/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=5 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 -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 0.1.25-5644d1e-m [2020-08-19 01:10:44,402 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-19 01:10:44,404 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-19 01:10:44,428 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-19 01:10:44,428 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-19 01:10:44,429 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-19 01:10:44,431 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-19 01:10:44,432 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-19 01:10:44,434 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-19 01:10:44,435 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-19 01:10:44,441 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-19 01:10:44,442 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-19 01:10:44,443 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-19 01:10:44,444 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-19 01:10:44,445 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-19 01:10:44,446 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-19 01:10:44,447 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-19 01:10:44,448 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-19 01:10:44,449 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-19 01:10:44,451 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-19 01:10:44,453 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-19 01:10:44,454 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-19 01:10:44,455 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-19 01:10:44,456 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-19 01:10:44,458 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-19 01:10:44,459 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-19 01:10:44,459 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-19 01:10:44,460 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-19 01:10:44,460 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-19 01:10:44,461 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-19 01:10:44,461 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-19 01:10:44,462 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-19 01:10:44,463 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-19 01:10:44,463 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-19 01:10:44,464 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-19 01:10:44,465 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-19 01:10:44,466 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-19 01:10:44,466 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-19 01:10:44,466 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-19 01:10:44,467 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-19 01:10:44,467 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-19 01:10:44,468 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 [2020-08-19 01:10:44,492 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-19 01:10:44,492 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-19 01:10:44,493 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-19 01:10:44,494 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-19 01:10:44,494 INFO L138 SettingsManager]: * Use SBE=true [2020-08-19 01:10:44,494 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-19 01:10:44,494 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-19 01:10:44,495 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-19 01:10:44,495 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-19 01:10:44,495 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-19 01:10:44,495 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-19 01:10:44,495 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-19 01:10:44,496 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-19 01:10:44,496 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-19 01:10:44,496 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-19 01:10:44,496 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-19 01:10:44,496 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-19 01:10:44,497 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-19 01:10:44,497 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-19 01:10:44,497 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-19 01:10:44,497 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-19 01:10:44,498 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-19 01:10:44,498 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-19 01:10:44,498 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-19 01:10:44,498 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-19 01:10:44,498 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-19 01:10:44,499 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-19 01:10:44,499 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-19 01:10:44,499 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-19 01:10:44,499 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=5;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6; [2020-08-19 01:10:44,800 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-19 01:10:44,813 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-19 01:10:44,816 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-19 01:10:44,818 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-19 01:10:44,818 INFO L275 PluginConnector]: CDTParser initialized [2020-08-19 01:10:44,819 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/heap-data/quick_sort_split.i [2020-08-19 01:10:44,888 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ccb6200f1/f470a9fd75d94bdbb18ea5191aa35fd7/FLAG661c1d8c2 [2020-08-19 01:10:45,495 INFO L306 CDTParser]: Found 1 translation units. [2020-08-19 01:10:45,495 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/heap-data/quick_sort_split.i [2020-08-19 01:10:45,527 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ccb6200f1/f470a9fd75d94bdbb18ea5191aa35fd7/FLAG661c1d8c2 [2020-08-19 01:10:45,769 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ccb6200f1/f470a9fd75d94bdbb18ea5191aa35fd7 [2020-08-19 01:10:45,779 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-19 