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 --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/forester-heap/sll-rb-cnstr_1-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 01:59:08,381 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 01:59:08,384 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 01:59:08,403 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 01:59:08,404 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 01:59:08,406 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 01:59:08,408 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 01:59:08,420 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 01:59:08,423 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 01:59:08,423 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 01:59:08,425 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 01:59:08,426 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 01:59:08,426 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 01:59:08,430 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 01:59:08,433 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 01:59:08,435 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 01:59:08,436 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 01:59:08,439 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 01:59:08,441 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 01:59:08,447 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 01:59:08,452 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 01:59:08,453 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 01:59:08,454 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 01:59:08,455 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 01:59:08,458 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 01:59:08,458 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 01:59:08,458 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 01:59:08,460 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 01:59:08,461 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 01:59:08,463 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 01:59:08,463 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 01:59:08,465 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 01:59:08,466 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 01:59:08,466 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 01:59:08,468 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 01:59:08,468 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 01:59:08,469 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 01:59:08,469 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 01:59:08,469 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 01:59:08,471 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 01:59:08,475 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 01:59:08,476 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 01:59:08,493 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 01:59:08,494 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 01:59:08,496 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 01:59:08,497 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 01:59:08,497 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 01:59:08,497 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 01:59:08,497 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 01:59:08,498 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 01:59:08,498 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 01:59:08,498 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 01:59:08,499 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 01:59:08,500 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 01:59:08,500 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 01:59:08,500 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 01:59:08,500 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 01:59:08,501 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 01:59:08,501 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 01:59:08,501 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 01:59:08,501 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 01:59:08,502 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 01:59:08,502 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 01:59:08,502 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:59:08,502 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 01:59:08,502 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 01:59:08,503 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 01:59:08,503 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 01:59:08,503 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 01:59:08,503 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 01:59:08,503 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-15 01:59:08,836 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 01:59:08,859 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 01:59:08,863 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 01:59:08,865 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 01:59:08,865 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 01:59:08,866 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/sll-rb-cnstr_1-1.i [2019-10-15 01:59:08,930 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/838cb9739/42e8d31b7fa54c9fbed6597a6724a814/FLAGa598bde94 [2019-10-15 01:59:09,502 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 01:59:09,503 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/sll-rb-cnstr_1-1.i [2019-10-15 01:59:09,520 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/838cb9739/42e8d31b7fa54c9fbed6597a6724a814/FLAGa598bde94 [2019-10-15 01:59:09,822 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/838cb9739/42e8d31b7fa54c9fbed6597a6724a814 [2019-10-15 01:59:09,832 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 01:59:09,833 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 01:59:09,834 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 01:59:09,835 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 01:59:09,838 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 01:59:09,839 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:59:09" (1/1) ... [2019-10-15 01:59:09,842 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20190d68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:59:09, skipping insertion in model container [2019-10-15 01:59:09,842 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:59:09" (1/1) ... [2019-10-15 01:59:09,848 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 01:59:09,888 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 01:59:10,315 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:59:10,326 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 01:59:10,371 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:59:10,428 INFO L192 MainTranslator]: Completed translation [2019-10-15 01:59:10,428 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:59:10 WrapperNode [2019-10-15 01:59:10,428 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 01:59:10,429 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 01:59:10,429 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 01:59:10,430 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 01:59:10,445 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:59:10" (1/1) ... [2019-10-15 