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/ldv-regression/rule60_list2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 01:01:26,192 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 01:01:26,194 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 01:01:26,214 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 01:01:26,214 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 01:01:26,216 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 01:01:26,218 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 01:01:26,228 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 01:01:26,232 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 01:01:26,236 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 01:01:26,237 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 01:01:26,239 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 01:01:26,239 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 01:01:26,241 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 01:01:26,243 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 01:01:26,245 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 01:01:26,246 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 01:01:26,247 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 01:01:26,250 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 01:01:26,255 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 01:01:26,259 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 01:01:26,261 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 01:01:26,263 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 01:01:26,264 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 01:01:26,266 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 01:01:26,266 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 01:01:26,267 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 01:01:26,268 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 01:01:26,269 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 01:01:26,270 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 01:01:26,270 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 01:01:26,272 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 01:01:26,273 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 01:01:26,273 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 01:01:26,275 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 01:01:26,275 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 01:01:26,275 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 01:01:26,276 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 01:01:26,276 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 01:01:26,277 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 01:01:26,278 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 01:01:26,279 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 01:01:26,310 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 01:01:26,311 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 01:01:26,315 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 01:01:26,315 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 01:01:26,315 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 01:01:26,316 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 01:01:26,316 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 01:01:26,316 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 01:01:26,318 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 01:01:26,318 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 01:01:26,318 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 01:01:26,318 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 01:01:26,319 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 01:01:26,319 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 01:01:26,319 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 01:01:26,320 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 01:01:26,320 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 01:01:26,320 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 01:01:26,321 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 01:01:26,321 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 01:01:26,321 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 01:01:26,321 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:01:26,321 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 01:01:26,322 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 01:01:26,322 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 01:01:26,322 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 01:01:26,322 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 01:01:26,322 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 01:01:26,322 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 01:01:26,604 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 01:01:26,618 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 01:01:26,621 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 01:01:26,623 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 01:01:26,623 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 01:01:26,624 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/rule60_list2.i [2019-10-15 01:01:26,702 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e5a9dd6a3/ce4ec65d89594fc090d8a993de74acd3/FLAG0fe33e87d [2019-10-15 01:01:27,270 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 01:01:27,271 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/rule60_list2.i [2019-10-15 01:01:27,286 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e5a9dd6a3/ce4ec65d89594fc090d8a993de74acd3/FLAG0fe33e87d [2019-10-15 01:01:27,579 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e5a9dd6a3/ce4ec65d89594fc090d8a993de74acd3 [2019-10-15 01:01:27,590 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 01:01:27,591 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 01:01:27,593 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 01:01:27,594 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 01:01:27,598 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 01:01:27,599 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:01:27" (1/1) ... [2019-10-15 01:01:27,603 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3cbf6379 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:01:27, skipping insertion in model container [2019-10-15 01:01:27,604 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:01:27" (1/1) ... [2019-10-15 01:01:27,612 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 01:01:27,656 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 01:01:28,076 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:01:28,084 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 01:01:28,125 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:01:28,194 