01:10:45,781 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-19 01:10:45,782 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-19 01:10:45,783 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-19 01:10:45,786 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-19 01:10:45,787 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.08 01:10:45" (1/1) ... [2020-08-19 01:10:45,790 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f3798bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 01:10:45, skipping insertion in model container [2020-08-19 01:10:45,790 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.08 01:10:45" (1/1) ... [2020-08-19 01:10:45,799 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-19 01:10:45,852 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-19 01:10:46,333 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-19 01:10:46,351 INFO L203 MainTranslator]: Completed pre-run [2020-08-19 01:10:46,394 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-19 01:10:46,460 INFO L208 MainTranslator]: Completed translation [2020-08-19 01:10:46,460 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 01:10:46 WrapperNode [2020-08-19 01:10:46,460 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-19 01:10:46,461 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-19 01:10:46,461 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-19 01:10:46,462 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-19 01:10:46,475 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 01:10:46" (1/1) ... [2020-08-19 01:10:46,475 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 01:10:46" (1/1) ... [2020-08-19 01:10:46,491 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 01:10:46" (1/1) ... [2020-08-19 01:10:46,492 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 01:10:46" (1/1) ... [2020-08-19 01:10:46,507 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 01:10:46" (1/1) ... [2020-08-19 01:10:46,521 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 01:10:46" (1/1) ... [2020-08-19 01:10:46,527 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 01:10:46" (1/1) ... [2020-08-19 01:10:46,533 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-19 01:10:46,534 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-19 01:10:46,534 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-19 01:10:46,534 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-19 01:10:46,535 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 01:10:46" (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 [2020-08-19 01:10:46,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-19 01:10:46,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-19 01:10:46,598 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-08-19 01:10:46,598 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-08-19 01:10:46,599 INFO L138 BoogieDeclarations]: Found implementation of procedure append_to_list [2020-08-19 01:10:46,599 INFO L138 BoogieDeclarations]: Found implementation of procedure create_list [2020-08-19 01:10:46,599 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-19 01:10:46,599 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-19 01:10:46,599 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-19 01:10:46,599 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-08-19 01:10:46,600 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-08-19 01:10:46,600 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-08-19 01:10:46,600 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-08-19 01:10:46,600 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-08-19 01:10:46,600 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-08-19 01:10:46,600 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-08-19 01:10:46,601 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-08-19 01:10:46,601 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-08-19 01:10:46,601 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-08-19 01:10:46,601 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-08-19 01:10:46,601 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-08-19 01:10:46,601 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-08-19 01:10:46,602 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-08-19 01:10:46,602 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-08-19 01:10:46,602 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-08-19 01:10:46,602 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-08-19 01:10:46,602 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-08-19 01:10:46,602 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-08-19 01:10:46,603 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-08-19 01:10:46,603 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-08-19 01:10:46,603 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-08-19 01:10:46,603 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-08-19 01:10:46,603 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-08-19 01:10:46,603 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-08-19 01:10:46,603 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-08-19 01:10:46,604 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-08-19 01:10:46,604 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-08-19 01:10:46,604 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-08-19 01:10:46,604 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-08-19 01:10:46,604 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-08-19 01:10:46,604 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-08-19 01:10:46,605 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-08-19 01:10:46,605 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-08-19 01:10:46,605 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-08-19 01:10:46,605 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-08-19 01:10:46,605 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-08-19 01:10:46,605 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-08-19 01:10:46,605 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-08-19 01:10:46,606 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-08-19 01:10:46,606 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-08-19 01:10:46,606 