/usr/bin/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 --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SHALLOWEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/heap-data/quick_sort_split.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-177f698 [2020-08-21 19:47:09,221 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-21 19:47:09,224 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-21 19:47:09,247 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-21 19:47:09,248 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-21 19:47:09,249 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-21 19:47:09,250 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-21 19:47:09,252 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-21 19:47:09,254 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-21 19:47:09,254 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-21 19:47:09,255 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-21 19:47:09,257 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-21 19:47:09,257 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-21 19:47:09,258 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-21 19:47:09,259 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-21 19:47:09,260 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-21 19:47:09,261 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-21 19:47:09,262 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-21 19:47:09,263 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-21 19:47:09,265 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-21 19:47:09,266 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-21 19:47:09,268 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-21 19:47:09,269 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-21 19:47:09,269 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-21 19:47:09,272 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-21 19:47:09,272 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-21 19:47:09,272 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-21 19:47:09,273 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-21 19:47:09,274 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-21 19:47:09,274 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-21 19:47:09,275 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-21 19:47:09,275 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-21 19:47:09,276 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-21 19:47:09,277 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-21 19:47:09,278 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-21 19:47:09,278 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-21 19:47:09,279 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-21 19:47:09,279 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-21 19:47:09,279 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-21 19:47:09,280 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-21 19:47:09,281 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-21 19:47:09,282 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-08-21 19:47:09,330 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-21 19:47:09,330 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-21 19:47:09,331 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-21 19:47:09,332 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-21 19:47:09,332 INFO L138 SettingsManager]: * Use SBE=true [2020-08-21 19:47:09,332 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-21 19:47:09,332 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-21 19:47:09,332 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-21 19:47:09,333 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-21 19:47:09,333 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-21 19:47:09,333 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-21 19:47:09,333 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-21 19:47:09,333 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-21 19:47:09,333 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-21 19:47:09,334 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-21 19:47:09,336 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-21 19:47:09,336 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-21 19:47:09,337 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-21 19:47:09,337 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-21 19:47:09,337 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-21 19:47:09,337 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-21 19:47:09,337 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-21 19:47:09,338 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-21 19:47:09,338 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-21 19:47:09,338 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-21 19:47:09,338 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-21 19:47:09,338 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-21 19:47:09,338 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-21 19:47:09,339 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-21 19:47:09,339 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true; [2020-08-21 19:47:09,658 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-21 19:47:09,672 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-21 19:47:09,675 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-21 19:47:09,676 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-21 19:47:09,677 INFO L275 PluginConnector]: CDTParser initialized [2020-08-21 19:47:09,680 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/heap-data/quick_sort_split.i [2020-08-21 19:47:09,745 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/13efec7c6/35675c312a504b0c9a52c54597a4a099/FLAG05ae43bc4 [2020-08-21 19:47:10,270 INFO L306 CDTParser]: Found 1 translation units. [2020-08-21 19:47:10,271 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/heap-data/quick_sort_split.i [2020-08-21 19:47:10,287 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/13efec7c6/35675c312a504b0c9a52c54597a4a099/FLAG05ae43bc4 [2020-08-21 19:47:10,618 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/13efec7c6/35675c312a504b0c9a52c54597a4a099 [2020-08-21 19:47:10,630 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-21 19:47:10,633 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-21 19:47:10,634 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-21 