01:59:10,445 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:59:10" (1/1) ... [2019-10-15 01:59:10,464 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:59:10" (1/1) ... [2019-10-15 01:59:10,464 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:59:10" (1/1) ... [2019-10-15 01:59:10,483 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:59:10" (1/1) ... [2019-10-15 01:59:10,494 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:59:10" (1/1) ... [2019-10-15 01:59:10,502 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:59:10" (1/1) ... [2019-10-15 01:59:10,509 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 01:59:10,509 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 01:59:10,510 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 01:59:10,510 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 01:59:10,511 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:59:10" (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 01:59:10,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 01:59:10,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 01:59:10,570 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 01:59:10,570 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-10-15 01:59:10,570 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-10-15 01:59:10,570 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-10-15 01:59:10,570 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-10-15 01:59:10,571 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-10-15 01:59:10,571 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-10-15 01:59:10,571 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-10-15 01:59:10,571 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-10-15 01:59:10,571 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-10-15 01:59:10,571 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-10-15 01:59:10,572 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-10-15 01:59:10,572 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-10-15 01:59:10,572 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-10-15 01:59:10,572 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-10-15 01:59:10,572 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-10-15 01:59:10,572 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-10-15 01:59:10,573 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-10-15 01:59:10,573 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-10-15 01:59:10,573 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-10-15 01:59:10,573 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-10-15 01:59:10,573 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-10-15 01:59:10,573 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-10-15 01:59:10,574 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-10-15 01:59:10,574 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-10-15 01:59:10,574 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-10-15 01:59:10,574 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-10-15 01:59:10,574 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-10-15 01:59:10,574 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-10-15 01:59:10,575 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-10-15 01:59:10,575 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-10-15 01:59:10,575 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-10-15 01:59:10,575 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-10-15 01:59:10,575 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-10-15 01:59:10,575 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-10-15 01:59:10,576 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-10-15 01:59:10,576 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-10-15 01:59:10,576 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-10-15 01:59:10,576 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-10-15 01:59:10,576 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-10-15 01:59:10,576 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-10-15 01:59:10,576 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-10-15 01:59:10,577 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-10-15 01:59:10,577 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-10-15 01:59:10,577 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-10-15 01:59:10,577 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-10-15 01:59:10,577 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-10-15 01:59:10,577 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-10-15 01:59:10,577 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-10-15 01:59:10,578 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-10-15 01:59:10,578 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-10-15 01:59:10,578 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 01:59:10,578 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-15 01:59:10,578 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-10-15 01:59:10,578 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 01:59:10,579 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-10-15 01:59:10,579 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-10-15 01:59:10,579 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-10-15 01:59:10,579 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-10-15 01:59:10,579 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-10-15 01:59:10,579 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-10-15 01:59:10,580 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-10-15 01:59:10,580 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-10-15 01:59:10,580 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-10-15 01:59:10,580 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-15 01:59:10,580 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-10-15 01:59:10,580 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-10-15 01:59:10,581 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-10-15 01:59:10,581 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-10-15 01:59:10,581 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-10-15 01:59:10,581 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-10-15 01:59:10,581 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-10-15 01:59:10,581 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-10-15 01:59:10,581 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-10-15 01:59:10,582 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-10-15 01:59:10,582 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-10-15 01:59:10,582 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-10-15 01:59:10,582 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-10-15 01:59:10,582 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-10-15 01:59:10,582 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-10-15 01:59:10,583 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-10-15 01:59:10,583 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-10-15 01:59:10,583 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-10-15 01:59:10,583 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-10-15 01:59:10,583 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-10-15 01:59:10,583 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-10-15 01:59:10,584 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-10-15 01:59:10,584 