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/heap-data/quick_sort_split.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 00:11:24,193 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 00:11:24,196 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 00:11:24,213 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 00:11:24,214 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 00:11:24,216 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 00:11:24,217 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 00:11:24,226 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 00:11:24,230 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 00:11:24,233 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 00:11:24,234 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 00:11:24,236 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 00:11:24,236 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 00:11:24,238 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 00:11:24,240 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 00:11:24,241 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 00:11:24,243 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 00:11:24,243 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 00:11:24,245 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 00:11:24,249 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 00:11:24,253 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 00:11:24,255 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 00:11:24,258 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 00:11:24,258 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 00:11:24,260 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 00:11:24,260 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 00:11:24,261 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 00:11:24,262 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 00:11:24,263 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 00:11:24,264 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 00:11:24,264 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 00:11:24,265 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 00:11:24,266 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 00:11:24,266 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 00:11:24,268 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 00:11:24,268 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 00:11:24,269 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 00:11:24,269 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 00:11:24,269 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 00:11:24,270 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 00:11:24,271 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 00:11:24,272 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 00:11:24,296 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 00:11:24,297 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 00:11:24,298 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 00:11:24,298 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 00:11:24,298 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 00:11:24,298 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 00:11:24,299 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 00:11:24,299 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 00:11:24,299 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 00:11:24,299 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 00:11:24,299 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 00:11:24,300 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 00:11:24,300 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 00:11:24,300 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 00:11:24,300 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 00:11:24,300 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 00:11:24,300 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 00:11:24,301 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 00:11:24,301 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 00:11:24,301 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 00:11:24,301 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 00:11:24,301 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 00:11:24,302 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 00:11:24,302 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 00:11:24,302 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 00:11:24,302 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 00:11:24,302 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 00:11:24,303 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 00:11:24,303 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 00:11:24,574 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 00:11:24,587 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 00:11:24,590 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 00:11:24,592 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 00:11:24,592 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 00:11:24,593 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/heap-data/quick_sort_split.i [2019-10-15 00:11:24,669 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/194fd87fa/5c9211b36ff74939a9df70f6558083f7/FLAG13c9d6cde [2019-10-15 00:11:25,184 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 00:11:25,185 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/heap-data/quick_sort_split.i [2019-10-15 00:11:25,200 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/194fd87fa/5c9211b36ff74939a9df70f6558083f7/FLAG13c9d6cde [2019-10-15 00:11:25,507 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/194fd87fa/5c9211b36ff74939a9df70f6558083f7 [2019-10-15 00:11:25,517 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 00:11:25,518 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 00:11:25,519 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 00:11:25,519 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 00:11:25,522 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 00:11:25,523 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 