19:47:10,635 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-21 19:47:10,638 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-21 19:47:10,640 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 07:47:10" (1/1) ... [2020-08-21 19:47:10,643 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16606ffa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 07:47:10, skipping insertion in model container [2020-08-21 19:47:10,643 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 07:47:10" (1/1) ... [2020-08-21 19:47:10,652 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-21 19:47:10,714 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-21 19:47:11,207 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 19:47:11,221 INFO L203 MainTranslator]: Completed pre-run [2020-08-21 19:47:11,299 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 19:47:11,354 INFO L208 MainTranslator]: Completed translation [2020-08-21 19:47:11,355 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 07:47:11 WrapperNode [2020-08-21 19:47:11,355 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-21 19:47:11,356 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-21 19:47:11,356 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-21 19:47:11,356 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-21 19:47:11,370 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 07:47:11" (1/1) ... [2020-08-21 19:47:11,371 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 07:47:11" (1/1) ... [2020-08-21 19:47:11,387 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 07:47:11" (1/1) ... [2020-08-21 19:47:11,387 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 07:47:11" (1/1) ... [2020-08-21 19:47:11,404 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 07:47:11" (1/1) ... [2020-08-21 19:47:11,416 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 07:47:11" (1/1) ... [2020-08-21 19:47:11,420 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 07:47:11" (1/1) ... [2020-08-21 19:47:11,432 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-21 19:47:11,433 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-21 19:47:11,433 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-21 19:47:11,433 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-21 19:47:11,434 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 07:47:11" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-08-21 19:47:11,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-21 19:47:11,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-21 19:47:11,497 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-08-21 19:47:11,498 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-08-21 19:47:11,498 INFO L138 BoogieDeclarations]: Found implementation of procedure append_to_list [2020-08-21 19:47:11,498 INFO L138 BoogieDeclarations]: Found implementation of procedure create_list [2020-08-21 19:47:11,498 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-21 19:47:11,498 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-21 19:47:11,498 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-21 19:47:11,499 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-08-21 19:47:11,499 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-08-21 19:47:11,499 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-08-21 19:47:11,499 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-08-21 19:47:11,499 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-08-21 19:47:11,500 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-08-21 19:47:11,500 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-08-21 19:47:11,500 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-08-21 19:47:11,500 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-08-21 19:47:11,500 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-08-21 19:47:11,500 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-08-21 19:47:11,501 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-08-21 19:47:11,501 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-08-21 19:47:11,501 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-08-21 19:47:11,501 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-08-21 19:47:11,501 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-08-21 19:47:11,501 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-08-21 19:47:11,502 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-08-21 19:47:11,502 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-08-21 19:47:11,502 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-08-21 19:47:11,502 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-08-21 19:47:11,502 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-08-21 19:47:11,502 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-08-21 19:47:11,503 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-08-21 19:47:11,503 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-08-21 19:47:11,503 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-08-21 19:47:11,503 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-08-21 19:47:11,503 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-08-21 19:47:11,503 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-08-21 19:47:11,504 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-08-21 19:47:11,504 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-08-21 19:47:11,504 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-08-21 19:47:11,504 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-08-21 19:47:11,504 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-08-21 19:47:11,504 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-08-21 19:47:11,505 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-08-21 19:47:11,505 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-08-21 19:47:11,505 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-08-21 19:47:11,505 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-08-21 19:47:11,505 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-08-21 19:47:11,505 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-08-21 19:47:11,506 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-08-21 19:47:11,506 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-08-21 19:47:11,506 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-08-21 19:47:11,506 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-08-21 19:47:11,506 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-08-21 