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-08-19 01:10:46,606 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-08-19 01:10:46,606 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-08-19 01:10:46,606 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-08-19 01:10:46,607 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-08-19 01:10:46,607 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-08-19 01:10:46,607 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-08-19 01:10:46,607 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-08-19 01:10:46,607 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-08-19 01:10:46,607 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-08-19 01:10:46,607 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-08-19 01:10:46,608 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-19 01:10:46,608 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-08-19 01:10:46,608 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-08-19 01:10:46,608 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-19 01:10:46,608 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-08-19 01:10:46,608 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-08-19 01:10:46,608 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-08-19 01:10:46,609 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-08-19 01:10:46,609 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-08-19 01:10:46,609 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-08-19 01:10:46,612 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-08-19 01:10:46,612 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-08-19 01:10:46,612 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-08-19 01:10:46,612 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-08-19 01:10:46,612 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-08-19 01:10:46,613 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-08-19 01:10:46,613 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-08-19 01:10:46,613 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-08-19 01:10:46,613 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-08-19 01:10:46,613 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-08-19 01:10:46,613 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-08-19 01:10:46,614 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-08-19 01:10:46,614 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-08-19 01:10:46,614 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-08-19 01:10:46,614 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-08-19 01:10:46,614 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-08-19 01:10:46,614 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-08-19 01:10:46,614 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-08-19 01:10:46,615 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-08-19 01:10:46,615 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-08-19 01:10:46,615 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-08-19 01:10:46,615 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-08-19 01:10:46,615 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-08-19 01:10:46,616 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-08-19 01:10:46,616 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-08-19 01:10:46,616 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-08-19 01:10:46,616 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-08-19 01:10:46,616 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-08-19 01:10:46,616 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-08-19 01:10:46,616 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-08-19 01:10:46,616 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-08-19 01:10:46,616 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-08-19 01:10:46,616 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-08-19 01:10:46,617 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-08-19 01:10:46,617 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-08-19 01:10:46,620 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-08-19 01:10:46,620 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-08-19 01:10:46,620 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-08-19 01:10:46,620 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-08-19 01:10:46,620 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-08-19 01:10:46,620 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-08-19 01:10:46,620 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-08-19 01:10:46,620 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-08-19 01:10:46,621 INFO L130 BoogieDeclarations]: Found specification of procedure append_to_list [2020-08-19 01:10:46,621 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-19 01:10:46,621 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-19 01:10:46,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-19 01:10:46,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-19 01:10:46,621 INFO L130 BoogieDeclarations]: Found specification of procedure create_list [2020-08-19 01:10:46,621 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-19 01:10:46,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-08-19 01:10:46,625 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-19 01:10:46,625 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-19 01:10:46,625 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-19 01:10:46,625 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-19 01:10:46,625 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-19 01:10:47,142 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-19 01:10:47,143 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-08-19 01:10:47,146 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.08 01:10:47 BoogieIcfgContainer [2020-08-19 01:10:47,147 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-19 01:10:47,148 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-19 01:10:47,148 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-19 01:10:47,151 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-19 01:10:47,151 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.08 01:10:45" (1/3) ... [2020-08-19 01:10:47,152 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@598ec26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.08 