java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/heap-data/min_max.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 00:11:23,431 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 00:11:23,434 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 00:11:23,446 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 00:11:23,447 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 00:11:23,448 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 00:11:23,449 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 00:11:23,451 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 00:11:23,453 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 00:11:23,454 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 00:11:23,455 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 00:11:23,456 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 00:11:23,457 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 00:11:23,458 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 00:11:23,459 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 00:11:23,460 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 00:11:23,461 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 00:11:23,462 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 00:11:23,464 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 00:11:23,466 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 00:11:23,468 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 00:11:23,469 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 00:11:23,470 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 00:11:23,471 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 00:11:23,473 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 00:11:23,473 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 00:11:23,474 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 00:11:23,475 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 00:11:23,475 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 00:11:23,476 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 00:11:23,476 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 00:11:23,477 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 00:11:23,478 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 00:11:23,479 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 00:11:23,480 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 00:11:23,480 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 00:11:23,481 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 00:11:23,481 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 00:11:23,481 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 00:11:23,482 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 00:11:23,483 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 00:11:23,484 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-15 00:11:23,498 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 00:11:23,499 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 00:11:23,500 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 00:11:23,500 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 00:11:23,500 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 00:11:23,501 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 00:11:23,501 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 00:11:23,501 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 00:11:23,501 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 00:11:23,502 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 00:11:23,502 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 00:11:23,502 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 00:11:23,502 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 00:11:23,502 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 00:11:23,503 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 00:11:23,503 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 00:11:23,503 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 00:11:23,503 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 00:11:23,503 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 00:11:23,504 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 00:11:23,504 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 00:11:23,504 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 00:11:23,504 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 00:11:23,504 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 00:11:23,505 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 00:11:23,505 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 00:11:23,505 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 00:11:23,505 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 00:11:23,505 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-15 00:11:23,790 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 00:11:23,803 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 00:11:23,806 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 00:11:23,808 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 00:11:23,808 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 00:11:23,809 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/heap-data/min_max.i [2019-10-15 00:11:23,867 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/763379f14/b6a5872f7834421cb1d693092bb111df/FLAGa5d32efbb [2019-10-15 00:11:24,351 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 00:11:24,353 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/heap-data/min_max.i [2019-10-15 00:11:24,372 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/763379f14/b6a5872f7834421cb1d693092bb111df/FLAGa5d32efbb [2019-10-15 00:11:24,666 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/763379f14/b6a5872f7834421cb1d693092bb111df [2019-10-15 00:11:24,677 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 00:11:24,679 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 00:11:24,680 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 00:11:24,680 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 00:11:24,684 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 00:11:24,685 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 12:11:24" (1/1) ... [2019-10-15 00:11:24,688 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d8dadd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:11:24, skipping insertion in model container [2019-10-15 00:11:24,689 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 12:11:24" (1/1) ... [2019-10-15 00:11:24,697 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 00:11:24,759 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 00:11:25,219 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 00:11:25,233 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 00:11:25,281 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 00:11:25,337 INFO L192 MainTranslator]: Completed translation [2019-10-15 00:11:25,338 