19:47:11,506 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-08-21 19:47:11,506 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-08-21 19:47:11,507 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-08-21 19:47:11,507 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-08-21 19:47:11,507 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-08-21 19:47:11,507 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-08-21 19:47:11,507 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-21 19:47:11,507 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-08-21 19:47:11,508 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-08-21 19:47:11,508 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-21 19:47:11,508 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-08-21 19:47:11,508 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-08-21 19:47:11,508 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-08-21 19:47:11,508 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-08-21 19:47:11,509 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-08-21 19:47:11,509 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-08-21 19:47:11,509 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-08-21 19:47:11,509 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-08-21 19:47:11,509 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-08-21 19:47:11,509 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-08-21 19:47:11,510 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-08-21 19:47:11,510 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-08-21 19:47:11,510 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-08-21 19:47:11,510 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-08-21 19:47:11,510 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-08-21 19:47:11,510 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-08-21 19:47:11,511 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-08-21 19:47:11,511 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-08-21 19:47:11,511 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-08-21 19:47:11,511 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-08-21 19:47:11,511 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-08-21 19:47:11,511 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-08-21 19:47:11,511 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-08-21 19:47:11,512 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-08-21 19:47:11,512 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-08-21 19:47:11,512 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-08-21 19:47:11,512 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-08-21 19:47:11,512 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-08-21 19:47:11,512 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-08-21 19:47:11,512 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-08-21 19:47:11,513 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-08-21 19:47:11,513 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-08-21 19:47:11,513 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-08-21 19:47:11,513 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-08-21 19:47:11,513 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-08-21 19:47:11,513 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-08-21 19:47:11,514 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-08-21 19:47:11,514 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-08-21 19:47:11,514 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-08-21 19:47:11,514 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-08-21 19:47:11,514 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-08-21 19:47:11,514 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-08-21 19:47:11,514 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-08-21 19:47:11,515 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-08-21 19:47:11,515 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-08-21 19:47:11,515 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-08-21 19:47:11,515 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-08-21 19:47:11,515 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-08-21 19:47:11,515 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-08-21 19:47:11,515 INFO L130 BoogieDeclarations]: Found specification of procedure append_to_list [2020-08-21 19:47:11,516 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-21 19:47:11,516 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-21 19:47:11,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-21 19:47:11,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-21 19:47:11,516 INFO L130 BoogieDeclarations]: Found specification of procedure create_list [2020-08-21 19:47:11,516 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-21 19:47:11,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-08-21 19:47:11,517 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-21 19:47:11,517 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-21 19:47:11,517 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-21 19:47:11,517 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-21 19:47:11,517 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-21 19:47:12,059 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-21 19:47:12,060 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-08-21 19:47:12,063 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 07:47:12 BoogieIcfgContainer [2020-08-21 19:47:12,063 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-21 19:47:12,065 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-21 19:47:12,065 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-21 19:47:12,068 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-21 19:47:12,068 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.08 07:47:10" (1/3) ... [2020-08-21 19:47:12,069 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f9f3f93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 07:47:12, skipping insertion in model container [2020-08-21 19:47:12,069 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 07:47:11" (2/3) ... [2020-08-21 19:47:12,070 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f9f3f93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 07:47:12, skipping insertion in model container [2020-08-21 19:47:12,070 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 07:47:12" (3/3) ... [2020-08-21 19:47:12,072 