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-ext2-properties/simple_and_skiplist_2lvl-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 21:04:19,218 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 21:04:19,221 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 21:04:19,234 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 21:04:19,234 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 21:04:19,235 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 21:04:19,237 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 21:04:19,239 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 21:04:19,241 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 21:04:19,241 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 21:04:19,246 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 21:04:19,247 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 21:04:19,247 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 21:04:19,248 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 21:04:19,249 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 21:04:19,254 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 21:04:19,255 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 21:04:19,258 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 21:04:19,261 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 21:04:19,263 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 21:04:19,267 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 21:04:19,268 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 21:04:19,271 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 21:04:19,272 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 21:04:19,276 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 21:04:19,276 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 21:04:19,276 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 21:04:19,277 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 21:04:19,278 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 21:04:19,279 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 21:04:19,279 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 21:04:19,280 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 21:04:19,280 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 21:04:19,281 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 21:04:19,282 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 21:04:19,282 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 21:04:19,283 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 21:04:19,283 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 21:04:19,284 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 21:04:19,284 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 21:04:19,285 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 21:04:19,286 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 21:04:19,308 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 21:04:19,308 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 21:04:19,312 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 21:04:19,312 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 21:04:19,313 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 21:04:19,313 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 21:04:19,314 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 21:04:19,314 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 21:04:19,314 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 21:04:19,314 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 21:04:19,314 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 21:04:19,315 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 21:04:19,315 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 21:04:19,316 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 21:04:19,317 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 21:04:19,317 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 21:04:19,317 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 21:04:19,317 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 21:04:19,318 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 21:04:19,318 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 21:04:19,318 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 21:04:19,318 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 21:04:19,319 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 21:04:19,319 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 21:04:19,319 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 21:04:19,319 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 21:04:19,319 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 21:04:19,320 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 21:04:19,320 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 21:04:19,648 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 21:04:19,661 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 21:04:19,665 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 21:04:19,666 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 21:04:19,667 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 21:04:19,667 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-ext2-properties/simple_and_skiplist_2lvl-2.i [2019-10-13 21:04:19,730 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b99fbddb6/23880eeeeca2476286b1a1d4f9719b01/FLAGf506e4ba7 [2019-10-13 21:04:20,261 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 21:04:20,262 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/list-ext2-properties/simple_and_skiplist_2lvl-2.i [2019-10-13 21:04:20,279 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b99fbddb6/23880eeeeca2476286b1a1d4f9719b01/FLAGf506e4ba7 [2019-10-13 21:04:20,611 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b99fbddb6/23880eeeeca2476286b1a1d4f9719b01 [2019-10-13 21:04:20,619 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 21:04:20,621 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 21:04:20,622 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 21:04:20,622 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 21:04:20,625 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 21:04:20,626 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:04:20" (1/1) ... [2019-10-13 21:04:20,628 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@592a4aba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:04:20, skipping insertion in