01:10:47, skipping insertion in model container [2020-08-19 01:10:47,152 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 01:10:46" (2/3) ... [2020-08-19 01:10:47,153 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@598ec26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.08 01:10:47, skipping insertion in model container [2020-08-19 01:10:47,153 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.08 01:10:47" (3/3) ... [2020-08-19 01:10:47,155 INFO L109 eAbstractionObserver]: Analyzing ICFG quick_sort_split.i [2020-08-19 01:10:47,165 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-19 01:10:47,173 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-08-19 01:10:47,187 INFO L251 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-08-19 01:10:47,211 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-19 01:10:47,211 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-19 01:10:47,212 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-19 01:10:47,212 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-19 01:10:47,213 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-19 01:10:47,213 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-19 01:10:47,213 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-19 01:10:47,213 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-19 01:10:47,228 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states. [2020-08-19 01:10:47,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-08-19 01:10:47,233 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 01:10:47,234 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 01:10:47,235 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 01:10:47,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 01:10:47,240 INFO L82 PathProgramCache]: Analyzing trace with hash 1851020699, now seen corresponding path program 1 times [2020-08-19 01:10:47,248 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 01:10:47,249 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [917244904] [2020-08-19 01:10:47,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 01:10:47,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:10:47,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 01:10:47,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:10:47,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-19 01:10:47,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:10:47,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 01:10:47,491 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [917244904] [2020-08-19 01:10:47,493 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 01:10:47,493 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-19 01:10:47,494 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837410089] [2020-08-19 01:10:47,499 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-19 01:10:47,500 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 01:10:47,514 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-19 01:10:47,515 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-19 01:10:47,517 INFO L87 Difference]: Start difference. First operand 36 states. Second operand 4 states. [2020-08-19 01:10:47,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 01:10:47,720 INFO L93 Difference]: Finished difference Result 57 states and 77 transitions. [2020-08-19 01:10:47,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-19 01:10:47,722 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2020-08-19 01:10:47,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 01:10:47,739 INFO L225 Difference]: With dead ends: 57 [2020-08-19 01:10:47,739 INFO L226 Difference]: Without dead ends: 32 [2020-08-19 01:10:47,744 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 [2020-08-19 01:10:47,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-08-19 01:10:47,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2020-08-19 01:10:47,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-08-19 01:10:47,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 38 transitions. [2020-08-19 01:10:47,822 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 38 transitions. Word has length 16 [2020-08-19 01:10:47,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 01:10:47,822 INFO L479 AbstractCegarLoop]: Abstraction has 32 states and 38 transitions. [2020-08-19 01:10:47,822 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-19 01:10:47,823 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 38 transitions. [2020-08-19 01:10:47,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-08-19 01:10:47,825 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 01:10:47,825 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 01:10:47,826 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-19 01:10:47,826 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 01:10:47,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 01:10:47,826 INFO L82 PathProgramCache]: Analyzing trace with hash 1239240901, now seen corresponding path program 1 times [2020-08-19 01:10:47,827 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 01:10:47,827 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1140412135] [2020-08-19 01:10:47,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 01:10:47,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:10:47,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 01:10:47,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:10:47,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-19 01:10:47,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:10:47,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 01:10:47,951 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1140412135] [2020-08-19 01:10:47,951 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 01:10:47,951 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-19 01:10:47,952 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31210394] [2020-08-19 01:10:47,953 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-19 01:10:47,953 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 01:10:47,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-19 01:10:47,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-08-19 01:10:47,954 INFO L87 Difference]: Start difference. First