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-10-15 01:59:10,584 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-10-15 01:59:10,584 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-10-15 01:59:10,584 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-10-15 01:59:10,584 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-10-15 01:59:10,584 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-10-15 01:59:10,585 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-10-15 01:59:10,585 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-10-15 01:59:10,585 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-10-15 01:59:10,585 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-10-15 01:59:10,585 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-10-15 01:59:10,585 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-10-15 01:59:10,585 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-10-15 01:59:10,586 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-10-15 01:59:10,586 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-10-15 01:59:10,586 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-10-15 01:59:10,586 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-10-15 01:59:10,586 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 01:59:10,586 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 01:59:10,586 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 01:59:10,587 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 01:59:10,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 01:59:10,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 01:59:10,587 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 01:59:10,587 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 01:59:10,587 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 01:59:10,587 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 01:59:10,588 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 01:59:11,329 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 01:59:11,330 INFO L284 CfgBuilder]: Removed 11 assume(true) statements. [2019-10-15 01:59:11,331 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:59:11 BoogieIcfgContainer [2019-10-15 01:59:11,331 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 01:59:11,332 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 01:59:11,332 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 01:59:11,335 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 01:59:11,336 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:59:09" (1/3) ... [2019-10-15 01:59:11,337 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68ff639a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:59:11, skipping insertion in model container [2019-10-15 01:59:11,337 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:59:10" (2/3) ... [2019-10-15 01:59:11,337 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68ff639a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:59:11, skipping insertion in model container [2019-10-15 01:59:11,338 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:59:11" (3/3) ... [2019-10-15 01:59:11,339 INFO L109 eAbstractionObserver]: Analyzing ICFG sll-rb-cnstr_1-1.i [2019-10-15 01:59:11,349 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 01:59:11,357 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2019-10-15 01:59:11,369 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-10-15 01:59:11,394 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 01:59:11,395 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 01:59:11,395 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 01:59:11,395 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 01:59:11,396 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 01:59:11,396 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 01:59:11,397 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 01:59:11,397 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 01:59:11,416 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2019-10-15 01:59:11,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-10-15 01:59:11,423 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:59:11,424 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:59:11,427 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:59:11,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:59:11,433 INFO L82 PathProgramCache]: Analyzing trace with hash -1881121825, now seen corresponding path program 1 times [2019-10-15 01:59:11,443 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 01:59:11,443 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245988147] [2019-10-15 01:59:11,444 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:59:11,444 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:59:11,444 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:59:11,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:59:11,595 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 01:59:11,595 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245988147] [2019-10-15 01:59:11,596 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:59:11,597 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 01:59:11,597 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868157172] [2019-10-15 01:59:11,602 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 01:59:11,606 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 01:59:11,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 01:59:11,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:59:11,624 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 2 states. [2019-10-15 01:59:11,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:59:11,647 INFO L93 Difference]: Finished difference Result 59 states and 89 transitions. [2019-10-15 01:59:11,647 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 01:59:11,648 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2019-10-15 01:59:11,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:59:11,658 INFO L225 Difference]: With dead ends: 59 [2019-10-15 01:59:11,658 INFO L226 Difference]: Without dead ends: 29 [2019-10-15 01:59:11,661 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 01:59:11,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-10-15 01:59:11,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2019-10-15 01:59:11,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-10-15 01:59:11,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 31 transitions. [2019-10-15 01:59:11,697 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 31 transitions. Word has length 9 [2019-10-15 01:59:11,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:59:11,697 INFO L462 AbstractCegarLoop]: Abstraction has 29 states and 31 transitions. [2019-10-15 01:59:11,698 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 01:59:11,698 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 31 transitions. [2019-10-15 01:59:11,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-15 01:59:11,698 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:59:11,699 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:59:11,699 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:59:11,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:59:11,699 INFO L82 PathProgramCache]: Analyzing trace with hash 1802396536, now seen corresponding path program 1 times [2019-10-15 01:59:11,700 