java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/forester-heap/sll-sorted-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 01:59:40,119 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 01:59:40,122 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 01:59:40,141 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 01:59:40,142 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 01:59:40,144 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 01:59:40,146 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 01:59:40,155 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 01:59:40,161 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 01:59:40,164 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 01:59:40,165 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 01:59:40,167 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 01:59:40,167 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 01:59:40,169 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 01:59:40,171 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 01:59:40,172 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 01:59:40,174 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 01:59:40,175 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 01:59:40,176 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 01:59:40,180 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 01:59:40,184 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 01:59:40,187 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 01:59:40,190 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 01:59:40,191 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 01:59:40,193 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 01:59:40,193 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 01:59:40,194 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 01:59:40,195 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 01:59:40,197 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 01:59:40,198 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 01:59:40,198 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 01:59:40,199 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 01:59:40,199 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 01:59:40,200 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 01:59:40,202 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 01:59:40,202 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 01:59:40,202 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 01:59:40,203 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 01:59:40,203 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 01:59:40,204 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 01:59:40,205 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 01:59:40,206 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-15 01:59:40,231 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 01:59:40,231 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 01:59:40,232 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 01:59:40,233 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 01:59:40,234 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 01:59:40,234 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 01:59:40,234 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 01:59:40,234 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 01:59:40,234 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 01:59:40,235 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 01:59:40,235 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 01:59:40,235 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 01:59:40,236 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 01:59:40,237 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 01:59:40,237 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 01:59:40,237 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 01:59:40,237 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 01:59:40,237 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 01:59:40,237 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 01:59:40,238 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 01:59:40,238 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 01:59:40,238 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:59:40,238 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 01:59:40,239 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 01:59:40,239 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 01:59:40,239 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 01:59:40,239 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 01:59:40,239 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 01:59:40,239 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-15 01:59:40,505 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 01:59:40,519 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 01:59:40,522 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 01:59:40,524 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 01:59:40,524 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 01:59:40,525 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/sll-sorted-2.i [2019-10-15 01:59:40,600 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/47c1d24b7/3507db986f78417c8ef9a3520a0dfe71/FLAG1acc61033 [2019-10-15 01:59:41,205 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 01:59:41,205 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/sll-sorted-2.i [2019-10-15 01:59:41,225 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/47c1d24b7/3507db986f78417c8ef9a3520a0dfe71/FLAG1acc61033 [2019-10-15 01:59:41,479 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/47c1d24b7/3507db986f78417c8ef9a3520a0dfe71 [2019-10-15 01:59:41,491 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 01:59:41,492 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 01:59:41,493 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 01:59:41,493 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 01:59:41,496 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 01:59:41,497 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:59:41" (1/1) ... [2019-10-15 01:59:41,499 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@798bd143 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:59:41, skipping insertion in model container [2019-10-15 01:59:41,499 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:59:41" (1/1) ... [2019-10-15 01:59:41,505 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 01:59:41,565 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 01:59:41,993 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:59:42,009 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 01:59:42,055 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:59:42,113 INFO L192 MainTranslator]: Completed translation [2019-10-15 01:59:42,114 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:59:42 WrapperNode [2019-10-15 01:59:42,114 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 