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:11:25 WrapperNode [2019-10-15 00:11:25,338 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 00:11:25,339 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 00:11:25,339 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 00:11:25,339 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 00:11:25,353 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:11:25" (1/1) ... [2019-10-15 00:11:25,353 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:11:25" (1/1) ... [2019-10-15 00:11:25,390 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:11:25" (1/1) ... [2019-10-15 00:11:25,391 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:11:25" (1/1) ... [2019-10-15 00:11:25,412 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:11:25" (1/1) ... [2019-10-15 00:11:25,425 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:11:25" (1/1) ... [2019-10-15 00:11:25,429 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:11:25" (1/1) ... [2019-10-15 00:11:25,437 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 00:11:25,439 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 00:11:25,439 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 00:11:25,439 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 00:11:25,442 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:11:25" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 00:11:25,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 00:11:25,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 00:11:25,504 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-10-15 00:11:25,504 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-10-15 00:11:25,504 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 00:11:25,505 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 00:11:25,505 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 00:11:25,505 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-10-15 00:11:25,505 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-10-15 00:11:25,505 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-10-15 00:11:25,505 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-10-15 00:11:25,505 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-10-15 00:11:25,506 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-10-15 00:11:25,506 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-10-15 00:11:25,506 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-10-15 00:11:25,506 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-10-15 00:11:25,506 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-10-15 00:11:25,506 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-10-15 00:11:25,507 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-10-15 00:11:25,507 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-10-15 00:11:25,507 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-10-15 00:11:25,507 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-10-15 00:11:25,507 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-10-15 00:11:25,507 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-10-15 00:11:25,508 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-10-15 00:11:25,508 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-10-15 00:11:25,508 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-10-15 00:11:25,508 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-10-15 00:11:25,508 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-10-15 00:11:25,508 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-10-15 00:11:25,509 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-10-15 00:11:25,509 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-10-15 00:11:25,509 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-10-15 00:11:25,509 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-10-15 00:11:25,509 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-10-15 00:11:25,509 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-10-15 00:11:25,510 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-10-15 00:11:25,510 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-10-15 00:11:25,510 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-10-15 00:11:25,510 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-10-15 00:11:25,510 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-10-15 00:11:25,510 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-10-15 00:11:25,511 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-10-15 00:11:25,511 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-10-15 00:11:25,511 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-10-15 00:11:25,511 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-10-15 00:11:25,511 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-10-15 00:11:25,511 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-10-15 00:11:25,511 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-10-15 00:11:25,512 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-10-15 00:11:25,512 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-10-15 00:11:25,512 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-10-15 00:11:25,512 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-10-15 00:11:25,512 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-10-15 00:11:25,512 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-10-15 00:11:25,513 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-10-15 00:11:25,513 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-10-15 00:11:25,513 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-10-15 00:11:25,513 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-10-15 00:11:25,513 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 00:11:25,513 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-15 00:11:25,514 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-10-15 00:11:25,514 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 00:11:25,514 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-10-15 00:11:25,514 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-10-15 00:11:25,514 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-10-15 00:11:25,514 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-10-15 00:11:25,514 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-10-15 00:11:25,515 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-10-15 00:11:25,515 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-10-15 00:11:25,515 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-10-15 00:11:25,516 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-10-15 00:11:25,517 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-15 00:11:25,518 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-10-15 00:11:25,518 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-10-15 00:11:25,518 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-10-15 00:11:25,518 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-10-15 