INFO L109 eAbstractionObserver]: Analyzing ICFG quick_sort_split.i [2020-08-21 19:47:12,082 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-21 19:47:12,091 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-08-21 19:47:12,106 INFO L251 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-08-21 19:47:12,131 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-21 19:47:12,131 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-21 19:47:12,131 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-21 19:47:12,131 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-21 19:47:12,132 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-21 19:47:12,132 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-21 19:47:12,132 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-21 19:47:12,132 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-21 19:47:12,153 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states. [2020-08-21 19:47:12,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-08-21 19:47:12,159 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 19:47:12,160 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 19:47:12,161 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 19:47:12,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 19:47:12,167 INFO L82 PathProgramCache]: Analyzing trace with hash 1851020699, now seen corresponding path program 1 times [2020-08-21 19:47:12,175 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 19:47:12,176 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [989274835] [2020-08-21 19:47:12,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 19:47:12,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:47:12,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 19:47:12,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:47:12,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-21 19:47:12,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:47:12,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 19:47:12,400 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [989274835] [2020-08-21 19:47:12,402 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 19:47:12,403 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-21 19:47:12,404 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857941255] [2020-08-21 19:47:12,409 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-21 19:47:12,409 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 19:47:12,423 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-21 19:47:12,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-21 19:47:12,427 INFO L87 Difference]: Start difference. First operand 36 states. Second operand 4 states. [2020-08-21 19:47:12,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 19:47:12,643 INFO L93 Difference]: Finished difference Result 57 states and 77 transitions. [2020-08-21 19:47:12,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-21 19:47:12,645 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2020-08-21 19:47:12,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 19:47:12,657 INFO L225 Difference]: With dead ends: 57 [2020-08-21 19:47:12,657 INFO L226 Difference]: Without dead ends: 32 [2020-08-21 19:47:12,661 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-08-21 19:47:12,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-08-21 19:47:12,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2020-08-21 19:47:12,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-08-21 19:47:12,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 38 transitions. [2020-08-21 19:47:12,705 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 38 transitions. Word has length 16 [2020-08-21 19:47:12,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 19:47:12,706 INFO L479 AbstractCegarLoop]: Abstraction has 32 states and 38 transitions. [2020-08-21 19:47:12,706 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-21 19:47:12,706 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 38 transitions. [2020-08-21 19:47:12,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-08-21 19:47:12,708 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 19:47:12,708 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 19:47:12,709 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-21 19:47:12,709 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 19:47:12,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 19:47:12,710 INFO L82 PathProgramCache]: Analyzing trace with hash 1239240901, now seen corresponding path program 1 times [2020-08-21 19:47:12,710 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 19:47:12,710 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1951898240] [2020-08-21 19:47:12,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 19:47:12,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:47:12,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 19:47:12,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:47:12,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-21 19:47:12,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:47:12,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 19:47:12,848 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1951898240] [2020-08-21 19:47:12,848 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 19:47:12,848 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-21 19:47:12,848 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687439227] [2020-08-21 19:47:12,850 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-21 19:47:12,850 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 19:47:12,851 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-21 19:47:12,851 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-08-21 19:47:12,851 INFO L87 Difference]: Start difference. First operand 32 states and 38 transitions. Second operand 5 states. [2020-08-21 19:47:12,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 19:47:12,980 INFO L93 Difference]: Finished difference Result 38 states and 45 transitions. [2020-08-21 19:47:12,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-08-21 19:47:12,981 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-08-21 19:47:12,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 19:47:12,982 INFO L225 Difference]: With dead ends: 38 [2020-08-21 19:47:12,982 INFO L226 Difference]: Without dead ends: 28 [2020-08-21 19:47:12,983 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-08-21 