12:11:25" (1/1) ... [2019-10-15 00:11:25,526 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@403b277c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:11:25, skipping insertion in model container [2019-10-15 00:11:25,526 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 12:11:25" (1/1) ... [2019-10-15 00:11:25,534 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 00:11:25,580 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 00:11:26,008 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 00:11:26,021 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 00:11:26,076 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 00:11:26,129 INFO L192 MainTranslator]: Completed translation [2019-10-15 00:11:26,130 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:11:26 WrapperNode [2019-10-15 00:11:26,130 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 00:11:26,131 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 00:11:26,131 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 00:11:26,131 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 00:11:26,144 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:11:26" (1/1) ... [2019-10-15 00:11:26,144 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:11:26" (1/1) ... [2019-10-15 00:11:26,160 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:11:26" (1/1) ... [2019-10-15 00:11:26,161 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:11:26" (1/1) ... [2019-10-15 00:11:26,175 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:11:26" (1/1) ... [2019-10-15 00:11:26,181 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:11:26" (1/1) ... [2019-10-15 00:11:26,184 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:11:26" (1/1) ... [2019-10-15 00:11:26,190 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 00:11:26,191 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 00:11:26,191 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 00:11:26,191 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 00:11:26,192 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:11:26" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 00:11:26,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 00:11:26,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 00:11:26,255 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-10-15 00:11:26,255 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-10-15 00:11:26,255 INFO L138 BoogieDeclarations]: Found implementation of procedure append_to_list [2019-10-15 00:11:26,256 INFO L138 BoogieDeclarations]: Found implementation of procedure create_list [2019-10-15 00:11:26,256 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 00:11:26,256 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 00:11:26,256 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 00:11:26,256 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-10-15 00:11:26,257 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-10-15 00:11:26,257 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-10-15 00:11:26,257 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-10-15 00:11:26,257 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-10-15 00:11:26,257 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-10-15 00:11:26,257 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-10-15 00:11:26,258 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-10-15 00:11:26,258 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-10-15 00:11:26,258 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-10-15 00:11:26,258 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-10-15 00:11:26,258 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-10-15 00:11:26,258 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-10-15 00:11:26,259 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-10-15 00:11:26,259 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-10-15 00:11:26,259 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-10-15 00:11:26,259 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-10-15 00:11:26,259 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-10-15 00:11:26,260 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-10-15 00:11:26,260 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-10-15 00:11:26,260 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-10-15 00:11:26,260 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-10-15 00:11:26,260 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-10-15 00:11:26,260 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-10-15 00:11:26,260 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-10-15 00:11:26,261 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-10-15 00:11:26,261 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-10-15 00:11:26,261 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-10-15 00:11:26,261 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-10-15 00:11:26,261 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-10-15 00:11:26,261 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-10-15 00:11:26,262 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-10-15 00:11:26,262 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-10-15 00:11:26,262 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-10-15 00:11:26,262 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-10-15 00:11:26,262 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-10-15 00:11:26,262 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-10-15 00:11:26,262 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-10-15 00:11:26,263 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-10-15 00:11:26,263 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-10-15 00:11:26,263 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-10-15 00:11:26,263 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-10-15 00:11:26,263 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-10-15 00:11:26,263 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-10-15 00:11:26,263 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-10-15 00:11:26,264 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-10-15 00:11:26,264 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-10-15 