00:11:25,519 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-10-15 00:11:25,519 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-10-15 00:11:25,520 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-10-15 00:11:25,520 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-10-15 00:11:25,520 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-10-15 00:11:25,521 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-10-15 00:11:25,521 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-10-15 00:11:25,521 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-10-15 00:11:25,522 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-10-15 00:11:25,522 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-10-15 00:11:25,523 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-10-15 00:11:25,523 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-10-15 00:11:25,523 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-10-15 00:11:25,523 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-10-15 00:11:25,523 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-10-15 00:11:25,524 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-10-15 00:11:25,524 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-10-15 00:11:25,524 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-10-15 00:11:25,524 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-10-15 00:11:25,524 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-10-15 00:11:25,524 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-10-15 00:11:25,524 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-10-15 00:11:25,525 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-10-15 00:11:25,525 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-10-15 00:11:25,525 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-10-15 00:11:25,525 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-10-15 00:11:25,525 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-10-15 00:11:25,525 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-10-15 00:11:25,525 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-10-15 00:11:25,526 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-10-15 00:11:25,526 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-10-15 00:11:25,526 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-10-15 00:11:25,526 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-10-15 00:11:25,526 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-10-15 00:11:25,526 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-10-15 00:11:25,526 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 00:11:25,526 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 00:11:25,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 00:11:25,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 00:11:25,527 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 00:11:25,527 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 00:11:25,528 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 00:11:25,528 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 00:11:25,528 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 00:11:26,043 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 00:11:26,044 INFO L284 CfgBuilder]: Removed 2 assume(true) statements. [2019-10-15 00:11:26,045 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 12:11:26 BoogieIcfgContainer [2019-10-15 00:11:26,045 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 00:11:26,047 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 00:11:26,047 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 00:11:26,050 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 00:11:26,051 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 12:11:24" (1/3) ... [2019-10-15 00:11:26,052 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5227747b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 12:11:26, skipping insertion in model container [2019-10-15 00:11:26,052 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:11:25" (2/3) ... [2019-10-15 00:11:26,052 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5227747b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 12:11:26, skipping insertion in model container [2019-10-15 00:11:26,052 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 12:11:26" (3/3) ... [2019-10-15 00:11:26,054 INFO L109 eAbstractionObserver]: Analyzing ICFG min_max.i [2019-10-15 00:11:26,065 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 00:11:26,073 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-10-15 00:11:26,086 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-10-15 00:11:26,113 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 00:11:26,113 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 00:11:26,113 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 00:11:26,113 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 00:11:26,114 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 00:11:26,114 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 00:11:26,114 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 00:11:26,114 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 00:11:26,134 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2019-10-15 00:11:26,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-10-15 00:11:26,141 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:11:26,142 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 00:11:26,144 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:11:26,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:11:26,151 INFO L82 PathProgramCache]: Analyzing trace with hash -1192142104, now seen corresponding path program 1 times [2019-10-15 00:11:26,161 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:11:26,162 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86120773] [2019-10-15 00:11:26,162 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:11:26,162 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:11:26,163 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:11:26,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:11:26,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 00:11:26,307 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86120773] [2019-10-15 00:11:26,307 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:11:26,308 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 00:11:26,309 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017160020] [2019-10-15 00:11:26,313 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 00:11:26,315 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:11:26,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 00:11:26,328 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 00:11:26,330 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 2 states. [2019-10-15 00:11:26,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:11:26,347 INFO L93 Difference]: Finished difference Result 39 states