java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/forester-heap/sll-buckets-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 00:11:06,980 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 00:11:06,983 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 00:11:07,001 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 00:11:07,001 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 00:11:07,003 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 00:11:07,005 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 00:11:07,014 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 00:11:07,018 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 00:11:07,022 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 00:11:07,023 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 00:11:07,025 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 00:11:07,025 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 00:11:07,027 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 00:11:07,029 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 00:11:07,030 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 00:11:07,032 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 00:11:07,034 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 00:11:07,035 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 00:11:07,040 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 00:11:07,044 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 00:11:07,047 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 00:11:07,050 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 00:11:07,050 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 00:11:07,052 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 00:11:07,052 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 00:11:07,053 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 00:11:07,054 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 00:11:07,056 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 00:11:07,057 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 00:11:07,057 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 00:11:07,058 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 00:11:07,058 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 00:11:07,059 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 00:11:07,060 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 00:11:07,061 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 00:11:07,061 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 00:11:07,061 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 00:11:07,062 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 00:11:07,062 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 00:11:07,064 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 00:11:07,064 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-15 00:11:07,078 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 00:11:07,078 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 00:11:07,079 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 00:11:07,080 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 00:11:07,080 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 00:11:07,080 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 00:11:07,080 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 00:11:07,081 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 00:11:07,081 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 00:11:07,081 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 00:11:07,081 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 00:11:07,081 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 00:11:07,081 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 00:11:07,082 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 00:11:07,082 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 00:11:07,082 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 00:11:07,082 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 00:11:07,083 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 00:11:07,083 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 00:11:07,083 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 00:11:07,083 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 00:11:07,083 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 00:11:07,084 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 00:11:07,084 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 00:11:07,084 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 00:11:07,084 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 00:11:07,084 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 00:11:07,085 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 00:11:07,085 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-15 00:11:07,425 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 00:11:07,449 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 00:11:07,452 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 00:11:07,454 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 00:11:07,454 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 00:11:07,455 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/sll-buckets-1.i [2019-10-15 00:11:07,531 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c319197c4/c9ebff7045b34b0fae760ea6736dd173/FLAG6856da5ce [2019-10-15 00:11:08,092 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 00:11:08,093 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/sll-buckets-1.i [2019-10-15 00:11:08,112 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c319197c4/c9ebff7045b34b0fae760ea6736dd173/FLAG6856da5ce [2019-10-15 00:11:08,434 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c319197c4/c9ebff7045b34b0fae760ea6736dd173 [2019-10-15 00:11:08,444 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 00:11:08,446 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 00:11:08,447 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 00:11:08,447 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 00:11:08,451 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 00:11:08,452 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 12:11:08" (1/1) ... [2019-10-15 00:11:08,455 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1118f63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:11:08, skipping insertion in model container [2019-10-15 00:11:08,455 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 12:11:08" (1/1) ... [2019-10-15 00:11:08,463 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 00:11:08,504 