00:11:26,264 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-10-15 00:11:26,264 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-10-15 00:11:26,264 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-10-15 00:11:26,264 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-10-15 00:11:26,265 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-10-15 00:11:26,265 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 00:11:26,265 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-15 00:11:26,265 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-10-15 00:11:26,265 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 00:11:26,265 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-10-15 00:11:26,266 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-10-15 00:11:26,266 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-10-15 00:11:26,266 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-10-15 00:11:26,266 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-10-15 00:11:26,266 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-10-15 00:11:26,266 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-10-15 00:11:26,266 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-10-15 00:11:26,267 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-10-15 00:11:26,267 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-15 00:11:26,267 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-10-15 00:11:26,267 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-10-15 00:11:26,267 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-10-15 00:11:26,268 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-10-15 00:11:26,268 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-10-15 00:11:26,268 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-10-15 00:11:26,268 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-10-15 00:11:26,268 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-10-15 00:11:26,268 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-10-15 00:11:26,268 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-10-15 00:11:26,269 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-10-15 00:11:26,269 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-10-15 00:11:26,269 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-10-15 00:11:26,269 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-10-15 00:11:26,269 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-10-15 00:11:26,269 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-10-15 00:11:26,270 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-10-15 00:11:26,270 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-10-15 00:11:26,270 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-10-15 00:11:26,270 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-10-15 00:11:26,270 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-10-15 00:11:26,270 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-10-15 00:11:26,270 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-10-15 00:11:26,271 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-10-15 00:11:26,271 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-10-15 00:11:26,271 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-10-15 00:11:26,271 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-10-15 00:11:26,271 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-10-15 00:11:26,271 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-10-15 00:11:26,271 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-10-15 00:11:26,272 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-10-15 00:11:26,272 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-10-15 00:11:26,272 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-10-15 00:11:26,272 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-10-15 00:11:26,272 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-10-15 00:11:26,272 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-10-15 00:11:26,272 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-10-15 00:11:26,273 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-10-15 00:11:26,273 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-10-15 00:11:26,273 INFO L130 BoogieDeclarations]: Found specification of procedure append_to_list [2019-10-15 00:11:26,273 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 00:11:26,273 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 00:11:26,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 00:11:26,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 00:11:26,274 INFO L130 BoogieDeclarations]: Found specification of procedure create_list [2019-10-15 00:11:26,274 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 00:11:26,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-15 00:11:26,274 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 00:11:26,274 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 00:11:26,274 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 00:11:26,275 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 00:11:26,275 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 00:11:26,802 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 00:11:26,804 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-15 00:11:26,806 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 12:11:26 BoogieIcfgContainer [2019-10-15 00:11:26,806 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 00:11:26,808 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 00:11:26,808 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 00:11:26,811 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 00:11:26,812 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 12:11:25" (1/3) ... [2019-10-15 00:11:26,813 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@729e7177 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 12:11:26, skipping insertion in model container [2019-10-15 00:11:26,813 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:11:26" (2/3) ... [2019-10-15 00:11:26,817 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@729e7177 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 12:11:26, skipping insertion in