and 49 transitions. [2019-10-15 00:11:26,347 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 00:11:26,348 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2019-10-15 00:11:26,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:11:26,355 INFO L225 Difference]: With dead ends: 39 [2019-10-15 00:11:26,356 INFO L226 Difference]: Without dead ends: 21 [2019-10-15 00:11:26,359 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 00:11:26,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-10-15 00:11:26,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2019-10-15 00:11:26,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-10-15 00:11:26,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 24 transitions. [2019-10-15 00:11:26,396 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 24 transitions. Word has length 11 [2019-10-15 00:11:26,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:11:26,396 INFO L462 AbstractCegarLoop]: Abstraction has 21 states and 24 transitions. [2019-10-15 00:11:26,397 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 00:11:26,397 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2019-10-15 00:11:26,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-10-15 00:11:26,398 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:11:26,398 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 00:11:26,398 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:11:26,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:11:26,399 INFO L82 PathProgramCache]: Analyzing trace with hash 1107899532, now seen corresponding path program 1 times [2019-10-15 00:11:26,399 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:11:26,399 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092794831] [2019-10-15 00:11:26,400 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:11:26,400 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:11:26,400 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:11:26,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:11:26,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 00:11:26,529 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092794831] [2019-10-15 00:11:26,529 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:11:26,529 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-15 00:11:26,529 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957241787] [2019-10-15 00:11:26,531 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-15 00:11:26,532 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:11:26,532 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-15 00:11:26,532 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-15 00:11:26,533 INFO L87 Difference]: Start difference. First operand 21 states and 24 transitions. Second operand 4 states. [2019-10-15 00:11:26,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:11:26,593 INFO L93 Difference]: Finished difference Result 34 states and 38 transitions. [2019-10-15 00:11:26,594 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-15 00:11:26,595 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2019-10-15 00:11:26,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:11:26,596 INFO L225 Difference]: With dead ends: 34 [2019-10-15 00:11:26,597 INFO L226 Difference]: Without dead ends: 23 [2019-10-15 00:11:26,598 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-15 00:11:26,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2019-10-15 00:11:26,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2019-10-15 00:11:26,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-10-15 00:11:26,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 26 transitions. [2019-10-15 00:11:26,607 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 26 transitions. Word has length 12 [2019-10-15 00:11:26,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:11:26,607 INFO L462 AbstractCegarLoop]: Abstraction has 23 states and 26 transitions. [2019-10-15 00:11:26,607 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-15 00:11:26,608 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2019-10-15 00:11:26,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-10-15 00:11:26,609 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:11:26,609 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 00:11:26,610 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:11:26,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:11:26,610 INFO L82 PathProgramCache]: Analyzing trace with hash 897845277, now seen corresponding path program 1 times [2019-10-15 00:11:26,611 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:11:26,611 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920240442] [2019-10-15 00:11:26,611 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:11:26,611 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:11:26,612 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:11:26,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:11:26,847 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 00:11:26,847 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920240442] [2019-10-15 00:11:26,847 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:11:26,847 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-15 00:11:26,848 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195323907] [2019-10-15 00:11:26,848 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 00:11:26,848 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:11:26,849 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 00:11:26,849 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-15 00:11:26,849 INFO L87 Difference]: Start difference. First operand 23 states and 26 transitions. Second operand 7 states. [2019-10-15 00:11:26,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:11:26,996 INFO L93 Difference]: Finished difference Result 32 states and 35 transitions. [2019-10-15 00:11:26,997 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-15 00:11:26,998 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 17 [2019-10-15 00:11:26,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:11:26,999 INFO L225 Difference]: With dead ends: 32 [2019-10-15 00:11:26,999 INFO L226 Difference]: Without dead ends: 30 [2019-10-15 00:11:26,999 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2019-10-15 00:11:27,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2019-10-15 00:11:27,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 25. [2019-10-15 00:11:27,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-10-15 00:11:27,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 28 transitions. [2019-10-15 00:11:27,009 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 28 transitions. Word has length 17 [2019-10-15 00:11:27,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:11:27,011 INFO L462 AbstractCegarLoop]: Abstraction has 25 states and 28 transitions. [2019-10-15 00:11:27,011 