model container [2019-10-13 21:04:20,628 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:04:20" (1/1) ... [2019-10-13 21:04:20,634 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 21:04:20,690 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 21:04:21,131 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:04:21,142 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 21:04:21,192 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:04:21,250 INFO L192 MainTranslator]: Completed translation [2019-10-13 21:04:21,251 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:04:21 WrapperNode [2019-10-13 21:04:21,251 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 21:04:21,252 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 21:04:21,252 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 21:04:21,253 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 21:04:21,268 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:04:21" (1/1) ... [2019-10-13 21:04:21,268 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:04:21" (1/1) ... [2019-10-13 21:04:21,289 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:04:21" (1/1) ... [2019-10-13 21:04:21,290 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:04:21" (1/1) ... [2019-10-13 21:04:21,311 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:04:21" (1/1) ... [2019-10-13 21:04:21,318 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:04:21" (1/1) ... [2019-10-13 21:04:21,323 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:04:21" (1/1) ... [2019-10-13 21:04:21,330 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 21:04:21,331 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 21:04:21,331 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 21:04:21,331 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 21:04:21,332 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:04:21" (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 21:04:21,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 21:04:21,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 21:04:21,396 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-10-13 21:04:21,396 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-10-13 21:04:21,396 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2019-10-13 21:04:21,396 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_or_die [2019-10-13 21:04:21,396 INFO L138 BoogieDeclarations]: Found implementation of procedure create_sl_with_head_and_tail [2019-10-13 21:04:21,396 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_random_insert [2019-10-13 21:04:21,397 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_sl [2019-10-13 21:04:21,397 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 21:04:21,397 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 21:04:21,397 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 21:04:21,397 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-10-13 21:04:21,397 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-10-13 21:04:21,398 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-10-13 21:04:21,398 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-10-13 21:04:21,398 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-10-13 21:04:21,398 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-10-13 21:04:21,398 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-10-13 21:04:21,398 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-10-13 21:04:21,399 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-10-13 21:04:21,399 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-10-13 21:04:21,399 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-10-13 21:04:21,399 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-10-13 21:04:21,399 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-10-13 21:04:21,400 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-10-13 21:04:21,400 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-10-13 21:04:21,401 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-10-13 21:04:21,401 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-10-13 21:04:21,401 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-10-13 21:04:21,401 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-10-13 21:04:21,401 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-10-13 21:04:21,401 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-10-13 21:04:21,402 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-10-13 21:04:21,402 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-10-13 21:04:21,402 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-10-13 21:04:21,402 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-10-13 21:04:21,402 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-10-13 21:04:21,402 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-10-13 21:04:21,402 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-10-13 21:04:21,402 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-10-13 21:04:21,402 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-10-13 21:04:21,403 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-10-13 21:04:21,403 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-10-13 21:04:21,403 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-10-13 21:04:21,403 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-10-13 21:04:21,403 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-10-13 21:04:21,403 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-10-13 21:04:21,403 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-10-13 21:04:21,403 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-10-13 21:04:21,403 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-10-13 21:04:21,404 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-10-13 21:04:21,404 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-10-13 21:04:21,404 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-10-13 21:04:21,404 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-10-13 21:04:21,404 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-10-13 21:04:21,404 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-10-13 21:04:21,404 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-10-13 21:04:21,404 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-10-13 21:04:21,404 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-10-13 21:04:21,404 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-10-13 