/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -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/dll-simple-white-blue-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 02:08:43,389 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 02:08:43,391 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 02:08:43,404 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 02:08:43,404 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 02:08:43,405 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 02:08:43,406 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 02:08:43,408 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 02:08:43,410 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 02:08:43,411 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 02:08:43,412 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 02:08:43,413 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 02:08:43,413 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 02:08:43,414 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 02:08:43,415 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 02:08:43,416 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 02:08:43,417 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 02:08:43,418 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 02:08:43,420 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 02:08:43,422 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 02:08:43,423 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 02:08:43,424 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 02:08:43,426 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 02:08:43,426 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 02:08:43,429 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-07 02:08:43,429 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-07 02:08:43,429 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-07 02:08:43,430 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-07 02:08:43,431 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-07 02:08:43,432 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-07 02:08:43,432 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-07 02:08:43,433 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-07 02:08:43,433 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-07 02:08:43,434 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-07 02:08:43,435 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-07 02:08:43,436 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-07 02:08:43,436 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-07 02:08:43,436 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-07 02:08:43,437 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 02:08:43,438 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 02:08:43,438 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 02:08:43,439 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 [2019-11-07 02:08:43,454 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 02:08:43,454 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 02:08:43,455 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 02:08:43,456 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 02:08:43,456 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 02:08:43,456 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 02:08:43,456 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 02:08:43,457 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 02:08:43,457 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 02:08:43,457 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 02:08:43,457 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 02:08:43,457 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 02:08:43,458 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 02:08:43,458 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 02:08:43,458 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 02:08:43,458 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 02:08:43,458 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 02:08:43,459 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 02:08:43,459 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 02:08:43,459 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 02:08:43,459 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 02:08:43,459 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 02:08:43,460 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 02:08:43,460 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 02:08:43,460 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 02:08:43,460 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 02:08:43,460 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 02:08:43,461 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 02:08:43,461 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 [2019-11-07 02:08:43,769 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 02:08:43,787 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 02:08:43,791 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 02:08:43,792 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 02:08:43,793 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 02:08:43,793 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/dll-simple-white-blue-2.i [2019-11-07 02:08:43,857 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/181ea6afb/814cc426a83e4a94a9f2ba87d455949d/FLAGf0e4f1a2b [2019-11-07 02:08:44,411 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 02:08:44,412 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-simple-white-blue-2.i [2019-11-07 02:08:44,425 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/181ea6afb/814cc426a83e4a94a9f2ba87d455949d/FLAGf0e4f1a2b [2019-11-07 02:08:44,740 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/181ea6afb/814cc426a83e4a94a9f2ba87d455949d [2019-11-07 02:08:44,759 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 02:08:44,761 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 02:08:44,779 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 02:08:44,780 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 02:08:44,787 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 02:08:44,788 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:08:44" (1/1) ... [2019-11-07 02:08:44,801 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fd74acf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:08:44, skipping insertion in model container [2019-11-07 02:08:44,801 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:08:44" (1/1) ... [2019-11-07 02:08:44,809 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 02:08:44,869 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 02:08:45,312 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 02:08:45,331 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 02:08:45,378 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 02:08:45,428 INFO L192 MainTranslator]: Completed translation [2019-11-07 02:08:45,429 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:08:45 WrapperNode [2019-11-07 02:08:45,429 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 02:08:45,430 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 02:08:45,430 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 02:08:45,430 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 02:08:45,444 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:08:45" (1/1) ... [2019-11-07 02:08:45,445 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:08:45" (1/1) ... [2019-11-07 02:08:45,460 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:08:45" (1/1) ... [2019-11-07 02:08:45,460 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:08:45" (1/1) ... [2019-11-07 02:08:45,478 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:08:45" (1/1) ... [2019-11-07 02:08:45,488 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:08:45" (1/1) ... [2019-11-07 02:08:45,493 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:08:45" (1/1) ... [2019-11-07 02:08:45,499 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 02:08:45,500 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 02:08:45,500 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 02:08:45,500 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 02:08:45,501 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:08:45" (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 [2019-11-07 02:08:45,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 02:08:45,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 02:08:45,559 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 02:08:45,559 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-07 02:08:45,559 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-07 02:08:45,561 