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 00:11:27,011 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2019-10-15 00:11:27,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-10-15 00:11:27,013 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:11:27,014 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 00:11:27,014 INFO L410 AbstractCegarLoop]: === Iteration 4 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:11:27,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:11:27,015 INFO L82 PathProgramCache]: Analyzing trace with hash -458989665, now seen corresponding path program 1 times [2019-10-15 00:11:27,015 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:11:27,015 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627062292] [2019-10-15 00:11:27,016 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:11:27,016 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:11:27,016 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:11:27,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:11:27,252 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 00:11:27,252 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627062292] [2019-10-15 00:11:27,253 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:11:27,253 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-15 00:11:27,253 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294701949] [2019-10-15 00:11:27,253 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-15 00:11:27,254 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:11:27,254 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-15 00:11:27,254 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-10-15 00:11:27,255 INFO L87 Difference]: Start difference. First operand 25 states and 28 transitions. Second operand 8 states. [2019-10-15 00:11:27,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:11:27,473 INFO L93 Difference]: Finished difference Result 44 states and 48 transitions. [2019-10-15 00:11:27,474 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-15 00:11:27,474 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 19 [2019-10-15 00:11:27,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:11:27,476 INFO L225 Difference]: With dead ends: 44 [2019-10-15 00:11:27,476 INFO L226 Difference]: Without dead ends: 42 [2019-10-15 00:11:27,479 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2019-10-15 00:11:27,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2019-10-15 00:11:27,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 32. [2019-10-15 00:11:27,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2019-10-15 00:11:27,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 36 transitions. [2019-10-15 00:11:27,492 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 36 transitions. Word has length 19 [2019-10-15 00:11:27,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:11:27,494 INFO L462 AbstractCegarLoop]: Abstraction has 32 states and 36 transitions. [2019-10-15 00:11:27,495 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-15 00:11:27,495 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 36 transitions. [2019-10-15 00:11:27,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-10-15 00:11:27,496 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:11:27,496 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 00:11:27,496 INFO L410 AbstractCegarLoop]: === Iteration 5 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:11:27,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:11:27,497 INFO L82 PathProgramCache]: Analyzing trace with hash 221068705, now seen corresponding path program 1 times [2019-10-15 00:11:27,497 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:11:27,497 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071344463] [2019-10-15 00:11:27,498 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:11:27,498 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:11:27,498 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:11:27,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:11:27,716 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 00:11:27,717 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071344463] [2019-10-15 00:11:27,717 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:11:27,717 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-15 00:11:27,717 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710772962] [2019-10-15 00:11:27,718 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-15 00:11:27,718 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:11:27,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-15 00:11:27,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-15 00:11:27,719 INFO L87 Difference]: Start difference. First operand 32 states and 36 transitions. Second operand 9 states. [2019-10-15 00:11:27,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:11:27,930 INFO L93 Difference]: Finished difference Result 37 states and 41 transitions. [2019-10-15 00:11:27,930 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-15 00:11:27,930 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 19 [2019-10-15 00:11:27,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:11:27,932 INFO L225 Difference]: With dead ends: 37 [2019-10-15 00:11:27,932 INFO L226 Difference]: Without dead ends: 35 [2019-10-15 00:11:27,932 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2019-10-15 00:11:27,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2019-10-15 00:11:27,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 27. [2019-10-15 00:11:27,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-10-15 00:11:27,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 30 transitions. [2019-10-15 00:11:27,940 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 30 transitions. Word has length 19 [2019-10-15 00:11:27,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:11:27,941 INFO L462 AbstractCegarLoop]: Abstraction has 27 states and 30 transitions. [2019-10-15 00:11:27,941 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-15 00:11:27,941 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 30 transitions. [2019-10-15 00:11:27,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-10-15 00:11:27,942 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:11:27,942 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 00:11:27,942 INFO L410 AbstractCegarLoop]: === Iteration 6 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:11:27,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:11:27,943 INFO L82 PathProgramCache]: Analyzing trace with hash 1418643305, now seen corresponding path program 1 times [2019-10-15 00:11:27,943 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:11:27,943 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413689146] [2019-10-15 00:11:27,944 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:11:27,944 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:11:27,944 