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 01:59:11,700 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629941500] [2019-10-15 01:59:11,700 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:59:11,700 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:59:11,701 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:59:11,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:59:11,849 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 01:59:11,849 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629941500] [2019-10-15 01:59:11,850 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:59:11,850 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-15 01:59:11,850 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622379798] [2019-10-15 01:59:11,851 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-15 01:59:11,851 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 01:59:11,852 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-15 01:59:11,852 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-15 01:59:11,852 INFO L87 Difference]: Start difference. First operand 29 states and 31 transitions. Second operand 4 states. [2019-10-15 01:59:11,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:59:11,943 INFO L93 Difference]: Finished difference Result 32 states and 35 transitions. [2019-10-15 01:59:11,943 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-15 01:59:11,944 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-10-15 01:59:11,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:59:11,945 INFO L225 Difference]: With dead ends: 32 [2019-10-15 01:59:11,945 INFO L226 Difference]: Without dead ends: 30 [2019-10-15 01:59:11,946 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 01:59:11,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2019-10-15 01:59:11,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 27. [2019-10-15 01:59:11,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-10-15 01:59:11,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 29 transitions. [2019-10-15 01:59:11,952 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 29 transitions. Word has length 10 [2019-10-15 01:59:11,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:59:11,952 INFO L462 AbstractCegarLoop]: Abstraction has 27 states and 29 transitions. [2019-10-15 01:59:11,952 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-15 01:59:11,952 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 29 transitions. [2019-10-15 01:59:11,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-10-15 01:59:11,953 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:59:11,953 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:59:11,953 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:59:11,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:59:11,954 INFO L82 PathProgramCache]: Analyzing trace with hash -481985199, now seen corresponding path program 1 times [2019-10-15 01:59:11,954 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 01:59:11,954 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134351583] [2019-10-15 01:59:11,955 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:59:11,955 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:59:11,955 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:59:11,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:59:12,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:59:12,095 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134351583] [2019-10-15 01:59:12,095 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:59:12,098 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 01:59:12,098 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196593241] [2019-10-15 01:59:12,099 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 01:59:12,099 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 01:59:12,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 01:59:12,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 01:59:12,100 INFO L87 Difference]: Start difference. First operand 27 states and 29 transitions. Second operand 5 states. [2019-10-15 01:59:12,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:59:12,323 INFO L93 Difference]: Finished difference Result 52 states and 57 transitions. [2019-10-15 01:59:12,324 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-15 01:59:12,324 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2019-10-15 01:59:12,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:59:12,326 INFO L225 Difference]: With dead ends: 52 [2019-10-15 01:59:12,326 INFO L226 Difference]: Without dead ends: 50 [2019-10-15 01:59:12,326 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-10-15 01:59:12,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2019-10-15 01:59:12,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 34. [2019-10-15 01:59:12,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-10-15 01:59:12,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 37 transitions. [2019-10-15 01:59:12,340 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 37 transitions. Word has length 13 [2019-10-15 01:59:12,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:59:12,341 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 37 transitions. [2019-10-15 01:59:12,341 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 01:59:12,341 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 37 transitions. [2019-10-15 01:59:12,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-10-15 01:59:12,342 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:59:12,342 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:59:12,345 INFO L410 AbstractCegarLoop]: === Iteration 4 === [mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:59:12,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:59:12,346 INFO L82 PathProgramCache]: Analyzing trace with hash -973296707, now seen corresponding path program 1 times [2019-10-15 01:59:12,346 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 01:59:12,346 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062262064] [2019-10-15 01:59:12,347 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:59:12,347 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:59:12,347 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:59:12,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:59:12,637 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:59:12,638 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062262064] [2019-10-15 01:59:12,638 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [991418849] [2019-10-15 01:59:12,638 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 01:59:12,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:59:12,765 INFO L256 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 23 conjunts are in the unsatisfiable core [2019-10-15 01:59:12,772 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:59:12,839 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2019-10-15 01:59:12,840 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-15 01:59:12,857 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 01:59:12,864 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 13 treesize of output 9 [2019-10-15 01:59:12,865 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-15 01:59:12,879 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 01:59:12,880 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-15 