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-07 02:08:45,561 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-07 02:08:45,562 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-07 02:08:45,562 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-07 02:08:45,562 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-07 02:08:45,562 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-07 02:08:45,563 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-07 02:08:45,564 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-07 02:08:45,564 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-07 02:08:45,564 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-07 02:08:45,564 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-07 02:08:45,566 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-07 02:08:45,567 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-07 02:08:45,567 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-07 02:08:45,567 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-07 02:08:45,567 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-07 02:08:45,567 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-07 02:08:45,567 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-07 02:08:45,568 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-07 02:08:45,568 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-07 02:08:45,568 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-07 02:08:45,568 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-07 02:08:45,568 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-07 02:08:45,568 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-07 02:08:45,568 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-07 02:08:45,569 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-07 02:08:45,569 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-07 02:08:45,569 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-07 02:08:45,569 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-07 02:08:45,570 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-07 02:08:45,570 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-07 02:08:45,570 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-07 02:08:45,570 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-07 02:08:45,570 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-07 02:08:45,570 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-07 02:08:45,571 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-07 02:08:45,571 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-07 02:08:45,571 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-07 02:08:45,572 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-07 02:08:45,572 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-07 02:08:45,572 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-07 02:08:45,572 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-07 02:08:45,574 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-07 02:08:45,574 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-07 02:08:45,574 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-07 02:08:45,575 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-07 02:08:45,575 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-07 02:08:45,575 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-07 02:08:45,575 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-07 02:08:45,575 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-07 02:08:45,575 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-07 02:08:45,575 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-07 02:08:45,576 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-11-07 02:08:45,576 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-07 02:08:45,576 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-07 02:08:45,576 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-07 02:08:45,577 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-07 02:08:45,577 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-07 02:08:45,577 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-07 02:08:45,577 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-07 02:08:45,577 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-07 02:08:45,577 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-07 02:08:45,577 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-07 02:08:45,578 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-07 02:08:45,579 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-07 02:08:45,579 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-07 02:08:45,579 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-07 02:08:45,579 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-07 02:08:45,580 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-07 02:08:45,580 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-07 02:08:45,580 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-07 02:08:45,581 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-07 02:08:45,581 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-07 02:08:45,581 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-07 02:08:45,581 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-07 02:08:45,582 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-07 02:08:45,582 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-07 02:08:45,582 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-07 02:08:45,583 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-07 02:08:45,583 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-07 02:08:45,583 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-07 02:08:45,583 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-07 02:08:45,584 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-07 02:08:45,584 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-07 02:08:45,584 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-07 02:08:45,584 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-07 02:08:45,585 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-07 02:08:45,585 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-07 02:08:45,585 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-07 02:08:45,585 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-07 02:08:45,585 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-07 02:08:45,585 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-07 02:08:45,585 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-07 02:08:45,586 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-07 02:08:45,586 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-07 02:08:45,586 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-07 02:08:45,586 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-07 02:08:45,586 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-07 02:08:45,586 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-07 02:08:45,586 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-07 02:08:45,587 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-07 02:08:45,587 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-07 02:08:45,587 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 02:08:45,587 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 02:08:45,587 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-07 02:08:45,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-07 02:08:45,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-07 02:08:45,588 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-07 02:08:45,588 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-07 02:08:45,588 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-07 02:08:45,588 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 02:08:45,589 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 02:08:46,287 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 02:08:46,287 INFO L284 CfgBuilder]: Removed 8 assume(true) statements. [2019-11-07 02:08:46,289 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:08:46 BoogieIcfgContainer [2019-11-07 02:08:46,289 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 02:08:46,290 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 02:08:46,290 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 02:08:46,293 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 02:08:46,294 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 02:08:44" (1/3) ... [2019-11-07 02:08:46,295 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26e4e309 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:08:46, skipping insertion in model container [2019-11-07 02:08:46,295 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:08:45" (2/3) ... [2019-11-07 02:08:46,295 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26e4e309 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:08:46, skipping