model container [2019-10-15 00:11:26,817 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 12:11:26" (3/3) ... [2019-10-15 00:11:26,819 INFO L109 eAbstractionObserver]: Analyzing ICFG quick_sort_split.i [2019-10-15 00:11:26,829 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 00:11:26,839 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-10-15 00:11:26,850 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-10-15 00:11:26,881 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 00:11:26,890 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 00:11:26,891 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 00:11:26,891 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 00:11:26,892 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 00:11:26,892 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 00:11:26,892 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 00:11:26,893 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 00:11:26,914 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states. [2019-10-15 00:11:26,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-10-15 00:11:26,923 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:11:26,924 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 00:11:26,928 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:11:26,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:11:26,935 INFO L82 PathProgramCache]: Analyzing trace with hash 1851020699, now seen corresponding path program 1 times [2019-10-15 00:11:26,944 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:11:26,944 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612553134] [2019-10-15 00:11:26,945 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:11:26,945 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:11:26,945 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:11:27,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:11:27,094 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 00:11:27,095 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612553134] [2019-10-15 00:11:27,096 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:11:27,098 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 00:11:27,098 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189567446] [2019-10-15 00:11:27,103 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 00:11:27,105 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:11:27,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 00:11:27,120 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 00:11:27,123 INFO L87 Difference]: Start difference. First operand 36 states. Second operand 2 states. [2019-10-15 00:11:27,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:11:27,153 INFO L93 Difference]: Finished difference Result 57 states and 77 transitions. [2019-10-15 00:11:27,153 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 00:11:27,154 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2019-10-15 00:11:27,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:11:27,167 INFO L225 Difference]: With dead ends: 57 [2019-10-15 00:11:27,167 INFO L226 Difference]: Without dead ends: 32 [2019-10-15 00:11:27,170 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 00:11:27,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2019-10-15 00:11:27,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2019-10-15 00:11:27,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2019-10-15 00:11:27,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 38 transitions. [2019-10-15 00:11:27,214 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 38 transitions. Word has length 16 [2019-10-15 00:11:27,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:11:27,214 INFO L462 AbstractCegarLoop]: Abstraction has 32 states and 38 transitions. [2019-10-15 00:11:27,215 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 00:11:27,215 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 38 transitions. [2019-10-15 00:11:27,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-10-15 00:11:27,216 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:11:27,217 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 00:11:27,217 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:11:27,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:11:27,218 INFO L82 PathProgramCache]: Analyzing trace with hash 1239240901, now seen corresponding path program 1 times [2019-10-15 00:11:27,218 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:11:27,218 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83705269] [2019-10-15 00:11:27,218 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:11:27,219 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:11:27,219 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:11:27,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:11:27,302 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 00:11:27,302 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83705269] [2019-10-15 00:11:27,303 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:11:27,303 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 00:11:27,303 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453435126] [2019-10-15 00:11:27,305 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 00:11:27,305 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:11:27,306 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 00:11:27,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 00:11:27,306 INFO L87 Difference]: Start difference. First operand 32 states and 38 transitions. Second operand 3 states. [2019-10-15 00:11:27,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:11:27,323 INFO L93 Difference]: Finished difference Result 38 states and 45 transitions. [2019-10-15 00:11:27,323 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 00:11:27,323 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2019-10-15 00:11:27,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:11:27,325 INFO L225 Difference]: With dead ends: 38 [2019-10-15 00:11:27,325 INFO L226 Difference]: Without dead ends: 28 [2019-10-15 00:11:27,326 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 00:11:27,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2019-10-15 