01:59:12,880 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:29, output treesize:24 [2019-10-15 01:59:12,911 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 01:59:12,943 INFO L392 ElimStorePlain]: Different costs {1=[|v_#valid_33|], 4=[v_prenex_9]} [2019-10-15 01:59:13,221 INFO L235 Elim1Store]: Index analysis took 127 ms [2019-10-15 01:59:13,245 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 01:59:13,246 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 145 treesize of output 149 [2019-10-15 01:59:13,248 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-15 01:59:17,729 WARN L191 SmtUtils]: Spent 4.48 s on a formula simplification that was a NOOP. DAG size: 158 [2019-10-15 01:59:17,730 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 01:59:18,672 INFO L235 Elim1Store]: Index analysis took 187 ms [2019-10-15 01:59:18,694 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 01:59:18,695 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 259 treesize of output 277 [2019-10-15 01:59:18,697 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-15 01:59:21,895 WARN L191 SmtUtils]: Spent 3.20 s on a formula simplification that was a NOOP. DAG size: 155 [2019-10-15 01:59:21,896 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 01:59:21,927 INFO L392 ElimStorePlain]: Different costs {0=[v_prenex_8, |v_#memory_$Pointer$.base_34|, v_prenex_10, |#memory_$Pointer$.base|, |#memory_$Pointer$.offset|, v_prenex_1, |v_#memory_int_46|, |v_#memory_$Pointer$.offset_34|, v_prenex_7], 2=[|v_#memory_int_44|, |v_#memory_int_45|, |v_#memory_int_47|, v_prenex_3, v_prenex_5, |v_#memory_int_43|], 4=[v_prenex_4], 6=[|v_#memory_$Pointer$.offset_33|, |v_#memory_$Pointer$.base_33|]} [2019-10-15 01:59:21,971 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-10-15 01:59:24,504 WARN L191 SmtUtils]: Spent 2.53 s on a formula simplification that was a NOOP. DAG size: 145 [2019-10-15 01:59:24,505 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 01:59:24,601 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-15 01:59:24,737 INFO L235 Elim1Store]: Index analysis took 155 ms [2019-10-15 01:59:24,740 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 139 treesize of output 115 [2019-10-15 01:59:24,741 INFO L496 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-10-15 01:59:26,960 WARN L191 SmtUtils]: Spent 2.22 s on a formula simplification that was a NOOP. DAG size: 140 [2019-10-15 01:59:26,961 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 01:59:26,991 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-15 01:59:27,064 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 218 treesize of output 194 [2019-10-15 01:59:27,065 INFO L496 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2019-10-15 01:59:28,451 WARN L191 SmtUtils]: Spent 1.39 s on a formula simplification that was a NOOP. DAG size: 135 [2019-10-15 01:59:28,451 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 01:59:28,558 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 115 treesize of output 107 [2019-10-15 01:59:28,558 INFO L496 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2019-10-15 01:59:29,774 WARN L191 SmtUtils]: Spent 1.22 s on a formula simplification that was a NOOP. DAG size: 128 [2019-10-15 01:59:29,775 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 01:59:29,828 INFO L496 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2019-10-15 01:59:30,903 WARN L191 SmtUtils]: Spent 1.07 s on a formula simplification that was a NOOP. DAG size: 116 [2019-10-15 01:59:30,903 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 01:59:30,948 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-15 01:59:31,236 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 194 treesize of output 170 [2019-10-15 01:59:31,238 INFO L496 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2019-10-15 01:59:32,007 WARN L191 SmtUtils]: Spent 768.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2019-10-15 01:59:32,008 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 01:59:32,019 INFO L496 ElimStorePlain]: Start of recursive call 10: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-15 01:59:32,652 WARN L191 SmtUtils]: Spent 632.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2019-10-15 01:59:32,652 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 01:59:32,652 INFO L464 ElimStorePlain]: Eliminatee |v_#memory_$Pointer$.offset_34| vanished before elimination [2019-10-15 01:59:32,660 INFO L496 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2019-10-15 01:59:32,987 WARN L191 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2019-10-15 01:59:32,988 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 01:59:32,994 INFO L496 ElimStorePlain]: Start of recursive call 12: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-15 01:59:33,302 WARN L191 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2019-10-15 01:59:33,303 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 01:59:33,308 INFO L496 ElimStorePlain]: Start of recursive call 13: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-15 01:59:33,535 WARN L191 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-10-15 01:59:33,536 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 01:59:33,554 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-15 01:59:33,569 INFO L341 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2019-10-15 01:59:33,570 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 46 [2019-10-15 01:59:33,571 INFO L496 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2019-10-15 01:59:33,693 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2019-10-15 01:59:33,694 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 01:59:33,700 INFO L496 ElimStorePlain]: Start of recursive call 15: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-15 01:59:33,799 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 01:59:33,808 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-15 01:59:33,814 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 125 treesize of output 104 [2019-10-15 01:59:33,815 INFO L496 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2019-10-15 01:59:33,890 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 01:59:33,897 INFO L496 ElimStorePlain]: Start of recursive call 17: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-15 01:59:33,978 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 01:59:33,988 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-15 01:59:33,989 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-15 01:59:33,990 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-15 01:59:34,006 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 8 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 107 treesize of output 103 [2019-10-15 01:59:34,007 INFO L496 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2019-10-15 01:59:34,087 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 01:59:34,097 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 97 treesize of output 89 [2019-10-15 01:59:34,098 INFO L496 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2019-10-15 01:59:34,153 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 01:59:34,161 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 75 [2019-10-15 01:59:34,162 INFO L496 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2019-10-15 01:59:34,211 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 