INFO L192 MainTranslator]: Completed translation [2019-10-15 01:01:28,194 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:01:28 WrapperNode [2019-10-15 01:01:28,195 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 01:01:28,195 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 01:01:28,195 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 01:01:28,196 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 01:01:28,212 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:01:28" (1/1) ... [2019-10-15 01:01:28,213 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:01:28" (1/1) ... [2019-10-15 01:01:28,243 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:01:28" (1/1) ... [2019-10-15 01:01:28,243 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:01:28" (1/1) ... [2019-10-15 01:01:28,256 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:01:28" (1/1) ... [2019-10-15 01:01:28,258 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:01:28" (1/1) ... [2019-10-15 01:01:28,261 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:01:28" (1/1) ... [2019-10-15 01:01:28,268 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 01:01:28,268 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 01:01:28,268 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 01:01:28,268 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 01:01:28,269 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:01:28" (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 01:01:28,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 01:01:28,326 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 01:01:28,326 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2019-10-15 01:01:28,326 INFO L138 BoogieDeclarations]: Found implementation of procedure __getMemory [2019-10-15 01:01:28,326 INFO L138 BoogieDeclarations]: Found implementation of procedure my_malloc [2019-10-15 01:01:28,326 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2019-10-15 01:01:28,326 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2019-10-15 01:01:28,327 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 01:01:28,327 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 01:01:28,327 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2019-10-15 01:01:28,327 INFO L130 BoogieDeclarations]: Found specification of procedure __underflow [2019-10-15 01:01:28,327 INFO L130 BoogieDeclarations]: Found specification of procedure __uflow [2019-10-15 01:01:28,327 INFO L130 BoogieDeclarations]: Found specification of procedure __overflow [2019-10-15 01:01:28,328 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_getc [2019-10-15 01:01:28,328 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_putc [2019-10-15 01:01:28,328 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_feof [2019-10-15 01:01:28,328 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ferror [2019-10-15 01:01:28,328 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_peekc_locked [2019-10-15 01:01:28,328 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_flockfile [2019-10-15 01:01:28,329 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_funlockfile [2019-10-15 01:01:28,329 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ftrylockfile [2019-10-15 01:01:28,329 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfscanf [2019-10-15 01:01:28,329 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfprintf [2019-10-15 01:01:28,329 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_padn [2019-10-15 01:01:28,329 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_sgetn [2019-10-15 01:01:28,330 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekoff [2019-10-15 01:01:28,330 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekpos [2019-10-15 01:01:28,330 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_free_backup_area [2019-10-15 01:01:28,330 INFO L130 BoogieDeclarations]: Found specification of procedure remove [2019-10-15 01:01:28,330 INFO L130 BoogieDeclarations]: Found specification of procedure rename [2019-10-15 01:01:28,330 INFO L130 BoogieDeclarations]: Found specification of procedure renameat [2019-10-15 01:01:28,330 INFO L130 BoogieDeclarations]: Found specification of procedure tmpfile [2019-10-15 01:01:28,331 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam [2019-10-15 01:01:28,331 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam_r [2019-10-15 01:01:28,331 INFO L130 BoogieDeclarations]: Found specification of procedure tempnam [2019-10-15 01:01:28,331 INFO L130 BoogieDeclarations]: Found specification of procedure fclose [2019-10-15 01:01:28,331 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2019-10-15 01:01:28,332 INFO L130 BoogieDeclarations]: Found specification of procedure fflush_unlocked [2019-10-15 01:01:28,332 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2019-10-15 01:01:28,332 INFO L130 BoogieDeclarations]: Found specification of procedure freopen [2019-10-15 01:01:28,332 INFO L130 BoogieDeclarations]: Found specification of procedure fdopen [2019-10-15 01:01:28,332 INFO L130 BoogieDeclarations]: Found specification of procedure fmemopen [2019-10-15 01:01:28,332 INFO L130 BoogieDeclarations]: Found specification of procedure open_memstream [2019-10-15 01:01:28,332 INFO L130 BoogieDeclarations]: Found specification of procedure setbuf [2019-10-15 01:01:28,333 INFO L130 BoogieDeclarations]: Found specification of procedure setvbuf [2019-10-15 01:01:28,333 INFO L130 BoogieDeclarations]: Found specification of procedure setbuffer [2019-10-15 01:01:28,333 INFO L130 BoogieDeclarations]: Found specification of procedure setlinebuf [2019-10-15 01:01:28,333 INFO L130 BoogieDeclarations]: Found specification of procedure fprintf [2019-10-15 01:01:28,333 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 01:01:28,333 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2019-10-15 01:01:28,334 INFO L130 BoogieDeclarations]: Found specification of procedure vfprintf [2019-10-15 01:01:28,334 INFO L130 BoogieDeclarations]: Found specification of procedure vprintf [2019-10-15 01:01:28,334 INFO L130 BoogieDeclarations]: Found specification of procedure vsprintf [2019-10-15 01:01:28,334 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2019-10-15 01:01:28,334 INFO L130 BoogieDeclarations]: Found specification of procedure vsnprintf [2019-10-15 01:01:28,334 INFO L130 BoogieDeclarations]: Found specification of procedure vdprintf [2019-10-15 01:01:28,334 INFO L130 BoogieDeclarations]: Found specification of procedure dprintf [2019-10-15 01:01:28,335 INFO L130 BoogieDeclarations]: Found specification of procedure fscanf [2019-10-15 01:01:28,335 INFO L130 BoogieDeclarations]: Found specification of procedure scanf [2019-10-15 01:01:28,335 INFO L130 BoogieDeclarations]: Found specification