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 00:11:08,967 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 00:11:08,978 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 00:11:09,027 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 00:11:09,088 INFO L192 MainTranslator]: Completed translation [2019-10-15 00:11:09,088 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:11:09 WrapperNode [2019-10-15 00:11:09,088 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 00:11:09,089 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 00:11:09,089 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 00:11:09,090 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 00:11:09,101 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:11:09" (1/1) ... [2019-10-15 00:11:09,101 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:11:09" (1/1) ... [2019-10-15 00:11:09,120 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:11:09" (1/1) ... [2019-10-15 00:11:09,120 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:11:09" (1/1) ... [2019-10-15 00:11:09,152 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:11:09" (1/1) ... [2019-10-15 00:11:09,160 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:11:09" (1/1) ... [2019-10-15 00:11:09,164 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:11:09" (1/1) ... [2019-10-15 00:11:09,171 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 00:11:09,172 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 00:11:09,172 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 00:11:09,172 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 00:11:09,173 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:11:09" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 00:11:09,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 00:11:09,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 00:11:09,242 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 00:11:09,242 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-10-15 00:11:09,242 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-10-15 00:11:09,243 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-10-15 00:11:09,243 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-10-15 00:11:09,243 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-10-15 00:11:09,243 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-10-15 00:11:09,244 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-10-15 00:11:09,244 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-10-15 00:11:09,244 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-10-15 00:11:09,245 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-10-15 00:11:09,246 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-10-15 00:11:09,247 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-10-15 00:11:09,247 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-10-15 00:11:09,249 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-10-15 00:11:09,250 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-10-15 00:11:09,250 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-10-15 00:11:09,250 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-10-15 00:11:09,250 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-10-15 00:11:09,251 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-10-15 00:11:09,251 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-10-15 00:11:09,251 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-10-15 00:11:09,252 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-10-15 00:11:09,254 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-10-15 00:11:09,254 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-10-15 00:11:09,254 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-10-15 00:11:09,254 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-10-15 00:11:09,255 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-10-15 00:11:09,255 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-10-15 00:11:09,255 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-10-15 00:11:09,255 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-10-15 00:11:09,255 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-10-15 00:11:09,255 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-10-15 00:11:09,256 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-10-15 00:11:09,256 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-10-15 00:11:09,256 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-10-15 00:11:09,256 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-10-15 00:11:09,257 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-10-15 00:11:09,257 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-10-15 00:11:09,257 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-10-15 00:11:09,257 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-10-15 00:11:09,257 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-10-15 00:11:09,257 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-10-15 00:11:09,257 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-10-15 00:11:09,258 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-10-15 00:11:09,258 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-10-15 00:11:09,258 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-10-15 00:11:09,258 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-10-15 00:11:09,258 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-10-15 00:11:09,258 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-10-15 00:11:09,259 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-10-15 00:11:09,259 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 00:11:09,259 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-15 00:11:09,259 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-10-15 00:11:09,259 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 00:11:09,259 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-10-15 00:11:09,259 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-10-15 00:11:09,260 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-10-15 00:11:09,260 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-10-15 00:11:09,260 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-10-15 00:11:09,261 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-10-15 00:11:09,261 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-10-15 00:11:09,261 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-10-15 00:11:09,261 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-10-15 00:11:09,261 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-15 00:11:09,261 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-10-15 