21:04:21,405 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-10-13 21:04:21,405 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-10-13 21:04:21,405 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-10-13 21:04:21,405 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 21:04:21,405 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-13 21:04:21,405 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-10-13 21:04:21,406 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 21:04:21,406 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-10-13 21:04:21,406 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-10-13 21:04:21,406 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-10-13 21:04:21,406 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-10-13 21:04:21,406 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-10-13 21:04:21,406 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-10-13 21:04:21,407 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-10-13 21:04:21,407 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-10-13 21:04:21,407 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-10-13 21:04:21,407 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-13 21:04:21,407 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-10-13 21:04:21,407 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-10-13 21:04:21,407 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-10-13 21:04:21,408 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-10-13 21:04:21,408 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-10-13 21:04:21,408 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-10-13 21:04:21,408 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-10-13 21:04:21,408 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-10-13 21:04:21,408 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-10-13 21:04:21,409 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-10-13 21:04:21,409 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-10-13 21:04:21,409 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-10-13 21:04:21,409 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-10-13 21:04:21,409 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-10-13 21:04:21,409 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-10-13 21:04:21,409 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-10-13 21:04:21,410 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-10-13 21:04:21,410 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-10-13 21:04:21,410 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-10-13 21:04:21,410 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-10-13 21:04:21,410 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-10-13 21:04:21,410 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-10-13 21:04:21,410 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-10-13 21:04:21,410 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-10-13 21:04:21,410 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-10-13 21:04:21,410 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-10-13 21:04:21,411 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-10-13 21:04:21,411 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-10-13 21:04:21,411 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-10-13 21:04:21,411 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-10-13 21:04:21,411 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-10-13 21:04:21,411 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-10-13 21:04:21,411 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-10-13 21:04:21,411 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-10-13 21:04:21,411 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-10-13 21:04:21,411 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-10-13 21:04:21,412 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-10-13 21:04:21,412 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-10-13 21:04:21,412 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-10-13 21:04:21,412 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2019-10-13 21:04:21,412 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_or_die [2019-10-13 21:04:21,412 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 21:04:21,412 INFO L130 BoogieDeclarations]: Found specification of procedure create_sl_with_head_and_tail [2019-10-13 21:04:21,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 21:04:21,413 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 21:04:21,413 INFO L130 BoogieDeclarations]: Found specification of procedure sl_random_insert [2019-10-13 21:04:21,413 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_sl [2019-10-13 21:04:21,413 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 21:04:21,413 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 21:04:21,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 21:04:21,414 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 21:04:21,414 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 21:04:21,414 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 21:04:21,808 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2019-10-13 21:04:22,218 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 21:04:22,219 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-10-13 21:04:22,220 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:04:22 BoogieIcfgContainer [2019-10-13 21:04:22,221 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 21:04:22,223 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 21:04:22,225 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 21:04:22,231 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 21:04:22,231 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 09:04:20" (1/3) ... [2019-10-13 21:04:22,232 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@531896bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:04:22, skipping insertion in model container [2019-10-13 21:04:22,232 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:04:21" (2/3) ... [2019-10-13 21:04:22,234 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@531896bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:04:22, skipping insertion in model container [2019-10-13 21:04:22,234 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:04:22" (3/3) ... [2019-10-13 21:04:22,242 INFO L109 eAbstractionObserver]: Analyzing ICFG simple_and_skiplist_2lvl-2.i [2019-10-13 21:04:22,250 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 21:04:22,257 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 21:04:22,268 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 21:04:22,292 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 21:04:22,293 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 21:04:22,293 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 21:04:22,293 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 21:04:22,293 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 21:04:22,294 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 21:04:22,294 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 21:04:22,294 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 21:04:22,310 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states. [2019-10-13 21:04:22,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-10-13 21:04:22,316 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:04:22,317 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:04:22,318 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:04:22,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:04:22,324 INFO L82 PathProgramCache]: Analyzing trace with hash 407034730, now seen corresponding path program 1 times [2019-10-13 21:04:22,333 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:04:22,334 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562933121] [2019-10-13 21:04:22,334 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:04:22,335 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:04:22,335 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:04:22,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:04:22,470 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 21:04:22,471 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562933121] [2019-10-13 21:04:22,472 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:04:22,472 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 21:04:22,473 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61611743] [2019-10-13 21:04:22,477 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 21:04:22,479 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:04:22,491 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 21:04:22,492 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 21:04:22,494 INFO L87 Difference]: Start difference. First operand 54 states. Second operand 2 states. [2019-10-13 21:04:22,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:04:22,522 INFO L93 Difference]: Finished difference Result 92 states and 124 transitions. [2019-10-13 21:04:22,522 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 21:04:22,523 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2019-10-13 21:04:22,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:04:22,532 INFO L225 Difference]: With dead ends: 92 [2019-10-13 21:04:22,533 INFO L226 Difference]: Without dead ends: 18 [2019-10-13 21:04:22,537 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 21:04:22,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-10-13 21:04:22,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-10-13 21:04:22,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-10-13 21:04:22,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2019-10-13 21:04:22,594 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 13 [2019-10-13 21:04:22,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:04:22,595 INFO L462 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2019-10-13 21:04:22,595 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 21:04:22,595 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2019-10-13 21:04:22,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-10-13 21:04:22,596 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:04:22,596 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:04:22,597 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:04:22,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:04:22,597 INFO L82 PathProgramCache]: Analyzing trace with hash -709462780, now seen corresponding path program 1 times [2019-10-13 21:04:22,597 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:04:22,598 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57448487] [2019-10-13 21:04:22,598 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:04:22,598 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:04:22,598 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:04:22,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:04:22,728 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 21:04:22,729 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57448487] [2019-10-13 21:04:22,730 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:04:22,730 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 21:04:22,731 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808055106] [2019-10-13 21:04:22,732 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 21:04:22,732 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:04:22,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 21:04:22,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 21:04:22,733 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand 5 states. [2019-10-13 21:04:22,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:04:22,860 INFO L93 Difference]: Finished difference Result 33 states and 35 transitions. [2019-10-13 21:04:22,861 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-13 21:04:22,862 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2019-10-13 21:04:22,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:04:22,863 INFO L225 Difference]: With dead ends: 33 [2019-10-13 21:04:22,864 INFO L226 Difference]: Without dead ends: 31 [2019-10-13 21:04:22,866 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-10-13 21:04:22,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2019-10-13 21:04:22,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 23. [2019-10-13 21:04:22,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-10-13 21:04:22,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 25 transitions. [2019-10-13 21:04:22,878 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 25 transitions. Word has length 14 [2019-10-13 21:04:22,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:04:22,879 INFO L462 AbstractCegarLoop]: Abstraction has 23 states and 25 transitions. [2019-10-13 21:04:22,879 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 