01:59:42,114 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 01:59:42,115 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 01:59:42,116 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 01:59:42,131 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:59:42" (1/1) ... [2019-10-15 01:59:42,131 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:59:42" (1/1) ... [2019-10-15 01:59:42,154 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:59:42" (1/1) ... [2019-10-15 01:59:42,154 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:59:42" (1/1) ... [2019-10-15 01:59:42,177 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:59:42" (1/1) ... [2019-10-15 01:59:42,186 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:59:42" (1/1) ... [2019-10-15 01:59:42,190 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:59:42" (1/1) ... [2019-10-15 01:59:42,196 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 01:59:42,197 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 01:59:42,197 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 01:59:42,197 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 01:59:42,198 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:59:42" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:59:42,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 01:59:42,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 01:59:42,253 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 01:59:42,253 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-10-15 01:59:42,253 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-10-15 01:59:42,254 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-10-15 01:59:42,254 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-10-15 01:59:42,254 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-10-15 01:59:42,254 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-10-15 01:59:42,254 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-10-15 01:59:42,254 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-10-15 01:59:42,255 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-10-15 01:59:42,255 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-10-15 01:59:42,255 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-10-15 01:59:42,255 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-10-15 01:59:42,255 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-10-15 01:59:42,255 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-10-15 01:59:42,256 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-10-15 01:59:42,256 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-10-15 01:59:42,256 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-10-15 01:59:42,256 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-10-15 01:59:42,256 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-10-15 01:59:42,256 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-10-15 01:59:42,257 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-10-15 01:59:42,257 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-10-15 01:59:42,257 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-10-15 01:59:42,257 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-10-15 01:59:42,257 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-10-15 01:59:42,257 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-10-15 01:59:42,258 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-10-15 01:59:42,258 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-10-15 01:59:42,258 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-10-15 01:59:42,258 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-10-15 01:59:42,258 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-10-15 01:59:42,258 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-10-15 01:59:42,259 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-10-15 01:59:42,259 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-10-15 01:59:42,259 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-10-15 01:59:42,259 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-10-15 01:59:42,259 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-10-15 01:59:42,259 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-10-15 01:59:42,259 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-10-15 01:59:42,260 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-10-15 01:59:42,260 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-10-15 01:59:42,260 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-10-15 01:59:42,260 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-10-15 01:59:42,260 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-10-15 01:59:42,260 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-10-15 01:59:42,261 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-10-15 01:59:42,261 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-10-15 01:59:42,261 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-10-15 01:59:42,261 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-10-15 01:59:42,261 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-10-15 01:59:42,261 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 01:59:42,262 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-15 01:59:42,262 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-10-15 01:59:42,262 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 01:59:42,262 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-10-15 01:59:42,262 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-10-15 01:59:42,262 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-10-15 01:59:42,263 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-10-15 01:59:42,263 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-10-15 01:59:42,263 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-10-15 01:59:42,263 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-10-15 01:59:42,263 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-10-15 01:59:42,263 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-10-15 01:59:42,263 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-15 01:59:42,264 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-10-15 01:59:42,264 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-10-15 01:59:42,264 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-10-15 01:59:42,264 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-10-15 01:59:42,264 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-10-15 01:59:42,264 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-10-15 01:59:42,265 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-10-15 01:59:42,265 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-10-15 01:59:42,265 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-10-15 01:59:42,265 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-10-15 01:59:42,265 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-10-15 01:59:42,265 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-10-15 01:59:42,266 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-10-15 