00:11:09,262 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-10-15 00:11:09,263 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-10-15 00:11:09,263 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-10-15 00:11:09,263 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-10-15 00:11:09,263 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-10-15 00:11:09,264 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-10-15 00:11:09,264 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-10-15 00:11:09,265 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-10-15 00:11:09,265 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-10-15 00:11:09,265 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-10-15 00:11:09,265 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-10-15 00:11:09,266 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-10-15 00:11:09,266 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-10-15 00:11:09,266 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-10-15 00:11:09,266 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-10-15 00:11:09,266 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-10-15 00:11:09,267 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-10-15 00:11:09,267 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-10-15 00:11:09,267 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-10-15 00:11:09,268 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-10-15 00:11:09,268 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-10-15 00:11:09,268 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-10-15 00:11:09,268 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-10-15 00:11:09,268 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-10-15 00:11:09,268 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-10-15 00:11:09,268 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-10-15 00:11:09,269 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-10-15 00:11:09,269 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-10-15 00:11:09,269 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-10-15 00:11:09,269 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-10-15 00:11:09,269 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-10-15 00:11:09,269 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-10-15 00:11:09,269 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-10-15 00:11:09,270 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-10-15 00:11:09,270 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-10-15 00:11:09,270 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-10-15 00:11:09,270 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-10-15 00:11:09,270 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-10-15 00:11:09,270 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 00:11:09,271 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 00:11:09,271 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 00:11:09,271 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 00:11:09,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 00:11:09,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 00:11:09,271 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 00:11:09,271 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 00:11:09,272 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 00:11:09,272 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 00:11:09,272 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 00:11:10,007 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 00:11:10,007 INFO L284 CfgBuilder]: Removed 15 assume(true) statements. [2019-10-15 00:11:10,008 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 12:11:10 BoogieIcfgContainer [2019-10-15 00:11:10,009 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 00:11:10,010 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 00:11:10,010 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 00:11:10,014 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 00:11:10,015 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 12:11:08" (1/3) ... [2019-10-15 00:11:10,016 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d742de8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 12:11:10, skipping insertion in model container [2019-10-15 00:11:10,016 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:11:09" (2/3) ... [2019-10-15 00:11:10,017 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d742de8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 12:11:10, skipping insertion in model container [2019-10-15 00:11:10,018 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 12:11:10" (3/3) ... [2019-10-15 00:11:10,020 INFO L109 eAbstractionObserver]: Analyzing ICFG sll-buckets-1.i [2019-10-15 00:11:10,030 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 00:11:10,042 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2019-10-15 00:11:10,055 INFO L249 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2019-10-15 00:11:10,087 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 00:11:10,088 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 00:11:10,088 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 00:11:10,088 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 00:11:10,088 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 00:11:10,089 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 00:11:10,089 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 00:11:10,089 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 00:11:10,110 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states. [2019-10-15 00:11:10,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-10-15 00:11:10,117 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:11:10,119 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 00:11:10,121 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:11:10,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:11:10,127 INFO L82 PathProgramCache]: Analyzing trace with hash 1953697339, now seen corresponding path program 1 times [2019-10-15 00:11:10,137 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:11:10,137 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018958443] [2019-10-15 00:11:10,138 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:11:10,138 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:11:10,138 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:11:10,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:11:10,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 00:11:10,407 