operand 32 states and 38 transitions. Second operand 5 states. [2020-08-19 01:10:48,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 01:10:48,084 INFO L93 Difference]: Finished difference Result 38 states and 45 transitions. [2020-08-19 01:10:48,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-08-19 01:10:48,085 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-08-19 01:10:48,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 01:10:48,086 INFO L225 Difference]: With dead ends: 38 [2020-08-19 01:10:48,086 INFO L226 Difference]: Without dead ends: 28 [2020-08-19 01:10:48,087 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 [2020-08-19 01:10:48,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-08-19 01:10:48,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2020-08-19 01:10:48,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-08-19 01:10:48,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 33 transitions. [2020-08-19 01:10:48,097 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 33 transitions. Word has length 17 [2020-08-19 01:10:48,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 01:10:48,097 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 33 transitions. [2020-08-19 01:10:48,097 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-19 01:10:48,097 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 33 transitions. [2020-08-19 01:10:48,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-08-19 01:10:48,098 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 01:10:48,099 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 01:10:48,099 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-19 01:10:48,099 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 01:10:48,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 01:10:48,099 INFO L82 PathProgramCache]: Analyzing trace with hash -238280333, now seen corresponding path program 1 times [2020-08-19 01:10:48,100 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 01:10:48,100 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1773656372] [2020-08-19 01:10:48,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 01:10:48,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:10:48,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 01:10:48,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:10:48,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-19 01:10:48,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:10:48,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 01:10:48,178 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1773656372] [2020-08-19 01:10:48,178 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 01:10:48,178 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-19 01:10:48,179 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144712603] [2020-08-19 01:10:48,179 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-19 01:10:48,179 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 01:10:48,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-19 01:10:48,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-08-19 01:10:48,180 INFO L87 Difference]: Start difference. First operand 28 states and 33 transitions. Second operand 5 states. [2020-08-19 01:10:48,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 01:10:48,282 INFO L93 Difference]: Finished difference Result 29 states and 34 transitions. [2020-08-19 01:10:48,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-08-19 01:10:48,282 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-08-19 01:10:48,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 01:10:48,283 INFO L225 Difference]: With dead ends: 29 [2020-08-19 01:10:48,283 INFO L226 Difference]: Without dead ends: 0 [2020-08-19 01:10:48,284 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 [2020-08-19 01:10:48,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-19 01:10:48,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-19 01:10:48,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-19 01:10:48,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-19 01:10:48,285 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-08-19 01:10:48,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 01:10:48,285 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-19 01:10:48,285 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-19 01:10:48,285 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-19 01:10:48,286 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-19 01:10:48,286 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-19 01:10:48,288 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-19 01:10:48,411 INFO L271 CegarLoopResult]: At program point L576(line 576) the Hoare annotation is: true [2020-08-19 01:10:48,411 INFO L271 CegarLoopResult]: At program point L576-1(lines 571 577) the Hoare annotation is: true [2020-08-19 01:10:48,411 INFO L271 CegarLoopResult]: At program point L574(line 574) the Hoare annotation is: true [2020-08-19 01:10:48,411 INFO L268 CegarLoopResult]: For program point L573(lines 573 576) no Hoare annotation was computed. [2020-08-19 01:10:48,412 INFO L268 CegarLoopResult]: For program point L571-1(lines 571 577) no Hoare annotation was computed. [2020-08-19 01:10:48,412 INFO L268 CegarLoopResult]: For program point L571-3(lines 571 577) no Hoare annotation was computed. [2020-08-19 01:10:48,412 INFO L268 CegarLoopResult]: For program point create_listEXIT(lines 569 579) no Hoare annotation was computed. [2020-08-19 01:10:48,412 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|)) [2020-08-19 01:10:48,412 INFO L268 CegarLoopResult]: For program point create_listFINAL(lines 569 579) no Hoare annotation was computed. [2020-08-19 01:10:48,412 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-08-19 01:10:48,413 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|)) [2020-08-19 01:10:48,413 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-08-19 01:10:48,413 INFO L268 CegarLoopResult]: For program point __bswap_32ENTRY(lines 64 68) no Hoare annotation was computed. [2020-08-19 01:10:48,413 INFO L268 CegarLoopResult]: For program point __bswap_32FINAL(lines 64 68) no Hoare annotation was computed. [2020-08-19 01:10:48,413 INFO L268 CegarLoopResult]: For program point __bswap_32EXIT(lines 