of procedure sscanf [2019-10-15 01:01:28,335 INFO L130 BoogieDeclarations]: Found specification of procedure vfscanf [2019-10-15 01:01:28,335 INFO L130 BoogieDeclarations]: Found specification of procedure vscanf [2019-10-15 01:01:28,335 INFO L130 BoogieDeclarations]: Found specification of procedure vsscanf [2019-10-15 01:01:28,336 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc [2019-10-15 01:01:28,336 INFO L130 BoogieDeclarations]: Found specification of procedure getc [2019-10-15 01:01:28,336 INFO L130 BoogieDeclarations]: Found specification of procedure getchar [2019-10-15 01:01:28,336 INFO L130 BoogieDeclarations]: Found specification of procedure getc_unlocked [2019-10-15 01:01:28,336 INFO L130 BoogieDeclarations]: Found specification of procedure getchar_unlocked [2019-10-15 01:01:28,336 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc_unlocked [2019-10-15 01:01:28,336 INFO L130 BoogieDeclarations]: Found specification of procedure fputc [2019-10-15 01:01:28,337 INFO L130 BoogieDeclarations]: Found specification of procedure putc [2019-10-15 01:01:28,337 INFO L130 BoogieDeclarations]: Found specification of procedure putchar [2019-10-15 01:01:28,337 INFO L130 BoogieDeclarations]: Found specification of procedure fputc_unlocked [2019-10-15 01:01:28,337 INFO L130 BoogieDeclarations]: Found specification of procedure putc_unlocked [2019-10-15 01:01:28,337 INFO L130 BoogieDeclarations]: Found specification of procedure putchar_unlocked [2019-10-15 01:01:28,337 INFO L130 BoogieDeclarations]: Found specification of procedure getw [2019-10-15 01:01:28,337 INFO L130 BoogieDeclarations]: Found specification of procedure putw [2019-10-15 01:01:28,338 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2019-10-15 01:01:28,338 INFO L130 BoogieDeclarations]: Found specification of procedure gets [2019-10-15 01:01:28,338 INFO L130 BoogieDeclarations]: Found specification of procedure __getdelim [2019-10-15 01:01:28,338 INFO L130 BoogieDeclarations]: Found specification of procedure getdelim [2019-10-15 01:01:28,338 INFO L130 BoogieDeclarations]: Found specification of procedure getline [2019-10-15 01:01:28,339 INFO L130 BoogieDeclarations]: Found specification of procedure fputs [2019-10-15 01:01:28,339 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-15 01:01:28,339 INFO L130 BoogieDeclarations]: Found specification of procedure ungetc [2019-10-15 01:01:28,339 INFO L130 BoogieDeclarations]: Found specification of procedure fread [2019-10-15 01:01:28,339 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite [2019-10-15 01:01:28,339 INFO L130 BoogieDeclarations]: Found specification of procedure fread_unlocked [2019-10-15 01:01:28,339 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite_unlocked [2019-10-15 01:01:28,340 INFO L130 BoogieDeclarations]: Found specification of procedure fseek [2019-10-15 01:01:28,340 INFO L130 BoogieDeclarations]: Found specification of procedure ftell [2019-10-15 01:01:28,340 INFO L130 BoogieDeclarations]: Found specification of procedure rewind [2019-10-15 01:01:28,340 INFO L130 BoogieDeclarations]: Found specification of procedure fseeko [2019-10-15 01:01:28,340 INFO L130 BoogieDeclarations]: Found specification of procedure ftello [2019-10-15 01:01:28,340 INFO L130 BoogieDeclarations]: Found specification of procedure fgetpos [2019-10-15 01:01:28,341 INFO L130 BoogieDeclarations]: Found specification of procedure fsetpos [2019-10-15 01:01:28,341 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr [2019-10-15 01:01:28,341 INFO L130 BoogieDeclarations]: Found specification of procedure feof [2019-10-15 01:01:28,341 INFO L130 BoogieDeclarations]: Found specification of procedure ferror [2019-10-15 01:01:28,341 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr_unlocked [2019-10-15 01:01:28,341 INFO L130 BoogieDeclarations]: Found specification of procedure feof_unlocked [2019-10-15 01:01:28,341 INFO L130 BoogieDeclarations]: Found specification of procedure ferror_unlocked [2019-10-15 01:01:28,342 INFO L130 BoogieDeclarations]: Found specification of procedure perror [2019-10-15 01:01:28,342 INFO L130 BoogieDeclarations]: Found specification of procedure fileno [2019-10-15 01:01:28,342 INFO L130 BoogieDeclarations]: Found specification of procedure fileno_unlocked [2019-10-15 01:01:28,342 INFO L130 BoogieDeclarations]: Found specification of procedure popen [2019-10-15 01:01:28,342 INFO L130 BoogieDeclarations]: Found specification of procedure pclose [2019-10-15 01:01:28,342 INFO L130 BoogieDeclarations]: Found specification of procedure ctermid [2019-10-15 01:01:28,342 INFO L130 BoogieDeclarations]: Found specification of procedure flockfile [2019-10-15 01:01:28,343 INFO L130 BoogieDeclarations]: Found specification of procedure ftrylockfile [2019-10-15 01:01:28,343 INFO L130 BoogieDeclarations]: Found specification of procedure funlockfile [2019-10-15 01:01:28,343 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 01:01:28,343 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-15 01:01:28,343 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-10-15 01:01:28,343 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 01:01:28,343 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-10-15 01:01:28,344 INFO L130 BoogieDeclarations]: Found specification of procedure memalign [2019-10-15 01:01:28,344 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-10-15 01:01:28,344 INFO L130 BoogieDeclarations]: Found specification of procedure pvalloc [2019-10-15 01:01:28,344 INFO L130 BoogieDeclarations]: Found specification of procedure __default_morecore [2019-10-15 01:01:28,344 INFO L130 BoogieDeclarations]: Found specification of procedure mallinfo [2019-10-15 01:01:28,344 INFO L130 BoogieDeclarations]: Found specification of procedure mallopt [2019-10-15 01:01:28,345 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_trim [2019-10-15 01:01:28,345 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_usable_size [2019-10-15 01:01:28,345 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_stats [2019-10-15 01:01:28,345 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_info [2019-10-15 01:01:28,345 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_get_state [2019-10-15 01:01:28,345 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_set_state [2019-10-15 01:01:28,345 INFO L130 BoogieDeclarations]: Found specification of procedure __malloc_check_init [2019-10-15 01:01:28,346 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 01:01:28,346 INFO L130 BoogieDeclarations]: Found specification of procedure __getMemory [2019-10-15 01:01:28,346 INFO L130 BoogieDeclarations]: Found specification of procedure my_malloc [2019-10-15 01:01:28,346 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2019-10-15 01:01:28,346 