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018958443] [2019-10-15 00:11:10,408 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:11:10,410 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-15 00:11:10,411 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135859110] [2019-10-15 00:11:10,416 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-15 00:11:10,418 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:11:10,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-15 00:11:10,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-15 00:11:10,437 INFO L87 Difference]: Start difference. First operand 49 states. Second operand 4 states. [2019-10-15 00:11:10,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:11:10,592 INFO L93 Difference]: Finished difference Result 118 states and 194 transitions. [2019-10-15 00:11:10,594 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-15 00:11:10,595 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2019-10-15 00:11:10,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:11:10,605 INFO L225 Difference]: With dead ends: 118 [2019-10-15 00:11:10,605 INFO L226 Difference]: Without dead ends: 70 [2019-10-15 00:11:10,608 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-15 00:11:10,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2019-10-15 00:11:10,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 45. [2019-10-15 00:11:10,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2019-10-15 00:11:10,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 53 transitions. [2019-10-15 00:11:10,649 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 53 transitions. Word has length 12 [2019-10-15 00:11:10,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:11:10,650 INFO L462 AbstractCegarLoop]: Abstraction has 45 states and 53 transitions. [2019-10-15 00:11:10,650 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-15 00:11:10,650 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 53 transitions. [2019-10-15 00:11:10,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-10-15 00:11:10,651 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:11:10,651 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 00:11:10,651 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:11:10,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:11:10,652 INFO L82 PathProgramCache]: Analyzing trace with hash 471340906, now seen corresponding path program 1 times [2019-10-15 00:11:10,652 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:11:10,652 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691417287] [2019-10-15 00:11:10,653 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:11:10,653 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:11:10,653 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:11:10,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:11:10,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 00:11:10,748 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691417287] [2019-10-15 00:11:10,750 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:11:10,750 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 00:11:10,750 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020990146] [2019-10-15 00:11:10,752 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 00:11:10,752 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:11:10,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 00:11:10,753 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 00:11:10,753 INFO L87 Difference]: Start difference. First operand 45 states and 53 transitions. Second operand 3 states. [2019-10-15 00:11:10,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:11:10,801 INFO L93 Difference]: Finished difference Result 49 states and 58 transitions. [2019-10-15 00:11:10,801 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 00:11:10,801 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2019-10-15 00:11:10,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:11:10,803 INFO L225 Difference]: With dead ends: 49 [2019-10-15 00:11:10,803 INFO L226 Difference]: Without dead ends: 47 [2019-10-15 00:11:10,804 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 00:11:10,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2019-10-15 00:11:10,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 43. [2019-10-15 00:11:10,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2019-10-15 00:11:10,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 51 transitions. [2019-10-15 00:11:10,811 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 51 transitions. Word has length 13 [2019-10-15 00:11:10,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:11:10,811 INFO L462 AbstractCegarLoop]: Abstraction has 43 states and 51 transitions. [2019-10-15 00:11:10,812 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 00:11:10,812 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 51 transitions. [2019-10-15 00:11:10,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-10-15 00:11:10,812 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:11:10,813 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 00:11:10,813 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:11:10,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:11:10,814 INFO L82 PathProgramCache]: Analyzing trace with hash 1726702173, now seen corresponding path program 1 times [2019-10-15 00:11:10,814 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:11:10,814 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518487751] [2019-10-15 00:11:10,814 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:11:10,814 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:11:10,815 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:11:10,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:11:11,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 00:11:11,004 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518487751] [2019-10-15 00:11:11,004 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:11:11,005 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 00:11:11,005 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061555929] [2019-10-15 00:11:11,005 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 00:11:11,006 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:11:11,006 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 00:11:11,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 00:11:11,006 INFO L87 Difference]: Start difference. First operand 43 states and 51 transitions. Second operand 5 states. [2019-10-15 00:11:11,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:11:11,196 