00:11:27,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2019-10-15 00:11:27,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-10-15 00:11:27,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 33 transitions. [2019-10-15 00:11:27,332 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 33 transitions. Word has length 17 [2019-10-15 00:11:27,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:11:27,333 INFO L462 AbstractCegarLoop]: Abstraction has 28 states and 33 transitions. [2019-10-15 00:11:27,333 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 00:11:27,333 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 33 transitions. [2019-10-15 00:11:27,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-10-15 00:11:27,334 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:11:27,334 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 00:11:27,335 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:11:27,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:11:27,335 INFO L82 PathProgramCache]: Analyzing trace with hash -238280333, now seen corresponding path program 1 times [2019-10-15 00:11:27,335 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:11:27,336 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867566653] [2019-10-15 00:11:27,336 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:11:27,336 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:11:27,336 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:11:27,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:11:27,424 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 00:11:27,425 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867566653] [2019-10-15 00:11:27,426 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:11:27,426 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 00:11:27,426 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290154021] [2019-10-15 00:11:27,426 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 00:11:27,427 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:11:27,427 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 00:11:27,427 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 00:11:27,427 INFO L87 Difference]: Start difference. First operand 28 states and 33 transitions. Second operand 3 states. [2019-10-15 00:11:27,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:11:27,438 INFO L93 Difference]: Finished difference Result 29 states and 34 transitions. [2019-10-15 00:11:27,438 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 00:11:27,438 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 18 [2019-10-15 00:11:27,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:11:27,439 INFO L225 Difference]: With dead ends: 29 [2019-10-15 00:11:27,439 INFO L226 Difference]: Without dead ends: 0 [2019-10-15 00:11:27,440 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 00:11:27,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-15 00:11:27,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-15 00:11:27,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-15 00:11:27,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-15 00:11:27,441 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2019-10-15 00:11:27,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:11:27,441 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-15 00:11:27,441 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 00:11:27,441 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-15 00:11:27,441 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-15 00:11:27,448 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-15 00:11:27,480 INFO L446 ceAbstractionStarter]: At program point L576(line 576) the Hoare annotation is: true [2019-10-15 00:11:27,481 INFO L446 ceAbstractionStarter]: At program point L576-1(lines 571 577) the Hoare annotation is: true [2019-10-15 00:11:27,481 INFO L446 ceAbstractionStarter]: At program point L574(line 574) the Hoare annotation is: true [2019-10-15 00:11:27,481 INFO L443 ceAbstractionStarter]: For program point L573(lines 573 576) no Hoare annotation was computed. [2019-10-15 00:11:27,481 INFO L443 ceAbstractionStarter]: For program point L571-1(lines 571 577) no Hoare annotation was computed. [2019-10-15 00:11:27,481 INFO L443 ceAbstractionStarter]: For program point L571-3(lines 571 577) no Hoare annotation was computed. [2019-10-15 00:11:27,482 INFO L443 ceAbstractionStarter]: For program point create_listEXIT(lines 569 579) no Hoare annotation was computed. [2019-10-15 00:11:27,482 INFO L446 ceAbstractionStarter]: At program point create_listENTRY(lines 569 579) the Hoare annotation is: true [2019-10-15 00:11:27,482 INFO L443 ceAbstractionStarter]: For program point create_listFINAL(lines 569 579) no Hoare annotation was computed. [2019-10-15 00:11:27,482 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-10-15 00:11:27,482 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-10-15 00:11:27,482 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-15 00:11:27,482 INFO L443 ceAbstractionStarter]: For program point __bswap_32ENTRY(lines 64 68) no Hoare annotation was computed. [2019-10-15 00:11:27,482 INFO L443 ceAbstractionStarter]: For program point __bswap_32FINAL(lines 64 68) no Hoare annotation was computed. [2019-10-15 00:11:27,483 INFO L443 ceAbstractionStarter]: For program point __bswap_32EXIT(lines 64 68) no Hoare annotation was computed. [2019-10-15 00:11:27,483 INFO L443 ceAbstractionStarter]: For program point __bswap_64ENTRY(lines 69 73) no Hoare annotation was computed. [2019-10-15 00:11:27,483 INFO L443 ceAbstractionStarter]: For program point __bswap_64FINAL(lines 69 73) no Hoare annotation was computed. [2019-10-15 00:11:27,483 INFO L443 ceAbstractionStarter]: For program point __bswap_64EXIT(lines 69 73) no Hoare annotation was computed. [2019-10-15 00:11:27,483 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-15 00:11:27,483 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-10-15 00:11:27,483 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-15 00:11:27,483 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-15 00:11:27,484 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 580 