01:59:42,266 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-10-15 01:59:42,266 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-10-15 01:59:42,266 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-10-15 01:59:42,266 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-10-15 01:59:42,266 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-10-15 01:59:42,266 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-10-15 01:59:42,267 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-10-15 01:59:42,267 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-10-15 01:59:42,267 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-10-15 01:59:42,267 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-10-15 01:59:42,267 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-10-15 01:59:42,267 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-10-15 01:59:42,267 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-10-15 01:59:42,268 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-10-15 01:59:42,268 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-10-15 01:59:42,268 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-10-15 01:59:42,268 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-10-15 01:59:42,268 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-10-15 01:59:42,268 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-10-15 01:59:42,269 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-10-15 01:59:42,269 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-10-15 01:59:42,269 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-10-15 01:59:42,269 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-10-15 01:59:42,269 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-10-15 01:59:42,269 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-10-15 01:59:42,269 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-10-15 01:59:42,270 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 01:59:42,270 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 01:59:42,270 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 01:59:42,270 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 01:59:42,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 01:59:42,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 01:59:42,270 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 01:59:42,270 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 01:59:42,271 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 01:59:42,271 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 01:59:42,271 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 01:59:43,063 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 01:59:43,063 INFO L284 CfgBuilder]: Removed 20 assume(true) statements. [2019-10-15 01:59:43,065 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:59:43 BoogieIcfgContainer [2019-10-15 01:59:43,065 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 01:59:43,067 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 01:59:43,067 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 01:59:43,071 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 01:59:43,072 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:59:41" (1/3) ... [2019-10-15 01:59:43,073 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48b5d58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:59:43, skipping insertion in model container [2019-10-15 01:59:43,073 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:59:42" (2/3) ... [2019-10-15 01:59:43,074 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48b5d58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:59:43, skipping insertion in model container [2019-10-15 01:59:43,074 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:59:43" (3/3) ... [2019-10-15 01:59:43,077 INFO L109 eAbstractionObserver]: Analyzing ICFG sll-sorted-2.i [2019-10-15 01:59:43,088 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 01:59:43,098 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 7 error locations. [2019-10-15 01:59:43,107 INFO L249 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2019-10-15 01:59:43,131 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 01:59:43,132 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 01:59:43,132 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 01:59:43,132 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 01:59:43,134 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 01:59:43,134 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 01:59:43,134 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 01:59:43,134 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 01:59:43,162 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states. [2019-10-15 01:59:43,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-10-15 01:59:43,169 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:59:43,171 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:59:43,173 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:59:43,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:59:43,196 INFO L82 PathProgramCache]: Analyzing trace with hash 661970847, now seen corresponding path program 1 times [2019-10-15 01:59:43,203 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 01:59:43,203 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704808548] [2019-10-15 01:59:43,204 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:59:43,204 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:59:43,204 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:59:43,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:59:43,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:59:43,361 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704808548] [2019-10-15 01:59:43,363 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:59:43,363 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 01:59:43,364 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778773884] [2019-10-15 01:59:43,369 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 01:59:43,370 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 01:59:43,384 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 01:59:43,385 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:59:43,388 INFO L87 Difference]: Start difference. First operand 56 states. Second operand 2 states. [2019-10-15 01:59:43,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:59:43,426 INFO L93 Difference]: Finished difference Result 105 states and 163 transitions. [2019-10-15 01:59:43,426 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 01:59:43,427 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2019-10-15 01:59:43,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:59:43,436 INFO L225 Difference]: With dead ends: 105 [2019-10-15 01:59:43,436 INFO L226 Difference]: Without dead ends: 52 [2019-10-15 01:59:43,439 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:59:43,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2019-10-15 01:59:43,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2019-10-15 