01:59:34,214 INFO L496 ElimStorePlain]: Start of recursive call 1: 7 dim-0 vars, 2 dim-1 vars, 18 dim-2 vars, End of recursive call: 5 dim-0 vars, and 2 xjuncts. [2019-10-15 01:59:34,214 INFO L221 ElimStorePlain]: Needed 20 recursive calls to eliminate 27 variables, input treesize:404, output treesize:72 [2019-10-15 01:59:34,305 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 10 [2019-10-15 01:59:34,306 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-15 01:59:34,311 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 01:59:34,312 INFO L496 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-15 01:59:34,312 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:28, output treesize:3 [2019-10-15 01:59:34,315 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:59:34,315 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:59:34,341 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 01:59:34,364 INFO L392 ElimStorePlain]: Different costs {0=[|v_#memory_$Pointer$.base_35|, |#memory_$Pointer$.base|, |#memory_$Pointer$.offset|, v_prenex_12, |v_#memory_$Pointer$.offset_35|, v_prenex_18, v_prenex_17, v_prenex_16], 2=[|v_#memory_int_44|, v_prenex_13, |v_#memory_int_43|], 3=[v_prenex_14, |v_#memory_int_46|], 4=[|v_#memory_int_45|], 6=[|v_#memory_$Pointer$.offset_33|, |v_#memory_$Pointer$.base_33|]} [2019-10-15 01:59:34,391 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-15 01:59:35,403 WARN L191 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 153 [2019-10-15 01:59:35,403 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 01:59:35,490 INFO L172 IndexEqualityManager]: detected equality via solver [2019-10-15 01:59:35,630 INFO L341 Elim1Store]: treesize reduction 49, result has 43.7 percent of original size [2019-10-15 01:59:35,631 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 218 treesize of output 216 [2019-10-15 01:59:35,632 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-15 01:59:36,654 WARN L191 SmtUtils]: Spent 1.02 s on a formula simplification that was a NOOP. DAG size: 158 [2019-10-15 01:59:36,654 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 01:59:36,704 INFO L172 IndexEqualityManager]: detected equality via solver [2019-10-15 01:59:37,011 INFO L341 Elim1Store]: treesize reduction 49, result has 43.7 percent of original size [2019-10-15 01:59:37,012 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 216 treesize of output 214 [2019-10-15 01:59:37,013 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-10-15 01:59:39,269 WARN L191 SmtUtils]: Spent 2.26 s on a formula simplification that was a NOOP. DAG size: 155 [2019-10-15 01:59:39,270 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 01:59:39,299 INFO L496 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-10-15 01:59:40,760 WARN L191 SmtUtils]: Spent 1.46 s on a formula simplification that was a NOOP. DAG size: 142 [2019-10-15 01:59:40,760 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 01:59:40,787 INFO L496 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2019-10-15 01:59:41,119 WARN L191 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2019-10-15 01:59:41,119 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 01:59:41,125 INFO L496 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2019-10-15 01:59:41,328 WARN L191 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2019-10-15 01:59:41,328 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 01:59:41,329 INFO L464 ElimStorePlain]: Eliminatee v_prenex_17 vanished before elimination [2019-10-15 01:59:41,329 INFO L464 ElimStorePlain]: Eliminatee v_prenex_16 vanished before elimination [2019-10-15 01:59:41,337 INFO L496 ElimStorePlain]: Start of recursive call 8: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-15 01:59:41,548 WARN L191 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2019-10-15 01:59:41,549 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 01:59:41,555 INFO L496 ElimStorePlain]: Start of recursive call 9: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-15 01:59:41,814 WARN L191 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2019-10-15 01:59:41,815 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 01:59:41,822 INFO L496 ElimStorePlain]: Start of recursive call 10: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-15 01:59:42,029 WARN L191 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2019-10-15 01:59:42,030 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 01:59:42,041 INFO L496 ElimStorePlain]: Start of recursive call 11: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-15 01:59:42,164 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2019-10-15 01:59:42,165 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 01:59:42,171 INFO L496 ElimStorePlain]: Start of recursive call 12: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-15 01:59:42,283 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2019-10-15 01:59:42,283 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 01:59:42,290 INFO L496 ElimStorePlain]: Start of recursive call 13: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-15 01:59:42,369 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 01:59:42,397 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 01:59:42,398 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 177 treesize of output 184 [2019-10-15 01:59:42,399 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 01:59:42,400 INFO L496 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2019-10-15 01:59:42,470 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 01:59:42,493 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 01:59:42,494 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 140 treesize of output 147 [2019-10-15 01:59:42,494 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 01:59:42,495 INFO L496 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2019-10-15 01:59:42,533 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 01:59:42,534 INFO L496 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 16 dim-2 vars, End of recursive call: 11 dim-0 vars, and 2 xjuncts. [2019-10-15 01:59:42,535 INFO L221 ElimStorePlain]: Needed 15 recursive calls to eliminate 21 variables, input treesize:390, output treesize:149 [2019-10-15 01:59:42,610 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-15 01:59:42,611 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-15 01:59:42,612 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 01:59:42,615 INFO L464 ElimStorePlain]: Eliminatee |v_#memory_int_42| vanished before elimination [2019-10-15 01:59:42,615 INFO L496 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-15 01:59:42,615 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 8 variables, input treesize:55, output treesize:1 [2019-10-15 01:59:42,620 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:59:42,621 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [855744163] [2019-10-15 01:59:42,643 INFO L162 IcfgInterpreter]: Started Sifa with 14 locations of interest [2019-10-15 01:59:42,644 INFO L169 IcfgInterpreter]: Building call graph [2019-10-15 01:59:42,649 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-15 01:59:42,656 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-15 01:59:42,656 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-15 01:59:42,745 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 27 for LOIs