21:04:22,879 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 25 transitions. [2019-10-13 21:04:22,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-10-13 21:04:22,880 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:04:22,880 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:04:22,881 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:04:22,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:04:22,882 INFO L82 PathProgramCache]: Analyzing trace with hash -66753378, now seen corresponding path program 1 times [2019-10-13 21:04:22,883 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:04:22,883 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144657639] [2019-10-13 21:04:22,883 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:04:22,883 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:04:22,884 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:04:22,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:04:23,094 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:04:23,095 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144657639] [2019-10-13 21:04:23,095 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [658187179] [2019-10-13 21:04:23,095 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 21:04:23,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:04:23,237 INFO L256 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 19 conjunts are in the unsatisfiable core [2019-10-13 21:04:23,243 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 21:04:23,321 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2019-10-13 21:04:23,322 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-13 21:04:23,333 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-13 21:04:23,338 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2019-10-13 21:04:23,338 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-13 21:04:23,346 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-13 21:04:23,346 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-13 21:04:23,347 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:26, output treesize:18 [2019-10-13 21:04:23,368 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2019-10-13 21:04:23,369 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-13 21:04:23,376 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-13 21:04:23,380 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2019-10-13 21:04:23,381 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-13 21:04:23,388 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-13 21:04:23,388 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-13 21:04:23,388 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:7 [2019-10-13 21:04:23,391 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:04:23,391 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 21:04:23,433 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 29 [2019-10-13 21:04:23,435 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2019-10-13 21:04:23,452 INFO L567 ElimStorePlain]: treesize reduction 19, result has 36.7 percent of original size [2019-10-13 21:04:23,452 INFO L464 ElimStorePlain]: Eliminatee |v_#memory_$Pointer$.offset_39| vanished before elimination [2019-10-13 21:04:23,452 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 2 xjuncts. [2019-10-13 21:04:23,453 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:39, output treesize:11 [2019-10-13 21:04:23,474 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:04:23,475 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [1693511980] [2019-10-13 21:04:23,481 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 18 [2019-10-13 21:04:23,539 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-13 21:04:23,540 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-13 21:04:23,624 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-13 21:04:23,626 INFO L272 AbstractInterpreter]: Visited 6 different actions 6 times. Never merged. Never widened. Performed 19 root evaluator evaluations with a maximum evaluation depth of 0. Performed 19 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 28 variables. [2019-10-13 21:04:23,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:04:23,630 INFO L536 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-13 21:04:23,662 INFO L227 lantSequenceWeakener]: Weakened 4 states. On average, predicates are now at 100% of their original sizes. [2019-10-13 21:04:23,662 INFO L551 sIntCurrentIteration]: Unifying AI predicates [2019-10-13 21:04:23,663 INFO L553 sIntCurrentIteration]: We unified 16 AI predicates to 16 [2019-10-13 21:04:23,663 INFO L562 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-13 21:04:23,664 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-10-13 21:04:23,664 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6, 6, 5] total 8 [2019-10-13 21:04:23,664 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189360409] [2019-10-13 21:04:23,665 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 21:04:23,666 INFO L137 tionRefinementEngine]: Using predicate unifier AbsIntPredicateUnifier provided by strategy TAIPAN [2019-10-13 21:04:23,666 INFO L124 tionRefinementEngine]: Using hoare triple checker CachingHoareTripleCheckerMap provided by strategy [2019-10-13 21:04:23,666 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 21:04:23,666 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 21:04:23,667 INFO L87 Difference]: Start difference. First operand 23 states and 25 transitions. Second operand 2 states. [2019-10-13 21:04:23,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:04:23,668 INFO L93 Difference]: Finished difference Result 23 states and 25 transitions. [2019-10-13 21:04:23,668 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 21:04:23,669 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 17 [2019-10-13 21:04:23,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:04:23,669 INFO L225 Difference]: With dead ends: 23 [2019-10-13 21:04:23,669 INFO L226 Difference]: Without dead ends: 0 [2019-10-13 21:04:23,670 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 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 21:04:23,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-13 21:04:23,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-13 21:04:23,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-13 21:04:23,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-13 