01:59:43,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2019-10-15 01:59:43,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 56 transitions. [2019-10-15 01:59:43,484 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 56 transitions. Word has length 9 [2019-10-15 01:59:43,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:59:43,484 INFO L462 AbstractCegarLoop]: Abstraction has 52 states and 56 transitions. [2019-10-15 01:59:43,484 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 01:59:43,484 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 56 transitions. [2019-10-15 01:59:43,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-15 01:59:43,485 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:59:43,485 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:59:43,486 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:59:43,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:59:43,486 INFO L82 PathProgramCache]: Analyzing trace with hash -971829122, now seen corresponding path program 1 times [2019-10-15 01:59:43,486 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 01:59:43,487 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955747597] [2019-10-15 01:59:43,487 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:59:43,487 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:59:43,487 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:59:43,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:59:43,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:59:43,561 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955747597] [2019-10-15 01:59:43,561 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:59:43,562 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:59:43,562 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387295529] [2019-10-15 01:59:43,564 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:59:43,564 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 01:59:43,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:59:43,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:59:43,565 INFO L87 Difference]: Start difference. First operand 52 states and 56 transitions. Second operand 3 states. [2019-10-15 01:59:43,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:59:43,624 INFO L93 Difference]: Finished difference Result 100 states and 108 transitions. [2019-10-15 01:59:43,625 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:59:43,625 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-10-15 01:59:43,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:59:43,626 INFO L225 Difference]: With dead ends: 100 [2019-10-15 01:59:43,627 INFO L226 Difference]: Without dead ends: 55 [2019-10-15 01:59:43,628 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 01:59:43,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2019-10-15 01:59:43,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 54. [2019-10-15 01:59:43,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2019-10-15 01:59:43,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 58 transitions. [2019-10-15 01:59:43,637 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 58 transitions. Word has length 10 [2019-10-15 01:59:43,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:59:43,638 INFO L462 AbstractCegarLoop]: Abstraction has 54 states and 58 transitions. [2019-10-15 01:59:43,638 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:59:43,638 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 58 transitions. [2019-10-15 01:59:43,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-10-15 01:59:43,639 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:59:43,639 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:59:43,639 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:59:43,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:59:43,640 INFO L82 PathProgramCache]: Analyzing trace with hash 1380389297, now seen corresponding path program 1 times [2019-10-15 01:59:43,640 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 01:59:43,640 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723956720] [2019-10-15 01:59:43,640 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:59:43,641 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:59:43,641 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:59:43,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:59:43,742 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-15 01:59:43,742 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723956720] [2019-10-15 01:59:43,744 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:59:43,744 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-15 01:59:43,744 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885805844] [2019-10-15 01:59:43,745 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-15 01:59:43,745 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 01:59:43,745 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-15 01:59:43,745 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-15 01:59:43,745 INFO L87 Difference]: Start difference. First operand 54 states and 58 transitions. Second operand 4 states. [2019-10-15 01:59:43,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:59:43,903 INFO L93 Difference]: Finished difference Result 88 states and 95 transitions. [2019-10-15 01:59:43,903 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-15 01:59:43,903 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2019-10-15 01:59:43,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:59:43,907 INFO L225 Difference]: With dead ends: 88 [2019-10-15 01:59:43,907 INFO L226 Difference]: Without dead ends: 86 [2019-10-15 01:59:43,908 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-15 01:59:43,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2019-10-15 01:59:43,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 52. [2019-10-15 01:59:43,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2019-10-15 01:59:43,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 56 transitions. [2019-10-15 01:59:43,924 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 56 transitions. Word has length 12 [2019-10-15 01:59:43,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:59:43,926 INFO L462 AbstractCegarLoop]: Abstraction has 52 states and 56 transitions. [2019-10-15 01:59:43,926 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-15 01:59:43,927 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 56 transitions. [2019-10-15 01:59:43,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-10-15 01:59:43,927 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:59:43,927 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:59:43,928 INFO L410 AbstractCegarLoop]: === Iteration 4 === [mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:59:43,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:59:43,928 INFO L82 PathProgramCache]: Analyzing trace with hash -1889783780, now seen corresponding path program 1 times [2019-10-15 01:59:43,928 