INFO L93 Difference]: Finished difference Result 65 states and 78 transitions. [2019-10-15 00:11:11,197 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 00:11:11,197 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2019-10-15 00:11:11,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:11:11,200 INFO L225 Difference]: With dead ends: 65 [2019-10-15 00:11:11,200 INFO L226 Difference]: Without dead ends: 54 [2019-10-15 00:11:11,200 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-10-15 00:11:11,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2019-10-15 00:11:11,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 48. [2019-10-15 00:11:11,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2019-10-15 00:11:11,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 57 transitions. [2019-10-15 00:11:11,210 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 57 transitions. Word has length 14 [2019-10-15 00:11:11,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:11:11,210 INFO L462 AbstractCegarLoop]: Abstraction has 48 states and 57 transitions. [2019-10-15 00:11:11,210 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 00:11:11,211 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 57 transitions. [2019-10-15 00:11:11,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-10-15 00:11:11,211 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:11:11,211 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 00:11:11,212 INFO L410 AbstractCegarLoop]: === Iteration 4 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:11:11,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:11:11,212 INFO L82 PathProgramCache]: Analyzing trace with hash 602561823, now seen corresponding path program 1 times [2019-10-15 00:11:11,213 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:11:11,213 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542051589] [2019-10-15 00:11:11,213 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:11:11,213 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:11:11,213 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:11:11,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:11:11,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 00:11:11,269 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542051589] [2019-10-15 00:11:11,269 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:11:11,270 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 00:11:11,270 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245928245] [2019-10-15 00:11:11,273 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 00:11:11,274 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:11:11,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 00:11:11,274 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 00:11:11,275 INFO L87 Difference]: Start difference. First operand 48 states and 57 transitions. Second operand 3 states. [2019-10-15 00:11:11,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:11:11,388 INFO L93 Difference]: Finished difference Result 49 states and 58 transitions. [2019-10-15 00:11:11,388 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 00:11:11,389 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2019-10-15 00:11:11,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:11:11,389 INFO L225 Difference]: With dead ends: 49 [2019-10-15 00:11:11,390 INFO L226 Difference]: Without dead ends: 47 [2019-10-15 00:11:11,391 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 00:11:11,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2019-10-15 00:11:11,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 46. [2019-10-15 00:11:11,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2019-10-15 00:11:11,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 55 transitions. [2019-10-15 00:11:11,398 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 55 transitions. Word has length 14 [2019-10-15 00:11:11,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:11:11,399 INFO L462 AbstractCegarLoop]: Abstraction has 46 states and 55 transitions. [2019-10-15 00:11:11,399 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 00:11:11,399 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 55 transitions. [2019-10-15 00:11:11,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-10-15 00:11:11,400 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:11:11,400 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 00:11:11,401 INFO L410 AbstractCegarLoop]: === Iteration 5 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:11:11,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:11:11,401 INFO L82 PathProgramCache]: Analyzing trace with hash 2131101984, now seen corresponding path program 1 times [2019-10-15 00:11:11,401 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:11:11,401 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635517310] [2019-10-15 00:11:11,402 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:11:11,402 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:11:11,402 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:11:11,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:11:11,922 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 00:11:11,922 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635517310] [2019-10-15 00:11:11,923 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [209248883] [2019-10-15 00:11:11,923 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 00:11:12,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:11:12,094 INFO L256 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 40 conjunts are in the unsatisfiable core [2019-10-15 00:11:12,106 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 00:11:12,432 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 00:11:12,433 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 23 treesize of output 27 [2019-10-15 00:11:12,434 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-15 00:11:12,872 WARN L191 SmtUtils]: Spent 436.