21:04:23,671 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2019-10-13 21:04:23,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:04:23,671 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-13 21:04:23,671 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 21:04:23,671 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-13 21:04:23,671 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-13 21:04:23,876 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:04:23,883 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-13 21:04:23,934 INFO L443 ceAbstractionStarter]: For program point L564-1(line 564) no Hoare annotation was computed. [2019-10-13 21:04:23,934 INFO L443 ceAbstractionStarter]: For program point L564-3(lines 564 565) no Hoare annotation was computed. [2019-10-13 21:04:23,934 INFO L446 ceAbstractionStarter]: At program point L564-5(lines 564 565) the Hoare annotation is: true [2019-10-13 21:04:23,935 INFO L443 ceAbstractionStarter]: For program point L564-6(lines 564 565) no Hoare annotation was computed. [2019-10-13 21:04:23,935 INFO L446 ceAbstractionStarter]: At program point sl_random_insertENTRY(lines 556 573) the Hoare annotation is: true [2019-10-13 21:04:23,935 INFO L443 ceAbstractionStarter]: For program point sl_random_insertEXIT(lines 556 573) no Hoare annotation was computed. [2019-10-13 21:04:23,935 INFO L443 ceAbstractionStarter]: For program point L569(lines 569 572) no Hoare annotation was computed. [2019-10-13 21:04:23,935 INFO L443 ceAbstractionStarter]: For program point L569-2(lines 556 573) no Hoare annotation was computed. [2019-10-13 21:04:23,935 INFO L443 ceAbstractionStarter]: For program point L561-1(line 561) no Hoare annotation was computed. [2019-10-13 21:04:23,936 INFO L443 ceAbstractionStarter]: For program point L561-3(lines 561 562) no Hoare annotation was computed. [2019-10-13 21:04:23,936 INFO L446 ceAbstractionStarter]: At program point L561-5(lines 561 562) the Hoare annotation is: true [2019-10-13 21:04:23,936 INFO L443 ceAbstractionStarter]: For program point L561-6(lines 561 562) no Hoare annotation was computed. [2019-10-13 21:04:23,936 INFO L443 ceAbstractionStarter]: For program point create_sl_with_head_and_tailEXIT(lines 547 555) no Hoare annotation was computed. [2019-10-13 21:04:23,936 INFO L446 ceAbstractionStarter]: At program point create_sl_with_head_and_tailENTRY(lines 547 555) the Hoare annotation is: true [2019-10-13 21:04:23,936 INFO L443 ceAbstractionStarter]: For program point create_sl_with_head_and_tailFINAL(lines 547 555) no Hoare annotation was computed. [2019-10-13 21:04:23,937 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-10-13 21:04:23,937 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-10-13 21:04:23,937 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-13 21:04:23,937 INFO L446 ceAbstractionStarter]: At program point myexitENTRY(lines 529 531) the Hoare annotation is: true [2019-10-13 21:04:23,938 INFO L443 ceAbstractionStarter]: For program point myexitEXIT(lines 529 531) no Hoare annotation was computed. [2019-10-13 21:04:23,938 INFO L446 ceAbstractionStarter]: At program point L530(line 530) the Hoare annotation is: true [2019-10-13 21:04:23,938 INFO L443 ceAbstractionStarter]: For program point __bswap_32ENTRY(lines 175 179) no Hoare annotation was computed. [2019-10-13 21:04:23,938 INFO L443 ceAbstractionStarter]: For program point __bswap_32FINAL(lines 175 179) no Hoare annotation was computed. [2019-10-13 21:04:23,938 INFO L443 ceAbstractionStarter]: For program point __bswap_32EXIT(lines 175 179) no Hoare annotation was computed. [2019-10-13 21:04:23,938 INFO L443 ceAbstractionStarter]: For program point L577-1(lines 577 581) no Hoare annotation was computed. [2019-10-13 21:04:23,938 INFO L443 ceAbstractionStarter]: For program point destroy_slFINAL(lines 574 583) no Hoare annotation was computed. [2019-10-13 21:04:23,939 INFO L446 ceAbstractionStarter]: At program point L577-3(lines 577 581) the Hoare annotation is: true [2019-10-13 21:04:23,939 INFO L443 ceAbstractionStarter]: For program point L577-4(lines 577 581) no Hoare annotation was computed. [2019-10-13 21:04:23,939 INFO L446 ceAbstractionStarter]: At program point destroy_slENTRY(lines 574 583) the Hoare annotation is: true [2019-10-13 21:04:23,939 INFO L443 ceAbstractionStarter]: For program point destroy_slEXIT(lines 574 583) no Hoare annotation was computed. [2019-10-13 21:04:23,940 INFO L443 ceAbstractionStarter]: For program point __bswap_64ENTRY(lines 180 184) no Hoare annotation was computed. [2019-10-13 21:04:23,941 INFO L443 ceAbstractionStarter]: For program point __bswap_64FINAL(lines 180 184) no Hoare annotation was computed. [2019-10-13 21:04:23,941 INFO L443 ceAbstractionStarter]: For program point __bswap_64EXIT(lines 180 184) no Hoare annotation was computed. [2019-10-13 21:04:23,941 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-13 21:04:23,941 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-10-13 21:04:23,941 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-13 21:04:23,941 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-13 21:04:23,941 INFO L443 ceAbstractionStarter]: For program point L605(line 605) no Hoare annotation was computed. [2019-10-13 21:04:23,941 INFO L443 ceAbstractionStarter]: For program point L601(line 601) no Hoare annotation was computed. [2019-10-13 21:04:23,942 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 584 610) no Hoare annotation was computed. [2019-10-13 21:04:23,942 INFO L443 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 601) no Hoare annotation was computed. [2019-10-13 21:04:23,942 INFO L443 ceAbstractionStarter]: For program point L589-1(lines 589 595) no Hoare annotation was computed. [2019-10-13 21:04:23,942 INFO L439 ceAbstractionStarter]: At program point L589-3(lines 589 595) the Hoare annotation is: false [2019-10-13 21:04:23,942 INFO L443 ceAbstractionStarter]: For program point L589-4(lines 589 595) no Hoare annotation was computed. [2019-10-13 21:04:23,942 INFO L443 ceAbstractionStarter]: For program point L606-1(lines 606 607) no Hoare annotation was computed. [2019-10-13 21:04:23,943 INFO L446 ceAbstractionStarter]: At program point L606-3(lines 606 607) the Hoare annotation is: true [2019-10-13 21:04:23,943 INFO L443 ceAbstractionStarter]: For program point L586(line 586) no Hoare annotation was computed. [2019-10-13 21:04:23,943 INFO L446 ceAbstractionStarter]: At