insertion in model container [2019-11-07 02:08:46,296 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:08:46" (3/3) ... [2019-11-07 02:08:46,297 INFO L109 eAbstractionObserver]: Analyzing ICFG dll-simple-white-blue-2.i [2019-11-07 02:08:46,307 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 02:08:46,316 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 02:08:46,328 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 02:08:46,353 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 02:08:46,354 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 02:08:46,354 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 02:08:46,354 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 02:08:46,354 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 02:08:46,354 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 02:08:46,355 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 02:08:46,355 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 02:08:46,373 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states. [2019-11-07 02:08:46,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-07 02:08:46,380 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 02:08:46,382 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 02:08:46,383 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 02:08:46,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 02:08:46,389 INFO L82 PathProgramCache]: Analyzing trace with hash 1751838384, now seen corresponding path program 1 times [2019-11-07 02:08:46,396 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 02:08:46,397 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49711156] [2019-11-07 02:08:46,397 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 02:08:46,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 02:08:46,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 02:08:46,550 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49711156] [2019-11-07 02:08:46,551 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 02:08:46,552 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-07 02:08:46,553 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583349735] [2019-11-07 02:08:46,558 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-07 02:08:46,558 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 02:08:46,573 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-07 02:08:46,574 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-07 02:08:46,576 INFO L87 Difference]: Start difference. First operand 27 states. Second operand 2 states. [2019-11-07 02:08:46,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 02:08:46,595 INFO L93 Difference]: Finished difference Result 46 states and 67 transitions. [2019-11-07 02:08:46,595 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-07 02:08:46,597 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 14 [2019-11-07 02:08:46,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 02:08:46,606 INFO L225 Difference]: With dead ends: 46 [2019-11-07 02:08:46,606 INFO L226 Difference]: Without dead ends: 22 [2019-11-07 02:08:46,609 INFO L630 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 [2019-11-07 02:08:46,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2019-11-07 02:08:46,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2019-11-07 02:08:46,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-11-07 02:08:46,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 27 transitions. [2019-11-07 02:08:46,650 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 27 transitions. Word has length 14 [2019-11-07 02:08:46,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 02:08:46,650 INFO L462 AbstractCegarLoop]: Abstraction has 22 states and 27 transitions. [2019-11-07 02:08:46,651 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-07 02:08:46,651 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 27 transitions. [2019-11-07 02:08:46,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-07 02:08:46,652 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 02:08:46,652 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 02:08:46,652 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 02:08:46,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 02:08:46,653 INFO L82 PathProgramCache]: Analyzing trace with hash -1996295937, now seen corresponding path program 1 times [2019-11-07 02:08:46,653 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 02:08:46,653 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642229514] [2019-11-07 02:08:46,654 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 02:08:46,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 02:08:46,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 02:08:46,955 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642229514] [2019-11-07 02:08:46,955 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 02:08:46,955 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-07 02:08:46,955 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451795294] [2019-11-07 02:08:46,957 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-07 02:08:46,957 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 02:08:46,958 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-07 02:08:46,958 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-07 02:08:46,958 INFO L87 Difference]: Start difference. First operand 22 states and 27 transitions. Second operand 7 states. [2019-11-07 02:08:47,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 02:08:47,390 INFO L93 Difference]: Finished difference Result 46 states and 56 transitions. [2019-11-07 02:08:47,390 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-07 02:08:47,390 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 16 [2019-11-07 02:08:47,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 02:08:47,393 INFO L225 Difference]: With dead ends: 46 [2019-11-07 02:08:47,393 INFO L226 Difference]: Without dead ends: 44 [2019-11-07 02:08:47,394 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2019-11-07 02:08:47,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2019-11-07 02:08:47,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 28. [2019-11-07 02:08:47,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-11-07 02:08:47,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 34 transitions. [2019-11-07 02:08:47,412 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 34 transitions. Word has length 16 [2019-11-07 02:08:47,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 02:08:47,412 INFO L462 AbstractCegarLoop]: Abstraction has 28 states and 34 transitions. [2019-11-07 02:08:47,413 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-07 02:08:47,413 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 34 transitions. [2019-11-07 02:08:47,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-11-07 02:08:47,414 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 02:08:47,414 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 02:08:47,414 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 02:08:47,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 02:08:47,415 INFO L82 PathProgramCache]: Analyzing trace with hash -1381853052, now seen corresponding path program 1 times [2019-11-07 02:08:47,415 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 02:08:47,415 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162742532] [2019-11-07 02:08:47,416 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 02:08:47,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 02:08:47,626 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 02:08:47,627 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162742532] [2019-11-07 02:08:47,627 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [771057199] [2019-11-07 02:08:47,627 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 [2019-11-07 02:08:47,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 02:08:47,755 INFO L256 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 34 conjunts are in the unsatisfiable core [2019-11-07 02:08:47,762 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 02:08:47,847 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 [2019-11-07 02:08:47,848 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-07 02:08:47,871 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-07 02:08:47,886 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-07 02:08:47,888 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-07 02:08:47,890 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-07 02:08:47,892 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 17 [2019-11-07 02:08:47,893 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-07 02:08:47,911 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-07 02:08:47,918 