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:11:27,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:11:28,055 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 00:11:28,056 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413689146] [2019-10-15 00:11:28,057 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [846361679] [2019-10-15 00:11:28,057 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 00:11:28,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:11:28,179 INFO L256 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 19 conjunts are in the unsatisfiable core [2019-10-15 00:11:28,186 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 00:11:28,253 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2019-10-15 00:11:28,254 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-15 00:11:28,269 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 00:11:28,272 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2019-10-15 00:11:28,272 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-15 00:11:28,276 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 00:11:28,277 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-15 00:11:28,277 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:23, output treesize:15 [2019-10-15 00:11:28,304 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2019-10-15 00:11:28,305 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-15 00:11:28,316 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 00:11:28,319 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2019-10-15 00:11:28,320 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-15 00:11:28,333 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 00:11:28,333 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-15 00:11:28,333 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:7 [2019-10-15 00:11:28,337 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 00:11:28,337 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 00:11:28,357 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 00:11:28,358 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [666069394] [2019-10-15 00:11:28,364 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 23 [2019-10-15 00:11:28,403 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-15 00:11:28,403 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-15 00:11:28,537 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-15 00:11:28,541 INFO L272 AbstractInterpreter]: Visited 11 different actions 11 times. Never merged. Never widened. Performed 29 root evaluator evaluations with a maximum evaluation depth of 7. Performed 29 inverse root evaluator evaluations with a maximum inverse evaluation depth of 7. Never found a fixpoint. Largest state had 36 variables. [2019-10-15 00:11:28,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:11:28,546 INFO L536 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-15 00:11:28,618 INFO L227 lantSequenceWeakener]: Weakened 11 states. On average, predicates are now at 69.9% of their original sizes. [2019-10-15 00:11:28,619 INFO L551 sIntCurrentIteration]: Unifying AI predicates [2019-10-15 00:11:28,640 INFO L553 sIntCurrentIteration]: We unified 21 AI predicates to 21 [2019-10-15 00:11:28,641 INFO L562 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-15 00:11:28,641 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-10-15 00:11:28,642 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7, 6, 6] total 11 [2019-10-15 00:11:28,642 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989508818] [2019-10-15 00:11:28,643 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-15 00:11:28,644 INFO L137 tionRefinementEngine]: Using predicate unifier AbsIntPredicateUnifier provided by strategy TAIPAN [2019-10-15 00:11:28,644 INFO L124 tionRefinementEngine]: Using hoare triple checker CachingHoareTripleCheckerMap provided by strategy [2019-10-15 00:11:28,644 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-15 00:11:28,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-15 00:11:28,645 INFO L87 Difference]: Start difference. First operand 27 states and 30 transitions. Second operand 6 states. [2019-10-15 00:11:28,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:11:28,653 INFO L93 Difference]: Finished difference Result 27 states and 30 transitions. [2019-10-15 00:11:28,653 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-15 00:11:28,653 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 22 [2019-10-15 00:11:28,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:11:28,654 INFO L225 Difference]: With dead ends: 27 [2019-10-15 00:11:28,654 INFO L226 Difference]: Without dead ends: 0 [2019-10-15 00:11:28,655 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-15 00:11:28,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-15 00:11:28,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-15 00:11:28,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-15 00:11:28,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-15 00:11:28,656 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2019-10-15 00:11:28,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:11:28,656 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-15 00:11:28,656 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-15 00:11:28,656 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-15 00:11:28,656 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-15 00:11:28,860 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 00:11:28,865 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-15 00:11:28,926 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-10-15 00:11:28,927 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-10-15 00:11:28,927 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-15 00:11:28,927 INFO L443 ceAbstractionStarter]: For program point __bswap_32ENTRY(lines 64 68) no Hoare annotation was computed. [2019-10-15 00:11:28,927 INFO L443 ceAbstractionStarter]: For program point __bswap_32FINAL(lines 64 68) no Hoare annotation was computed. [2019-10-15 00:11:28,927 INFO L443 ceAbstractionStarter]: For program point __bswap_32EXIT(lines 64 68) no Hoare annotation was computed. [2019-10-15 00:11:28,927 INFO L443 ceAbstractionStarter]: For program point __bswap_64ENTRY(lines 69 73) no Hoare annotation was computed. [2019-10-15 00:11:28,927 INFO L443 ceAbstractionStarter]: For program point __bswap_64FINAL(lines 69 73) no Hoare annotation was computed. [2019-10-15 00:11:28,927 INFO L443 ceAbstractionStarter]: For program point __bswap_64EXIT(lines 69 73) no Hoare annotation was computed. [2019-10-15 00:11:28,927 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-15 00:11:28,928 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-10-15 00:11:28,928 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-15 00:11:28,928 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-15 00:11:28,928 INFO L439 