program point L586-1(line 586) the Hoare annotation is: true [2019-10-13 21:04:23,943 INFO L443 ceAbstractionStarter]: For program point L586-3(line 586) no Hoare annotation was computed. [2019-10-13 21:04:23,943 INFO L446 ceAbstractionStarter]: At program point L607(line 607) the Hoare annotation is: true [2019-10-13 21:04:23,943 INFO L446 ceAbstractionStarter]: At program point L607-1(lines 606 607) the Hoare annotation is: true [2019-10-13 21:04:23,944 INFO L439 ceAbstractionStarter]: At program point L599-2(lines 599 604) the Hoare annotation is: false [2019-10-13 21:04:23,944 INFO L446 ceAbstractionStarter]: At program point L599-3(lines 599 604) the Hoare annotation is: true [2019-10-13 21:04:23,944 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 584 610) no Hoare annotation was computed. [2019-10-13 21:04:23,944 INFO L443 ceAbstractionStarter]: For program point L608(line 608) no Hoare annotation was computed. [2019-10-13 21:04:23,945 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 584 610) the Hoare annotation is: true [2019-10-13 21:04:23,945 INFO L443 ceAbstractionStarter]: For program point L600(lines 600 602) no Hoare annotation was computed. [2019-10-13 21:04:23,945 INFO L443 ceAbstractionStarter]: For program point L600-2(lines 600 602) no Hoare annotation was computed. [2019-10-13 21:04:23,945 INFO L443 ceAbstractionStarter]: For program point L592(line 592) no Hoare annotation was computed. [2019-10-13 21:04:23,945 INFO L446 ceAbstractionStarter]: At program point L592-1(line 592) the Hoare annotation is: true [2019-10-13 21:04:23,945 INFO L443 ceAbstractionStarter]: For program point L592-3(line 592) no Hoare annotation was computed. [2019-10-13 21:04:23,945 INFO L443 ceAbstractionStarter]: For program point alloc_or_dieEXIT(lines 542 546) no Hoare annotation was computed. [2019-10-13 21:04:23,946 INFO L443 ceAbstractionStarter]: For program point alloc_or_dieFINAL(lines 542 546) no Hoare annotation was computed. [2019-10-13 21:04:23,946 INFO L443 ceAbstractionStarter]: For program point alloc_or_dieENTRY(lines 542 546) no Hoare annotation was computed. [2019-10-13 21:04:23,957 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 09:04:23 BoogieIcfgContainer [2019-10-13 21:04:23,958 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-13 21:04:23,963 INFO L168 Benchmark]: Toolchain (without parser) took 3338.88 ms. Allocated memory was 137.9 MB in the beginning and 232.3 MB in the end (delta: 94.4 MB). Free memory was 101.1 MB in the beginning and 102.8 MB in the end (delta: -1.7 MB). Peak memory consumption was 92.7 MB. Max. memory is 7.1 GB. [2019-10-13 21:04:23,964 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 137.9 MB. Free memory is still 120.7 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-10-13 21:04:23,968 INFO L168 Benchmark]: CACSL2BoogieTranslator took 629.78 ms. Allocated memory was 137.9 MB in the beginning and 200.3 MB in the end (delta: 62.4 MB). Free memory was 101.1 MB in the beginning and 165.7 MB in the end (delta: -64.6 MB). Peak memory consumption was 25.6 MB. Max. memory is 7.1 GB. [2019-10-13 21:04:23,975 INFO L168 Benchmark]: Boogie Preprocessor took 78.73 ms. Allocated memory is still 200.3 MB. Free memory was 164.7 MB in the beginning and 161.8 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. [2019-10-13 21:04:23,976 INFO L168 Benchmark]: RCFGBuilder took 889.92 ms. Allocated memory is still 200.3 MB. Free memory was 161.8 MB in the beginning and 105.5 MB in the end (delta: 56.3 MB). Peak memory consumption was 56.3 MB. Max. memory is 7.1 GB. [2019-10-13 21:04:23,977 INFO L168 Benchmark]: TraceAbstraction took 1735.05 ms. Allocated memory was 200.3 MB in the beginning and 232.3 MB in the end (delta: 32.0 MB). Free memory was 105.5 MB in the beginning and 102.8 MB in the end (delta: 2.8 MB). Peak memory consumption was 34.7 MB. Max. memory is 7.1 GB. [2019-10-13 21:04:23,981 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 137.9 MB. Free memory is still 120.7 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 629.78 ms. Allocated memory was 137.9 MB in the beginning and 200.3 MB in the end (delta: 62.4 MB). Free memory was 101.1 MB in the beginning and 165.7 MB in the end (delta: -64.6 MB). Peak memory consumption was 25.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 78.73 ms. Allocated memory is still 200.3 MB. Free memory was 164.7 MB in the beginning and 161.8 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 889.92 ms. Allocated memory is still 200.3 MB. Free memory was 161.8 MB in the beginning and 105.5 MB in the end (delta: 56.3 MB). Peak memory consumption was 56.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1735.05 ms. Allocated memory was 200.3 MB in the beginning and 232.3 MB in the end (delta: 32.0 MB). Free memory was 105.5 MB in the beginning and 102.8 MB in the end (delta: 2.8 MB). Peak memory consumption was 34.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 601]: 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: 530]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 564]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 599]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 606]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 561]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 577]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 589]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 64 locations, 1 error locations. Result: SAFE, OverallTime: 1.6s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 84 SDtfs, 10 SDslu, 39 SDs, 0 SdLazy, 27 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=54occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 8 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 20 LocationsWithAnnotation, 28 PreInvPairs, 33 NumberOfFragments, 20 HoareAnnotationTreeSize, 28 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 20 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 61 NumberOfCodeBlocks, 61 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 73 ConstructedInterpolants, 0 QuantifiedInterpolants, 5867 SizeOfPredicates, 7 NumberOfNonLiveVariables, 75 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 3/6 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: TIME[ms]: 149, ITERATIONS: 1, WAS_STRONG: 1, WEAKENING_RATIO: 0.9375, AVG_VARS_REMOVED_DURING_WEAKENING: 0.875, AVG_WEAKENED_CONJUNCTS: 0.375, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...