19:47:12,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-08-21 19:47:12,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2020-08-21 19:47:12,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-08-21 19:47:12,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 33 transitions. [2020-08-21 19:47:12,992 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 33 transitions. Word has length 17 [2020-08-21 19:47:12,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 19:47:12,992 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 33 transitions. [2020-08-21 19:47:12,992 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-21 19:47:12,993 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 33 transitions. [2020-08-21 19:47:12,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-08-21 19:47:12,994 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 19:47:12,994 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 19:47:12,994 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-21 19:47:12,994 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 19:47:12,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 19:47:12,995 INFO L82 PathProgramCache]: Analyzing trace with hash -238280333, now seen corresponding path program 1 times [2020-08-21 19:47:12,995 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 19:47:12,995 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [725031680] [2020-08-21 19:47:12,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 19:47:13,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:47:13,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 19:47:13,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:47:13,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-21 19:47:13,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:47:13,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 19:47:13,120 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [725031680] [2020-08-21 19:47:13,124 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 19:47:13,124 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-21 19:47:13,124 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508259542] [2020-08-21 19:47:13,125 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-21 19:47:13,125 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 19:47:13,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-21 19:47:13,125 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-08-21 19:47:13,126 INFO L87 Difference]: Start difference. First operand 28 states and 33 transitions. Second operand 5 states. [2020-08-21 19:47:13,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 19:47:13,239 INFO L93 Difference]: Finished difference Result 29 states and 34 transitions. [2020-08-21 19:47:13,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-08-21 19:47:13,240 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-08-21 19:47:13,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 19:47:13,241 INFO L225 Difference]: With dead ends: 29 [2020-08-21 19:47:13,241 INFO L226 Difference]: Without dead ends: 0 [2020-08-21 19:47:13,242 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-08-21 19:47:13,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-21 19:47:13,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-21 19:47:13,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-21 19:47:13,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-21 19:47:13,243 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-08-21 19:47:13,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 19:47:13,243 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-21 19:47:13,243 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-21 19:47:13,243 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-21 19:47:13,243 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-21 19:47:13,244 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-21 19:47:13,246 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-21 19:47:13,393 INFO L271 CegarLoopResult]: At program point L576(line 576) the Hoare annotation is: true [2020-08-21 19:47:13,393 INFO L271 CegarLoopResult]: At program point L576-1(lines 571 577) the Hoare annotation is: true [2020-08-21 19:47:13,394 INFO L271 CegarLoopResult]: At program point L574(line 574) the Hoare annotation is: true [2020-08-21 19:47:13,394 INFO L268 CegarLoopResult]: For program point L573(lines 573 576) no Hoare annotation was computed. [2020-08-21 19:47:13,394 INFO L268 CegarLoopResult]: For program point L571-1(lines 571 577) no Hoare annotation was computed. [2020-08-21 19:47:13,394 INFO L268 CegarLoopResult]: For program point L571-3(lines 571 577) no Hoare annotation was computed. [2020-08-21 19:47:13,394 INFO L268 CegarLoopResult]: For program point create_listEXIT(lines 569 579) no Hoare annotation was computed. [2020-08-21 19:47:13,395 INFO L264 CegarLoopResult]: At program point create_listENTRY(lines 569 579) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#valid)| |#valid|)) [2020-08-21 19:47:13,395 INFO L268 CegarLoopResult]: For program point create_listFINAL(lines 569 579) no Hoare annotation was computed. [2020-08-21 19:47:13,395 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-08-21 19:47:13,395 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |old(#NULL.base)| |#NULL.base|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2020-08-21 19:47:13,395 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-08-21 19:47:13,395 INFO L268 CegarLoopResult]: For program point __bswap_32ENTRY(lines 64 68) no Hoare annotation was computed. [2020-08-21 19:47:13,395 INFO L268 CegarLoopResult]: For program point __bswap_32FINAL(lines 64 68) no Hoare annotation was computed. [2020-08-21 19:47:13,396 INFO L268 CegarLoopResult]: For program point __bswap_32EXIT(lines 64 68) no Hoare annotation was computed. [2020-08-21 19:47:13,396 INFO L268 CegarLoopResult]: For program point __bswap_64ENTRY(lines 69 73) no Hoare annotation was computed. [2020-08-21 19:47:13,396 INFO L268 CegarLoopResult]: For program point __bswap_64FINAL(lines 69 73) no Hoare annotation was computed. [2020-08-21 19:47:13,396 INFO L268 CegarLoopResult]: For program point __bswap_64EXIT(lines 69 73) no Hoare annotation was computed. [2020-08-21 19:47:13,396 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-08-21 19:47:13,396 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-08-21 19:47:13,396 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-08-21 