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2019-10-15 00:11:12,873 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 00:11:12,881 INFO L392 ElimStorePlain]: Different costs {0=[|v_#memory_$Pointer$.base_37|, |v_#memory_$Pointer$.offset_37|, |v_#memory_$Pointer$.base_38|, |v_#memory_$Pointer$.offset_39|], 1=[|v_#memory_$Pointer$.base_39|, |v_#memory_$Pointer$.offset_38|]} [2019-10-15 00:11:12,912 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-15 00:11:13,038 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 41 treesize of output 17 [2019-10-15 00:11:13,038 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-15 00:11:13,238 WARN L191 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2019-10-15 00:11:13,238 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 00:11:13,247 INFO L496 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-15 00:11:13,398 WARN L191 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2019-10-15 00:11:13,398 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 00:11:13,416 INFO L496 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-15 00:11:13,529 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 57 [2019-10-15 00:11:13,530 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 00:11:13,568 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-15 00:11:13,588 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 41 treesize of output 17 [2019-10-15 00:11:13,589 INFO L496 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2019-10-15 00:11:13,644 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 00:11:13,655 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-15 00:11:13,665 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 7 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 58 [2019-10-15 00:11:13,666 INFO L496 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2019-10-15 00:11:13,765 INFO L567 ElimStorePlain]: treesize reduction 4, result has 96.7 percent of original size [2019-10-15 00:11:13,774 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-15 00:11:13,776 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-15 00:11:13,782 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 7 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 58 [2019-10-15 00:11:13,783 INFO L496 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2019-10-15 00:11:13,824 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 00:11:13,827 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 6 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-15 00:11:13,827 INFO L221 ElimStorePlain]: Needed 8 recursive calls to eliminate 9 variables, input treesize:207, output treesize:150 [2019-10-15 00:11:13,987 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-15 00:11:13,988 INFO L172 IndexEqualityManager]: detected equality via solver [2019-10-15 00:11:14,096 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 41 [2019-10-15 00:11:14,097 INFO L341 Elim1Store]: treesize reduction 8, result has 91.6 percent of original size [2019-10-15 00:11:14,097 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 16 case distinctions, treesize of input 144 treesize of output 171 [2019-10-15 00:11:14,103 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-15 00:11:14,246 WARN L191 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 45 [2019-10-15 00:11:14,247 INFO L567 ElimStorePlain]: treesize reduction 164, result has 49.8 percent of original size [2019-10-15 00:11:14,254 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-15 00:11:14,255 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-15 00:11:14,260 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 5 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 87 [2019-10-15 00:11:14,262 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-15 00:11:14,295 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 00:11:14,296 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-15 00:11:14,297 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:176, output treesize:150 [2019-10-15 00:11:14,342 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 00:11:14,362 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-15 00:11:14,362 INFO L172 IndexEqualityManager]: detected equality via solver [2019-10-15 00:11:14,436 INFO L341 Elim1Store]: treesize reduction 16, result has 76.5 percent of original size [2019-10-15 00:11:14,436 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 2 disjoint index pairs (out of 21 index pairs), introduced 9 new quantified variables, introduced 20 case distinctions, treesize of input 171 treesize of output 126 [2019-10-15 00:11:14,439 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 00:11:14,440 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 00:11:14,440 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 00:11:14,442 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 00:11:14,444 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 00:11:14,445 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 00:11:14,446 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 00:11:14,448 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 00:11:14,449 INFO L496 ElimStorePlain]: Start of recursive call 2: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2019-10-15 00:11:14,536 INFO L567 ElimStorePlain]: treesize reduction 20, result has 78.9 percent of original size [2019-10-15 00:11:14,549 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 00:11:14,550 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 5 disjoint index pairs (out of 21 index pairs), introduced 8 new quantified variables, introduced 2 case distinctions, treesize of input 56 treesize of output 43 [2019-10-15 00:11:14,551 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-15 00:11:14,560 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 00:11:14,560 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-15 00:11:14,561 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:185, output treesize:7 [2019-10-15 00:11:14,566 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 00:11:14,567 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 00:11:14,724 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 00:11:14,725 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [1457796409] [2019-10-15 00:11:14,731 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 20 [2019-10-15 00:11:14,771 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-15 00:11:14,771 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-15 00:11:14,836 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-15 00:11:14,838 INFO L272 AbstractInterpreter]: Visited 6 different actions 6 times. Never merged. Never widened. Performed 19 root evaluator evaluations with a maximum evaluation depth of 0. Performed 19 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 43 variables. [2019-10-15 00:11:14,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:11:14,842 INFO L536 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-15 00:11:14,878 INFO L227 lantSequenceWeakener]: Weakened 4 states. On average, predicates are now at 100% of their original sizes. [2019-10-15 00:11:14,878 INFO L551 sIntCurrentIteration]: Unifying