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 01:59:43,929 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479025746] [2019-10-15 01:59:43,929 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:59:43,929 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:59:43,929 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:59:44,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:59:44,264 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:59:44,264 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479025746] [2019-10-15 01:59:44,265 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [313431529] [2019-10-15 01:59:44,265 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:59:44,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:59:44,406 INFO L256 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 29 conjunts are in the unsatisfiable core [2019-10-15 01:59:44,415 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:59:44,489 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-10-15 01:59:44,490 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-15 01:59:44,497 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 01:59:44,502 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-10-15 01:59:44,503 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:12 [2019-10-15 01:59:44,525 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 01:59:44,573 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 01:59:44,573 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 98 treesize of output 102 [2019-10-15 01:59:44,575 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-15 01:59:44,598 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 01:59:44,599 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 97 treesize of output 101 [2019-10-15 01:59:44,600 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-15 01:59:44,889 WARN L191 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2019-10-15 01:59:44,889 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 01:59:44,942 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 91 treesize of output 71 [2019-10-15 01:59:44,943 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-10-15 01:59:45,107 WARN L191 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2019-10-15 01:59:45,107 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 01:59:45,121 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 67 [2019-10-15 01:59:45,122 INFO L496 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-10-15 01:59:45,285 WARN L191 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2019-10-15 01:59:45,285 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 01:59:45,318 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 92 treesize of output 72 [2019-10-15 01:59:45,319 INFO L496 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2019-10-15 01:59:45,408 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 01:59:45,422 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 68 [2019-10-15 01:59:45,423 INFO L496 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2019-10-15 01:59:45,507 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 01:59:45,526 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 68 treesize of output 48 [2019-10-15 01:59:45,526 INFO L496 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2019-10-15 01:59:45,579 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 01:59:45,592 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 67 treesize of output 47 [2019-10-15 01:59:45,592 INFO L496 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2019-10-15 01:59:45,641 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 01:59:45,643 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, 6 dim-2 vars, End of recursive call: and 2 xjuncts. [2019-10-15 01:59:45,644 INFO L221 ElimStorePlain]: Needed 9 recursive calls to eliminate 8 variables, input treesize:196, output treesize:122 [2019-10-15 01:59:45,707 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 01:59:45,792 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 01:59:45,802 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:59:45,802 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:59:45,807 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 01:59:45,808 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 01:59:45,810 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 01:59:45,811 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 01:59:45,898 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 01:59:45,899 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 01:59:45,901 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 01:59:45,912 INFO L392 ElimStorePlain]: Different costs {0=[|#memory_$Pointer$.base|, |#memory_$Pointer$.offset|, v_prenex_5, v_prenex_6], 1=[|v_#memory_int_66|, v_prenex_7], 2=[|v_#memory_$Pointer$.base_57|, v_prenex_8, |v_#memory_$Pointer$.offset_57|, v_prenex_4]} [2019-10-15 01:59:46,056 INFO L341 Elim1Store]: treesize reduction 43, result has 45.6 percent of original size [2019-10-15 01:59:46,057 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 113 treesize of output 113 [2019-10-15 01:59:46,057 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-15 01:59:46,218 WARN L191 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2019-10-15 01:59:46,218 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 01:59:46,301 INFO L341 Elim1Store]: treesize reduction 52, result has 34.2 percent of original size [2019-10-15 01:59:46,301 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 113 treesize of output 104 [2019-10-15 01:59:46,302 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-15 01:59:46,409 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2019-10-15 01:59:46,409 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 01:59:46,480 INFO L341 Elim1Store]: treesize reduction 43, result has 45.6 percent of original size [2019-10-15 01:59:46,481 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 113 treesize of output 113 [2019-10-15 01:59:46,482 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-10-15 01:59:46,604 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2019-10-15 01:59:46,605 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 01:59:46,674 INFO L341 Elim1Store]: treesize reduction 52, result has 34.2 percent of original size [2019-10-15 01:59:46,675 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 113 treesize of output 104 [2019-10-15 01:59:46,676 INFO L496 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-10-15 01:59:46,770 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 01:59:46,789 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 113 treesize of output 99 [2019-10-15 01:59:46,790 INFO L496 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2019-10-15 01:59:46,891 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2019-10-15 01:59:46,892 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 01:59:46,896 INFO L172 IndexEqualityManager]: detected equality via solver [2019-10-15 01:59:46,918 