602) no Hoare annotation was computed. [2019-10-15 00:11:27,484 INFO L443 ceAbstractionStarter]: For program point L597-1(lines 580 602) no Hoare annotation was computed. [2019-10-15 00:11:27,484 INFO L443 ceAbstractionStarter]: For program point L597-2(lines 580 602) no Hoare annotation was computed. [2019-10-15 00:11:27,484 INFO L443 ceAbstractionStarter]: For program point L593(lines 593 594) no Hoare annotation was computed. [2019-10-15 00:11:27,484 INFO L443 ceAbstractionStarter]: For program point L593-2(lines 593 594) no Hoare annotation was computed. [2019-10-15 00:11:27,484 INFO L439 ceAbstractionStarter]: At program point L585-2(lines 585 591) the Hoare annotation is: (and (= main_~low~0.offset 0) (= 0 main_~low~0.base) (= main_~high~0.base 0) (= 0 main_~high~0.offset)) [2019-10-15 00:11:27,484 INFO L443 ceAbstractionStarter]: For program point L581(line 581) no Hoare annotation was computed. [2019-10-15 00:11:27,485 INFO L443 ceAbstractionStarter]: For program point L598(lines 598 599) no Hoare annotation was computed. [2019-10-15 00:11:27,485 INFO L443 ceAbstractionStarter]: For program point L598-2(lines 598 599) no Hoare annotation was computed. [2019-10-15 00:11:27,485 INFO L443 ceAbstractionStarter]: For program point L594(line 594) no Hoare annotation was computed. [2019-10-15 00:11:27,485 INFO L443 ceAbstractionStarter]: For program point L586(line 586) no Hoare annotation was computed. [2019-10-15 00:11:27,485 INFO L443 ceAbstractionStarter]: For program point L586-2(line 586) no Hoare annotation was computed. [2019-10-15 00:11:27,485 INFO L443 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 594) no Hoare annotation was computed. [2019-10-15 00:11:27,486 INFO L443 ceAbstractionStarter]: For program point L599(line 599) no Hoare annotation was computed. [2019-10-15 00:11:27,486 INFO L443 ceAbstractionStarter]: For program point mainErr1ASSERT_VIOLATIONERROR_FUNCTION(line 599) no Hoare annotation was computed. [2019-10-15 00:11:27,486 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 580 602) the Hoare annotation is: true [2019-10-15 00:11:27,486 INFO L443 ceAbstractionStarter]: For program point L592-1(lines 580 602) no Hoare annotation was computed. [2019-10-15 00:11:27,486 INFO L443 ceAbstractionStarter]: For program point append_to_listEXIT(lines 562 568) no Hoare annotation was computed. [2019-10-15 00:11:27,486 INFO L446 ceAbstractionStarter]: At program point append_to_listENTRY(lines 562 568) the Hoare annotation is: true [2019-10-15 00:11:27,487 INFO L443 ceAbstractionStarter]: For program point append_to_listFINAL(lines 562 568) no Hoare annotation was computed. [2019-10-15 00:11:27,501 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 12:11:27 BoogieIcfgContainer [2019-10-15 00:11:27,502 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-15 00:11:27,504 INFO L168 Benchmark]: Toolchain (without parser) took 1985.18 ms. Allocated memory was 144.7 MB in the beginning and 233.8 MB in the end (delta: 89.1 MB). Free memory was 101.5 MB in the beginning and 190.1 MB in the end (delta: -88.6 MB). Peak memory consumption was 505.0 kB. Max. memory is 7.1 GB. [2019-10-15 00:11:27,505 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 144.7 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-15 00:11:27,506 INFO L168 Benchmark]: CACSL2BoogieTranslator took 611.45 ms. Allocated memory was 144.7 MB in the beginning and 202.4 MB in the end (delta: 57.7 MB). Free memory was 101.3 MB in the beginning and 168.2 MB in the end (delta: -66.9 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. [2019-10-15 00:11:27,507 INFO L168 Benchmark]: Boogie Preprocessor took 59.84 ms. Allocated memory is still 202.4 MB. Free memory was 168.2 MB in the beginning and 165.4 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 7.1 GB. [2019-10-15 00:11:27,508 INFO L168 Benchmark]: RCFGBuilder took 615.11 ms. Allocated memory is still 202.4 MB. Free memory was 165.4 MB in the beginning and 119.7 MB in the end (delta: 45.7 MB). Peak memory consumption was 45.7 MB. Max. memory is 7.1 GB. [2019-10-15 00:11:27,509 INFO L168 Benchmark]: TraceAbstraction took 694.01 ms. Allocated memory was 202.4 MB in the beginning and 233.8 MB in the end (delta: 31.5 MB). Free memory was 119.7 MB in the beginning and 190.1 MB in the end (delta: -70.4 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-10-15 00:11:27,513 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 144.7 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 611.45 ms. Allocated memory was 144.7 MB in the beginning and 202.4 MB in the end (delta: 57.7 MB). Free memory was 101.3 MB in the beginning and 168.2 MB in the end (delta: -66.9 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 59.84 ms. Allocated memory is still 202.4 MB. Free memory was 168.2 MB in the beginning and 165.4 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 615.11 ms. Allocated memory is still 202.4 MB. Free memory was 165.4 MB in the beginning and 119.7 MB in the end (delta: 45.7 MB). Peak memory consumption was 45.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 694.01 ms. Allocated memory was 202.4 MB in the beginning and 233.8 MB in the end (delta: 31.5 MB). Free memory was 119.7 MB in the beginning and 190.1 MB in the end (delta: -70.4 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 594]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 599]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 585]: Loop Invariant Derived loop invariant: ((low == 0 && 0 == low) && high == 0) && 0 == high - InvariantResult [Line: 571]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 42 locations, 2 error locations. Result: SAFE, OverallTime: 0.6s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 100 SDtfs, 14 SDslu, 42 SDs, 0 SdLazy, 3 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=36occurred 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 11 PreInvPairs, 12 NumberOfFragments, 22 HoareAnnotationTreeSize, 11 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 51 NumberOfCodeBlocks, 51 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 48 ConstructedInterpolants, 0 QuantifiedInterpolants, 1268 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...