19:47:13,397 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-08-21 19:47:13,397 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 580 602) no Hoare annotation was computed. [2020-08-21 19:47:13,397 INFO L268 CegarLoopResult]: For program point L597-1(lines 580 602) no Hoare annotation was computed. [2020-08-21 19:47:13,398 INFO L268 CegarLoopResult]: For program point L597-2(lines 580 602) no Hoare annotation was computed. [2020-08-21 19:47:13,398 INFO L268 CegarLoopResult]: For program point L593(lines 593 594) no Hoare annotation was computed. [2020-08-21 19:47:13,398 INFO L268 CegarLoopResult]: For program point L593-2(lines 593 594) no Hoare annotation was computed. [2020-08-21 19:47:13,398 INFO L264 CegarLoopResult]: At program point L585-2(lines 585 591) the Hoare annotation is: (and (= 0 main_~high~0.offset) (= main_~low~0.base 0) (= main_~high~0.base 0) (= main_~low~0.offset 0)) [2020-08-21 19:47:13,399 INFO L268 CegarLoopResult]: For program point L581(line 581) no Hoare annotation was computed. [2020-08-21 19:47:13,399 INFO L268 CegarLoopResult]: For program point L598(lines 598 599) no Hoare annotation was computed. [2020-08-21 19:47:13,399 INFO L268 CegarLoopResult]: For program point L598-2(lines 598 599) no Hoare annotation was computed. [2020-08-21 19:47:13,399 INFO L268 CegarLoopResult]: For program point L594(line 594) no Hoare annotation was computed. [2020-08-21 19:47:13,399 INFO L268 CegarLoopResult]: For program point L586(line 586) no Hoare annotation was computed. [2020-08-21 19:47:13,399 INFO L268 CegarLoopResult]: For program point L586-2(line 586) no Hoare annotation was computed. [2020-08-21 19:47:13,399 INFO L268 CegarLoopResult]: For program point mainErr1ASSERT_VIOLATIONERROR_FUNCTION(line 599) no Hoare annotation was computed. [2020-08-21 19:47:13,400 INFO L268 CegarLoopResult]: For program point L599(line 599) no Hoare annotation was computed. [2020-08-21 19:47:13,400 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 594) no Hoare annotation was computed. [2020-08-21 19:47:13,400 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 580 602) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#valid)| |#valid|)) [2020-08-21 19:47:13,400 INFO L268 CegarLoopResult]: For program point L592-1(lines 580 602) no Hoare annotation was computed. [2020-08-21 19:47:13,400 INFO L268 CegarLoopResult]: For program point append_to_listEXIT(lines 562 568) no Hoare annotation was computed. [2020-08-21 19:47:13,400 INFO L264 CegarLoopResult]: At program point append_to_listENTRY(lines 562 568) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#valid)| |#valid|)) [2020-08-21 19:47:13,401 INFO L268 CegarLoopResult]: For program point append_to_listFINAL(lines 562 568) no Hoare annotation was computed. [2020-08-21 19:47:13,418 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.08 07:47:13 BoogieIcfgContainer [2020-08-21 19:47:13,418 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-21 19:47:13,421 INFO L168 Benchmark]: Toolchain (without parser) took 2787.83 ms. Allocated memory was 141.0 MB in the beginning and 234.4 MB in the end (delta: 93.3 MB). Free memory was 102.5 MB in the beginning and 123.2 MB in the end (delta: -20.7 MB). Peak memory consumption was 72.6 MB. Max. memory is 7.1 GB. [2020-08-21 19:47:13,422 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 141.0 MB. Free memory was 122.6 MB in the beginning and 122.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-08-21 19:47:13,423 INFO L168 Benchmark]: CACSL2BoogieTranslator took 720.88 ms. Allocated memory was 141.0 MB in the beginning and 203.9 MB in the end (delta: 62.9 MB). Free memory was 102.3 MB in the beginning and 169.1 MB in the end (delta: -66.8 MB). Peak memory consumption was 22.4 MB. Max. memory is 7.1 GB. [2020-08-21 19:47:13,424 INFO L168 Benchmark]: Boogie Preprocessor took 76.85 ms. Allocated memory is still 203.9 MB. Free memory was 169.1 MB in the beginning and 166.5 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2020-08-21 19:47:13,424 INFO L168 Benchmark]: RCFGBuilder took 630.80 ms. Allocated memory is still 203.9 MB. Free memory was 165.9 MB in the beginning and 120.0 MB in the end (delta: 45.9 MB). Peak memory consumption was 45.9 MB. Max. memory is 7.1 GB. [2020-08-21 19:47:13,425 INFO L168 Benchmark]: TraceAbstraction took 1353.53 ms. Allocated memory was 203.9 MB in the beginning and 234.4 MB in the end (delta: 30.4 MB). Free memory was 120.0 MB in the beginning and 123.2 MB in the end (delta: -3.2 MB). Peak memory consumption was 27.2 MB. Max. memory is 7.1 GB. [2020-08-21 19:47:13,430 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 141.0 MB. Free memory was 122.6 MB in the beginning and 122.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 720.88 ms. Allocated memory was 141.0 MB in the beginning and 203.9 MB in the end (delta: 62.9 MB). Free memory was 102.3 MB in the beginning and 169.1 MB in the end (delta: -66.8 MB). Peak memory consumption was 22.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 76.85 ms. Allocated memory is still 203.9 MB. Free memory was 169.1 MB in the beginning and 166.5 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 630.80 ms. Allocated memory is still 203.9 MB. Free memory was 165.9 MB in the beginning and 120.0 MB in the end (delta: 45.9 MB). Peak memory consumption was 45.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1353.53 ms. Allocated memory was 203.9 MB in the beginning and 234.4 MB in the end (delta: 30.4 MB). Free memory was 120.0 MB in the beginning and 123.2 MB in the end (delta: -3.2 MB). Peak memory consumption was 27.2 MB. 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: ((0 == high && low == 0) && high == 0) && low == 0 - InvariantResult [Line: 571]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 42 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.1s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 91 SDtfs, 14 SDslu, 105 SDs, 0 SdLazy, 125 SolverSat, 24 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s 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, 76 HoareAnnotationTreeSize, 11 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 30 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 51 NumberOfCodeBlocks, 51 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 48 ConstructedInterpolants, 0 QuantifiedInterpolants, 2420 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, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...