AI predicates [2019-10-15 00:11:14,880 INFO L553 sIntCurrentIteration]: We unified 18 AI predicates to 18 [2019-10-15 00:11:14,880 INFO L562 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-15 00:11:14,881 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-10-15 00:11:14,881 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [7, 6, 7] total 14 [2019-10-15 00:11:14,881 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924462098] [2019-10-15 00:11:14,882 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 00:11:14,882 INFO L137 tionRefinementEngine]: Using predicate unifier AbsIntPredicateUnifier provided by strategy TAIPAN [2019-10-15 00:11:14,883 INFO L124 tionRefinementEngine]: Using hoare triple checker CachingHoareTripleCheckerMap provided by strategy [2019-10-15 00:11:14,883 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 00:11:14,883 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 00:11:14,883 INFO L87 Difference]: Start difference. First operand 46 states and 55 transitions. Second operand 2 states. [2019-10-15 00:11:14,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:11:14,886 INFO L93 Difference]: Finished difference Result 46 states and 55 transitions. [2019-10-15 00:11:14,886 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 00:11:14,886 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 19 [2019-10-15 00:11:14,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:11:14,886 INFO L225 Difference]: With dead ends: 46 [2019-10-15 00:11:14,886 INFO L226 Difference]: Without dead ends: 0 [2019-10-15 00:11:14,887 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 00:11:14,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-15 00:11:14,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-15 00:11:14,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-15 00:11:14,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-15 00:11:14,888 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2019-10-15 00:11:14,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:11:14,888 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-15 00:11:14,888 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 00:11:14,889 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-15 00:11:14,889 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-15 00:11:15,094 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 00:11:15,100 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-15 00:11:15,120 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-10-15 00:11:15,121 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-10-15 00:11:15,121 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-15 00:11:15,121 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-15 00:11:15,121 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-10-15 00:11:15,121 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-15 00:11:15,121 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-15 00:11:15,122 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 990 1061) no Hoare annotation was computed. [2019-10-15 00:11:15,122 INFO L443 ceAbstractionStarter]: For program point L1010-1(lines 1010 1038) no Hoare annotation was computed. [2019-10-15 00:11:15,122 INFO L443 ceAbstractionStarter]: For program point L1010-3(lines 1010 1038) no Hoare annotation was computed. [2019-10-15 00:11:15,122 INFO L443 ceAbstractionStarter]: For program point L1027(line 1027) no Hoare annotation was computed. [2019-10-15 00:11:15,122 INFO L443 ceAbstractionStarter]: For program point L1027-2(line 1027) no Hoare annotation was computed. [2019-10-15 00:11:15,122 INFO L443 ceAbstractionStarter]: For program point L1027-3(lines 1011 1038) no Hoare annotation was computed. [2019-10-15 00:11:15,122 INFO L443 ceAbstractionStarter]: For program point L1027-4(line 1027) no Hoare annotation was computed. [2019-10-15 00:11:15,123 INFO L443 ceAbstractionStarter]: For program point mainErr2ASSERT_VIOLATIONERROR_FUNCTION(line 1027) no Hoare annotation was computed. [2019-10-15 00:11:15,123 INFO L443 ceAbstractionStarter]: For program point L1053(line 1053) no Hoare annotation was computed. [2019-10-15 00:11:15,123 INFO L443 ceAbstractionStarter]: For program point L1053-2(line 1053) no Hoare annotation was computed. [2019-10-15 00:11:15,123 INFO L443 ceAbstractionStarter]: For program point L1053-3(lines 1043 1058) no Hoare annotation was computed. [2019-10-15 00:11:15,123 INFO L443 ceAbstractionStarter]: For program point L1053-4(line 1053) no Hoare annotation was computed. [2019-10-15 00:11:15,123 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 990 1061) no Hoare annotation was computed. [2019-10-15 00:11:15,124 INFO L443 ceAbstractionStarter]: For program point mainErr1ASSERT_VIOLATIONERROR_FUNCTION(line 1024) no Hoare annotation was computed. [2019-10-15 00:11:15,124 INFO L443 ceAbstractionStarter]: For program point L1029(lines 1029 1037) no Hoare annotation was computed. [2019-10-15 00:11:15,124 INFO L439 ceAbstractionStarter]: At program point L1029-2(lines 1010 1038) the Hoare annotation is: false [2019-10-15 00:11:15,124 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 990 1061) the Hoare annotation is: true [2019-10-15 00:11:15,124 INFO L439 ceAbstractionStarter]: At program point L1046-2(lines 1046 1052) the Hoare annotation is: false [2019-10-15 00:11:15,124 INFO L443 ceAbstractionStarter]: For program point mainErr4ASSERT_VIOLATIONERROR_FUNCTION(line 1053) no Hoare annotation was computed. [2019-10-15 00:11:15,124 INFO L443 ceAbstractionStarter]: For program point L1014(lines 1014 1019) no Hoare annotation was computed. [2019-10-15 00:11:15,125 INFO L443 ceAbstractionStarter]: For program point mainErr3ASSERT_VIOLATIONERROR_FUNCTION(line 1050) no Hoare annotation was computed. [2019-10-15 00:11:15,125 INFO L443 ceAbstractionStarter]: For program point L1023-1(line 1023) no Hoare annotation was computed. [2019-10-15 00:11:15,125 INFO L443 ceAbstractionStarter]: For program point L1023-3(line 1023) no Hoare annotation was computed. [2019-10-15 00:11:15,125 INFO L439 ceAbstractionStarter]: At program point L1023-4(line 1023) the Hoare annotation is: false [2019-10-15 00:11:15,125 INFO L443 ceAbstractionStarter]: For program point L1024(line 1024) no Hoare annotation was computed. [2019-10-15 00:11:15,125 INFO L443 ceAbstractionStarter]: For program point L1024-2(line 1024) no Hoare annotation was computed. [2019-10-15 00:11:15,125 INFO L443 ceAbstractionStarter]: For program point L1024-3(lines 1011 1038) no Hoare annotation was computed. [2019-10-15 00:11:15,125 INFO L443 ceAbstractionStarter]: For program point