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 82 [2019-10-15 01:59:46,919 INFO L496 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2019-10-15 01:59:46,999 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 01:59:47,038 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 01:59:47,039 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 95 treesize of output 124 [2019-10-15 01:59:47,040 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 01:59:47,041 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:59:47,042 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 01:59:47,042 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 01:59:47,043 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 01:59:47,044 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 01:59:47,045 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 01:59:47,045 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 01:59:47,046 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:59:47,047 INFO L496 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2019-10-15 01:59:47,235 WARN L191 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 79 [2019-10-15 01:59:47,235 INFO L567 ElimStorePlain]: treesize reduction 122, result has 56.1 percent of original size [2019-10-15 01:59:47,277 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 01:59:47,278 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 78 treesize of output 111 [2019-10-15 01:59:47,279 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 01:59:47,280 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 01:59:47,281 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 01:59:47,281 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 01:59:47,282 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 01:59:47,282 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 01:59:47,283 INFO L496 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2019-10-15 01:59:47,454 WARN L191 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2019-10-15 01:59:47,455 INFO L567 ElimStorePlain]: treesize reduction 10, result has 94.3 percent of original size [2019-10-15 01:59:47,656 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:59:47,657 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: java.lang.UnsupportedOperationException: expected NNF at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:307) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.generateProof(TraceAbstractionRefinementEngine.java:184) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.RefinementEngineFactory.runRefinementEngine(RefinementEngineFactory.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:431) 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$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: java.lang.UnsupportedOperationException: expected NNF at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayOccurrenceAnalysis$ArrOccFinder$MyWalker.walk(ArrayOccurrenceAnalysis.java:236) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive$TermWalker.walk(NonRecursive.java:139) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayOccurrenceAnalysis$ArrOccFinder$MyWalker.walk(ArrayOccurrenceAnalysis.java:195) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayOccurrenceAnalysis$ArrOccFinder.(ArrayOccurrenceAnalysis.java:181) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayOccurrenceAnalysis.(ArrayOccurrenceAnalysis.java:74) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:275) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:253) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.eliminateOne(ElimStorePlain.java:553) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:466) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.startRecursiveElimination(ElimStorePlain.java:216) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:306) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:102) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer$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.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:299) ... 21 more [2019-10-15 01:59:47,662 INFO L168 Benchmark]: Toolchain (without parser) took 6169.98 ms. Allocated memory was 138.9 MB in the beginning and 246.9 MB in the end (delta: 108.0 MB). Free memory was 102.1 MB in the beginning and 105.0 MB in the end (delta: -2.9 MB). Peak memory consumption was 122.7 MB. Max. memory is 7.1 GB. [2019-10-15 01:59:47,663 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 138.9 MB. Free memory was 122.2 MB in the beginning and 122.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-15 01:59:47,664 INFO L168 Benchmark]: CACSL2BoogieTranslator took 620.93 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 101.9 MB in the beginning and 169.4 MB in the end (delta: -67.4 MB). Peak memory consumption was 25.5 MB. Max. memory is 7.1 GB. [2019-10-15 01:59:47,664 INFO L168 Benchmark]: Boogie Preprocessor took 82.25 ms. Allocated memory is still 202.9 MB. Free memory was 169.4 MB in the beginning and 165.6 MB in the end (delta: 3.7 MB). Peak memory consumption was 3.7 MB. Max. memory is 7.1 GB. [2019-10-15 01:59:47,665 INFO L168 Benchmark]: RCFGBuilder took 867.84 ms. Allocated memory is still 202.9 MB. Free memory was 165.6 MB in the beginning and 97.4 MB in the end (delta: 68.2 MB). Peak memory consumption was 68.2 MB. Max. memory is 7.1 GB. [2019-10-15 01:59:47,666 INFO L168 Benchmark]: TraceAbstraction took 4593.91 ms. Allocated memory was 202.9 MB in the beginning and 246.9 MB in the end (delta: 44.0 MB). Free memory was 96.7 MB in the beginning and 105.0 MB in the end (delta: -8.3 MB). Peak memory consumption was 53.3 MB. Max. memory is 7.1 GB. [2019-10-15 01:59:47,669 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 138.9 MB. Free memory was 122.2 MB in the beginning and 122.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 620.93 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 101.9 MB in the beginning and 169.4 MB in the end (delta: -67.4 MB). Peak memory consumption was 25.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 82.25 ms. Allocated memory is still 202.9 MB. Free memory was 169.4 MB in the beginning and 165.6 MB in the end (delta: 3.7 MB). Peak memory consumption was 3.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 867.84 ms. Allocated memory is still 202.9 MB. Free memory was 165.6 MB in the beginning and 97.4 MB in the end (delta: 68.2 MB). Peak memory consumption was 68.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4593.91 ms. Allocated memory was 202.9 MB in the beginning and 246.9 MB in the end (delta: 44.0 MB). Free memory was 96.7 MB in the beginning and 105.0 MB in the end (delta: -8.3 MB). Peak memory consumption was 53.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: java.lang.UnsupportedOperationException: expected NNF de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: java.lang.UnsupportedOperationException: expected NNF: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:307) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...