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-07 02:08:47,920 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-07 02:08:47,922 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-07 02:08:47,924 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 17 [2019-11-07 02:08:47,924 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-11-07 02:08:47,944 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-07 02:08:47,945 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-07 02:08:47,945 INFO L221 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:64, output treesize:41 [2019-11-07 02:08:48,009 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-07 02:08:48,010 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 11 treesize of output 15 [2019-11-07 02:08:48,011 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-07 02:08:48,067 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-07 02:08:48,078 INFO L496 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-07 02:08:48,122 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-07 02:08:48,138 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-07 02:08:48,139 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-07 02:08:48,141 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-07 02:08:48,150 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 46 [2019-11-07 02:08:48,152 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-11-07 02:08:48,189 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-07 02:08:48,194 INFO L496 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-07 02:08:48,229 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-07 02:08:48,238 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-07 02:08:48,239 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-07 02:08:48,241 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-07 02:08:48,243 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 46 [2019-11-07 02:08:48,245 INFO L496 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2019-11-07 02:08:48,280 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-07 02:08:48,282 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, 4 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-07 02:08:48,282 INFO L221 ElimStorePlain]: Needed 6 recursive calls to eliminate 6 variables, input treesize:109, output treesize:78 [2019-11-07 02:08:48,458 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-07 02:08:48,538 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-07 02:08:48,539 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 92 treesize of output 134 [2019-11-07 02:08:48,543 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 02:08:48,543 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 02:08:48,544 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 02:08:48,545 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 02:08:48,550 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 02:08:48,551 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 02:08:48,551 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 02:08:48,555 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 02:08:48,556 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 02:08:48,556 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 02:08:48,557 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 02:08:48,559 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 02:08:48,560 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 02:08:48,561 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 02:08:48,563 INFO L496 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-07 02:08:48,605 INFO L567 ElimStorePlain]: treesize reduction 58, result has 45.8 percent of original size [2019-11-07 02:08:48,631 INFO L341 Elim1Store]: treesize reduction 10, result has 63.0 percent of original size [2019-11-07 02:08:48,632 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 35 [2019-11-07 02:08:48,633 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-07 02:08:48,643 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-07 02:08:48,643 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-07 02:08:48,644 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:108, output treesize:7 [2019-11-07 02:08:48,649 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 02:08:48,649 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 02:08:48,662 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 02:08:48,886 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 02:08:48,887 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: incompatible size at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayIndexBasedCostEstimation.analyzeCosts(ArrayIndexBasedCostEstimation.java:211) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayIndexBasedCostEstimation.computeCostEstimation(ArrayIndexBasedCostEstimation.java:152) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayIndexBasedCostEstimation.(ArrayIndexBasedCostEstimation.java:64) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.computeCostEstimation(ElimStorePlain.java:519) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:390) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.startRecursiveElimination(ElimStorePlain.java:216) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:306) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:102) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:245) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:439) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:418) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:290) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:335) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:294) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:188) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:178) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:83) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:463) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-11-07 02:08:48,894 INFO L168 Benchmark]: Toolchain (without parser) took 4133.48 ms. Allocated memory was 143.7 MB in the beginning and 252.2 MB in the end (delta: 108.5 MB). Free memory was 99.6 MB in the beginning and 176.5 MB in the end (delta: -76.8 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2019-11-07 02:08:48,895 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 143.7 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2019-11-07 02:08:48,896 INFO L168 Benchmark]: CACSL2BoogieTranslator took 650.11 ms. Allocated memory was 143.7 MB in the beginning and 200.8 MB in the end (delta: 57.1 MB). Free memory was 99.4 MB in the beginning and 167.4 MB in the end (delta: -68.0 MB). Peak memory consumption was 21.5 MB. Max. memory is 7.1 GB. [2019-11-07 02:08:48,897 INFO L168 Benchmark]: Boogie Preprocessor took 69.58 ms. Allocated memory is still 200.8 MB. Free memory was 167.4 MB in the beginning and 164.0 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 7.1 GB. [2019-11-07 02:08:48,898 INFO L168 Benchmark]: RCFGBuilder took 789.22 ms. Allocated memory is still 200.8 MB. Free memory was 164.0 MB in the beginning and 111.8 MB in the end (delta: 52.1 MB). Peak memory consumption was 52.1 MB. Max. memory is 7.1 GB. [2019-11-07 02:08:48,899 INFO L168 Benchmark]: TraceAbstraction took 2602.26 ms. Allocated memory was 200.8 MB in the beginning and 252.2 MB in the end (delta: 51.4 MB). Free memory was 111.2 MB in the beginning and 176.5 MB in the end (delta: -65.3 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-11-07 02:08:48,912 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 143.7 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 650.11 ms. Allocated memory was 143.7 MB in the beginning and 200.8 MB in the end (delta: 57.1 MB). Free memory was 99.4 MB in the beginning and 167.4 MB in the end (delta: -68.0 MB). Peak memory consumption was 21.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 69.58 ms. Allocated memory is still 200.8 MB. Free memory was 167.4 MB in the beginning and 164.0 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 789.22 ms. Allocated memory is still 200.8 MB. Free memory was 164.0 MB in the beginning and 111.8 MB in the end (delta: 52.1 MB). Peak memory consumption was 52.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2602.26 ms. Allocated memory was 200.8 MB in the beginning and 252.2 MB in the end (delta: 51.4 MB). Free memory was 111.2 MB in the beginning and 176.5 MB in the end (delta: -65.3 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: incompatible size de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: incompatible size: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayIndexBasedCostEstimation.analyzeCosts(ArrayIndexBasedCostEstimation.java:211) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...