L1016(lines 1016 1019) no Hoare annotation was computed. [2019-10-15 00:11:15,126 INFO L443 ceAbstractionStarter]: For program point L1016-2(lines 1014 1019) no Hoare annotation was computed. [2019-10-15 00:11:15,126 INFO L443 ceAbstractionStarter]: For program point L1025(lines 1025 1026) no Hoare annotation was computed. [2019-10-15 00:11:15,126 INFO L443 ceAbstractionStarter]: For program point L1025-2(lines 1011 1038) no Hoare annotation was computed. [2019-10-15 00:11:15,126 INFO L443 ceAbstractionStarter]: For program point L1050-1(line 1050) no Hoare annotation was computed. [2019-10-15 00:11:15,126 INFO L443 ceAbstractionStarter]: For program point L1050-2(line 1050) no Hoare annotation was computed. [2019-10-15 00:11:15,126 INFO L443 ceAbstractionStarter]: For program point L1050-4(line 1050) no Hoare annotation was computed. [2019-10-15 00:11:15,126 INFO L439 ceAbstractionStarter]: At program point L1050-5(line 1050) the Hoare annotation is: false [2019-10-15 00:11:15,126 INFO L443 ceAbstractionStarter]: For program point L1050-6(line 1050) no Hoare annotation was computed. [2019-10-15 00:11:15,127 INFO L439 ceAbstractionStarter]: At program point L1042-2(lines 1042 1058) the Hoare annotation is: false [2019-10-15 00:11:15,127 INFO L443 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 1023) no Hoare annotation was computed. [2019-10-15 00:11:15,127 INFO L443 ceAbstractionStarter]: For program point L1042-3(lines 1042 1058) no Hoare annotation was computed. [2019-10-15 00:11:15,127 INFO L443 ceAbstractionStarter]: For program point L1034-1(lines 1034 1035) no Hoare annotation was computed. [2019-10-15 00:11:15,127 INFO L439 ceAbstractionStarter]: At program point L1034-3(lines 1034 1035) the Hoare annotation is: false [2019-10-15 00:11:15,127 INFO L443 ceAbstractionStarter]: For program point L1034-4(lines 1034 1035) no Hoare annotation was computed. [2019-10-15 00:11:15,136 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 12:11:15 BoogieIcfgContainer [2019-10-15 00:11:15,136 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-15 00:11:15,138 INFO L168 Benchmark]: Toolchain (without parser) took 6692.23 ms. Allocated memory was 145.8 MB in the beginning and 247.5 MB in the end (delta: 101.7 MB). Free memory was 102.4 MB in the beginning and 127.9 MB in the end (delta: -25.5 MB). Peak memory consumption was 76.2 MB. Max. memory is 7.1 GB. [2019-10-15 00:11:15,139 INFO L168 Benchmark]: CDTParser took 0.99 ms. Allocated memory is still 145.8 MB. Free memory was 122.1 MB in the beginning and 121.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-15 00:11:15,139 INFO L168 Benchmark]: CACSL2BoogieTranslator took 641.99 ms. Allocated memory was 145.8 MB in the beginning and 203.4 MB in the end (delta: 57.7 MB). Free memory was 102.0 MB in the beginning and 169.8 MB in the end (delta: -67.8 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2019-10-15 00:11:15,140 INFO L168 Benchmark]: Boogie Preprocessor took 82.38 ms. Allocated memory is still 203.4 MB. Free memory was 169.8 MB in the beginning and 166.5 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 7.1 GB. [2019-10-15 00:11:15,141 INFO L168 Benchmark]: RCFGBuilder took 836.69 ms. Allocated memory is still 203.4 MB. Free memory was 166.5 MB in the beginning and 112.9 MB in the end (delta: 53.5 MB). Peak memory consumption was 53.5 MB. Max. memory is 7.1 GB. [2019-10-15 00:11:15,142 INFO L168 Benchmark]: TraceAbstraction took 5126.82 ms. Allocated memory was 203.4 MB in the beginning and 247.5 MB in the end (delta: 44.0 MB). Free memory was 112.3 MB in the beginning and 127.9 MB in the end (delta: -15.6 MB). Peak memory consumption was 28.4 MB. Max. memory is 7.1 GB. [2019-10-15 00:11:15,147 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.99 ms. Allocated memory is still 145.8 MB. Free memory was 122.1 MB in the beginning and 121.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 641.99 ms. Allocated memory was 145.8 MB in the beginning and 203.4 MB in the end (delta: 57.7 MB). Free memory was 102.0 MB in the beginning and 169.8 MB in the end (delta: -67.8 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 82.38 ms. Allocated memory is still 203.4 MB. Free memory was 169.8 MB in the beginning and 166.5 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 836.69 ms. Allocated memory is still 203.4 MB. Free memory was 166.5 MB in the beginning and 112.9 MB in the end (delta: 53.5 MB). Peak memory consumption was 53.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 5126.82 ms. Allocated memory was 203.4 MB in the beginning and 247.5 MB in the end (delta: 44.0 MB). Free memory was 112.3 MB in the beginning and 127.9 MB in the end (delta: -15.6 MB). Peak memory consumption was 28.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1024]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1023]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1053]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1027]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1050]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 5 specifications checked. All of them hold - InvariantResult [Line: 1042]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1050]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1046]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1010]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1034]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1023]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 49 locations, 5 error locations. Result: SAFE, OverallTime: 5.0s, OverallIterations: 5, TraceHistogramMax: 2, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 172 SDtfs, 148 SDslu, 177 SDs, 0 SdLazy, 106 SolverSat, 24 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=49occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 36 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 10 PreInvPairs, 10 NumberOfFragments, 10 HoareAnnotationTreeSize, 10 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 3.3s InterpolantComputationTime, 91 NumberOfCodeBlocks, 91 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 103 ConstructedInterpolants, 1 QuantifiedInterpolants, 49389 SizeOfPredicates, 13 NumberOfNonLiveVariables, 138 ConjunctsInSsa, 40 ConjunctsInUnsatCore, 7 InterpolantComputations, 4 PerfectInterpolantSequences, 0/6 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: TIME[ms]: 112, ITERATIONS: 1, WAS_STRONG: 1, WEAKENING_RATIO: 0.75, AVG_VARS_REMOVED_DURING_WEAKENING: 2.2222222222222223, AVG_WEAKENED_CONJUNCTS: 0.3333333333333333, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...