ceAbstractionStarter]: At program point L576-2(lines 576 582) the Hoare annotation is: (and (= 0 main_~l~0.base) (= 0 main_~l~0.offset) (= 0 main_~i~0.base) (= 0 main_~i~0.offset)) [2019-10-15 00:11:28,928 INFO L443 ceAbstractionStarter]: For program point L576-3(lines 561 583) no Hoare annotation was computed. [2019-10-15 00:11:28,928 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 561 583) no Hoare annotation was computed. [2019-10-15 00:11:28,928 INFO L443 ceAbstractionStarter]: For program point L568(lines 568 570) no Hoare annotation was computed. [2019-10-15 00:11:28,928 INFO L443 ceAbstractionStarter]: For program point L568-2(lines 568 570) no Hoare annotation was computed. [2019-10-15 00:11:28,929 INFO L443 ceAbstractionStarter]: For program point L564-1(lines 564 574) no Hoare annotation was computed. [2019-10-15 00:11:28,929 INFO L443 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 578) no Hoare annotation was computed. [2019-10-15 00:11:28,929 INFO L443 ceAbstractionStarter]: For program point L564-3(lines 564 574) no Hoare annotation was computed. [2019-10-15 00:11:28,929 INFO L443 ceAbstractionStarter]: For program point L577(lines 577 578) no Hoare annotation was computed. [2019-10-15 00:11:28,929 INFO L443 ceAbstractionStarter]: For program point L577-2(lines 577 578) no Hoare annotation was computed. [2019-10-15 00:11:28,929 INFO L443 ceAbstractionStarter]: For program point mainErr1ASSERT_VIOLATIONERROR_FUNCTION(line 580) no Hoare annotation was computed. [2019-10-15 00:11:28,929 INFO L443 ceAbstractionStarter]: For program point L578(line 578) no Hoare annotation was computed. [2019-10-15 00:11:28,929 INFO L443 ceAbstractionStarter]: For program point L579(lines 579 580) no Hoare annotation was computed. [2019-10-15 00:11:28,930 INFO L443 ceAbstractionStarter]: For program point L579-2(lines 579 580) no Hoare annotation was computed. [2019-10-15 00:11:28,930 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 561 583) the Hoare annotation is: true [2019-10-15 00:11:28,930 INFO L443 ceAbstractionStarter]: For program point L571(lines 571 573) no Hoare annotation was computed. [2019-10-15 00:11:28,931 INFO L439 ceAbstractionStarter]: At program point L571-2(lines 564 574) the Hoare annotation is: (and (= 0 main_~l~0.base) (= main_~l~0.offset 0) (= (+ main_~max~0 2147483647) 0) (= main_~min~0 2147483647)) [2019-10-15 00:11:28,931 INFO L443 ceAbstractionStarter]: For program point L580(line 580) no Hoare annotation was computed. [2019-10-15 00:11:28,944 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 12:11:28 BoogieIcfgContainer [2019-10-15 00:11:28,944 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-15 00:11:28,946 INFO L168 Benchmark]: Toolchain (without parser) took 4267.23 ms. Allocated memory was 143.7 MB in the beginning and 252.2 MB in the end (delta: 108.5 MB). Free memory was 100.5 MB in the beginning and 165.1 MB in the end (delta: -64.6 MB). Peak memory consumption was 43.9 MB. Max. memory is 7.1 GB. [2019-10-15 00:11:28,947 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 143.7 MB. Free memory was 120.0 MB in the beginning and 119.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-15 00:11:28,948 INFO L168 Benchmark]: CACSL2BoogieTranslator took 658.15 ms. Allocated memory was 143.7 MB in the beginning and 200.8 MB in the end (delta: 57.1 MB). Free memory was 100.3 MB in the beginning and 167.3 MB in the end (delta: -67.0 MB). Peak memory consumption was 19.9 MB. Max. memory is 7.1 GB. [2019-10-15 00:11:28,949 INFO L168 Benchmark]: Boogie Preprocessor took 99.63 ms. Allocated memory is still 200.8 MB. Free memory was 167.3 MB in the beginning and 164.5 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 7.1 GB. [2019-10-15 00:11:28,950 INFO L168 Benchmark]: RCFGBuilder took 607.00 ms. Allocated memory is still 200.8 MB. Free memory was 164.5 MB in the beginning and 124.3 MB in the end (delta: 40.1 MB). Peak memory consumption was 40.1 MB. Max. memory is 7.1 GB. [2019-10-15 00:11:28,950 INFO L168 Benchmark]: TraceAbstraction took 2897.47 ms. Allocated memory was 200.8 MB in the beginning and 252.2 MB in the end (delta: 51.4 MB). Free memory was 124.3 MB in the beginning and 165.1 MB in the end (delta: -40.8 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2019-10-15 00:11:28,954 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 143.7 MB. Free memory was 120.0 MB in the beginning and 119.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 658.15 ms. Allocated memory was 143.7 MB in the beginning and 200.8 MB in the end (delta: 57.1 MB). Free memory was 100.3 MB in the beginning and 167.3 MB in the end (delta: -67.0 MB). Peak memory consumption was 19.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 99.63 ms. Allocated memory is still 200.8 MB. Free memory was 167.3 MB in the beginning and 164.5 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 607.00 ms. Allocated memory is still 200.8 MB. Free memory was 164.5 MB in the beginning and 124.3 MB in the end (delta: 40.1 MB). Peak memory consumption was 40.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2897.47 ms. Allocated memory was 200.8 MB in the beginning and 252.2 MB in the end (delta: 51.4 MB). Free memory was 124.3 MB in the beginning and 165.1 MB in the end (delta: -40.8 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 580]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 578]: 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: 576]: Loop Invariant Derived loop invariant: ((0 == l && 0 == l) && 0 == i) && 0 == i - InvariantResult [Line: 564]: Loop Invariant Derived loop invariant: ((0 == l && l == 0) && max + 2147483647 == 0) && min == 2147483647 - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 31 locations, 2 error locations. Result: SAFE, OverallTime: 2.8s, OverallIterations: 6, TraceHistogramMax: 2, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 101 SDtfs, 91 SDslu, 232 SDs, 0 SdLazy, 228 SolverSat, 26 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 67 GetRequests, 29 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred in iteration=4, 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, 6 MinimizatonAttempts, 23 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 8 NumberOfFragments, 32 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 6 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 122 NumberOfCodeBlocks, 122 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 136 ConstructedInterpolants, 0 QuantifiedInterpolants, 18904 SizeOfPredicates, 8 NumberOfNonLiveVariables, 99 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 8 InterpolantComputations, 5 PerfectInterpolantSequences, 9/18 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: TIME[ms]: 183, ITERATIONS: 1, WAS_STRONG: 1, WEAKENING_RATIO: 0.9044973544973546, AVG_VARS_REMOVED_DURING_WEAKENING: 1.0, AVG_WEAKENED_CONJUNCTS: 1.8571428571428572, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...