64 68) no Hoare annotation was computed. [2020-08-19 01:10:48,413 INFO L268 CegarLoopResult]: For program point __bswap_64ENTRY(lines 69 73) no Hoare annotation was computed. [2020-08-19 01:10:48,413 INFO L268 CegarLoopResult]: For program point __bswap_64FINAL(lines 69 73) no Hoare annotation was computed. [2020-08-19 01:10:48,414 INFO L268 CegarLoopResult]: For program point __bswap_64EXIT(lines 69 73) no Hoare annotation was computed. [2020-08-19 01:10:48,414 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-08-19 01:10:48,414 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-08-19 01:10:48,414 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-08-19 01:10:48,414 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-08-19 01:10:48,414 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 580 602) no Hoare annotation was computed. [2020-08-19 01:10:48,414 INFO L268 CegarLoopResult]: For program point L597-1(lines 580 602) no Hoare annotation was computed. [2020-08-19 01:10:48,415 INFO L268 CegarLoopResult]: For program point L597-2(lines 580 602) no Hoare annotation was computed. [2020-08-19 01:10:48,415 INFO L268 CegarLoopResult]: For program point L593(lines 593 594) no Hoare annotation was computed. [2020-08-19 01:10:48,415 INFO L268 CegarLoopResult]: For program point L593-2(lines 593 594) no Hoare annotation was computed. [2020-08-19 01:10:48,415 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)) [2020-08-19 01:10:48,415 INFO L268 CegarLoopResult]: For program point L581(line 581) no Hoare annotation was computed. [2020-08-19 01:10:48,415 INFO L268 CegarLoopResult]: For program point L598(lines 598 599) no Hoare annotation was computed. [2020-08-19 01:10:48,416 INFO L268 CegarLoopResult]: For program point L598-2(lines 598 599) no Hoare annotation was computed. [2020-08-19 01:10:48,416 INFO L268 CegarLoopResult]: For program point L594(line 594) no Hoare annotation was computed. [2020-08-19 01:10:48,416 INFO L268 CegarLoopResult]: For program point L586(line 586) no Hoare annotation was computed. [2020-08-19 01:10:48,416 INFO L268 CegarLoopResult]: For program point L586-2(line 586) no Hoare annotation was computed. [2020-08-19 01:10:48,416 INFO L268 CegarLoopResult]: For program point mainErr1ASSERT_VIOLATIONERROR_FUNCTION(line 599) no Hoare annotation was computed. [2020-08-19 01:10:48,416 INFO L268 CegarLoopResult]: For program point L599(line 599) no Hoare annotation was computed. [2020-08-19 01:10:48,417 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 594) no Hoare annotation was computed. [2020-08-19 01:10:48,417 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|)) [2020-08-19 01:10:48,417 INFO L268 CegarLoopResult]: For program point L592-1(lines 580 602) no Hoare annotation was computed. [2020-08-19 01:10:48,417 INFO L268 CegarLoopResult]: For program point append_to_listEXIT(lines 562 568) no Hoare annotation was computed. [2020-08-19 01:10:48,417 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|)) [2020-08-19 01:10:48,417 INFO L268 CegarLoopResult]: For program point append_to_listFINAL(lines 562 568) no Hoare annotation was computed. [2020-08-19 01:10:48,436 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.08 01:10:48 BoogieIcfgContainer [2020-08-19 01:10:48,436 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-19 01:10:48,439 INFO L168 Benchmark]: Toolchain (without parser) took 2656.82 ms. Allocated memory was 145.2 MB in the beginning and 232.3 MB in the end (delta: 87.0 MB). Free memory was 99.8 MB in the beginning and 125.7 MB in the end (delta: -25.9 MB). Peak memory consumption was 61.2 MB. Max. memory is 7.1 GB. [2020-08-19 01:10:48,440 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 145.2 MB. Free memory was 119.8 MB in the beginning and 119.6 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-08-19 01:10:48,441 INFO L168 Benchmark]: CACSL2BoogieTranslator took 678.33 ms. Allocated memory was 145.2 MB in the beginning and 201.3 MB in the end (delta: 56.1 MB). Free memory was 99.6 MB in the beginning and 166.4 MB in the end (delta: -66.7 MB). Peak memory consumption was 19.9 MB. Max. memory is 7.1 GB. [2020-08-19 01:10:48,442 INFO L168 Benchmark]: Boogie Preprocessor took 72.32 ms. Allocated memory is still 201.3 MB. Free memory was 166.4 MB in the beginning and 163.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2020-08-19 01:10:48,443 INFO L168 Benchmark]: RCFGBuilder took 612.93 ms. Allocated memory is still 201.3 MB. Free memory was 163.6 MB in the beginning and 117.4 MB in the end (delta: 46.2 MB). Peak memory consumption was 46.2 MB. Max. memory is 7.1 GB. [2020-08-19 01:10:48,444 INFO L168 Benchmark]: TraceAbstraction took 1288.12 ms. Allocated memory was 201.3 MB in the beginning and 232.3 MB in the end (delta: 30.9 MB). Free memory was 116.7 MB in the beginning and 125.7 MB in the end (delta: -9.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 7.1 GB. [2020-08-19 01:10:48,448 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 145.2 MB. Free memory was 119.8 MB in the beginning and 119.6 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 678.33 ms. Allocated memory was 145.2 MB in the beginning and 201.3 MB in the end (delta: 56.1 MB). Free memory was 99.6 MB in the beginning and 166.4 MB in the end (delta: -66.7 MB). Peak memory consumption was 19.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 72.32 ms. Allocated memory is still 201.3 MB. Free memory was 166.4 MB in the beginning and 163.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 612.93 ms. Allocated memory is still 201.3 MB. Free memory was 163.6 MB in the beginning and 117.4 MB in the end (delta: 46.2 MB). Peak memory consumption was 46.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1288.12 ms. Allocated memory was 201.3 MB in the beginning and 232.3 MB in the end (delta: 30.9 MB). Free memory was 116.7 MB in the beginning and 125.7 MB in the end (delta: -9.0 MB). Peak memory consumption was 22.0 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: 1.0s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.4s, 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, 0.1s 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, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s 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...