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2019-10-15 01:01:28,346 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 01:01:28,347 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 01:01:28,347 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 01:01:28,347 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-15 01:01:28,347 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 01:01:28,347 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 01:01:28,347 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 01:01:28,347 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 01:01:28,867 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 01:01:28,868 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-15 01:01:28,873 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:01:28 BoogieIcfgContainer [2019-10-15 01:01:28,873 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 01:01:28,875 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 01:01:28,875 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 01:01:28,880 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 01:01:28,880 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:01:27" (1/3) ... [2019-10-15 01:01:28,881 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f64d8a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:01:28, skipping insertion in model container [2019-10-15 01:01:28,881 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:01:28" (2/3) ... [2019-10-15 01:01:28,881 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f64d8a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:01:28, skipping insertion in model container [2019-10-15 01:01:28,881 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:01:28" (3/3) ... [2019-10-15 01:01:28,883 INFO L109 eAbstractionObserver]: Analyzing ICFG rule60_list2.i [2019-10-15 01:01:28,894 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 01:01:28,902 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 01:01:28,913 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 01:01:28,951 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 01:01:28,951 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 01:01:28,952 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 01:01:28,952 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 01:01:28,952 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 01:01:28,952 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 01:01:28,953 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 01:01:28,953 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 01:01:28,974 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states. [2019-10-15 01:01:28,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-10-15 01:01:28,978 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:01:28,979 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:01:28,981 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:01:28,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:01:28,985 INFO L82 PathProgramCache]: Analyzing trace with hash 1135050545, now seen corresponding path program 1 times [2019-10-15 01:01:28,995 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:01:28,995 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885959986] [2019-10-15 01:01:28,995 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:01:28,996 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:01:28,996 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:01:29,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:01:29,205 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 01:01:29,206 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885959986] [2019-10-15 01:01:29,207 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:01:29,208 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-15 01:01:29,208 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434389570] [2019-10-15 01:01:29,212 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-15 01:01:29,214 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:01:29,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-15 01:01:29,230 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-15 01:01:29,232 INFO L87 Difference]: Start difference. First operand 47 states. Second operand 6 states. [2019-10-15 01:01:29,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:01:29,329 INFO L93 Difference]: Finished difference Result 84 states and 107 transitions. [2019-10-15 01:01:29,329 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-15 01:01:29,331 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2019-10-15 01:01:29,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:01:29,341 INFO L225 Difference]: With dead ends: 84 [2019-10-15 01:01:29,341 INFO L226 Difference]: Without dead ends: 39 [2019-10-15 01:01:29,345 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2019-10-15 01:01:29,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2019-10-15 01:01:29,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2019-10-15 01:01:29,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-10-15 01:01:29,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 44 transitions. [2019-10-15 01:01:29,406 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 44 transitions. Word has length 13 [2019-10-15 01:01:29,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:01:29,406 INFO L462 AbstractCegarLoop]: Abstraction has 39 states and 44 transitions. [2019-10-15 01:01:29,407 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-15 01:01:29,407 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 44 transitions. [2019-10-15 01:01:29,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-10-15 01:01:29,409 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:01:29,409 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:01:29,409 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:01:29,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:01:29,410 INFO L82 PathProgramCache]: Analyzing trace with hash -925661111, now seen corresponding path program 1 times [2019-10-15 01:01:29,410 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:01:29,410 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635221999] [2019-10-15 01:01:29,410 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:01:29,411 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:01:29,411 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:01:29,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:01:29,558 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-15 01:01:29,559 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635221999] [2019-10-15 01:01:29,559 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:01:29,559 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-15 01:01:29,560 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473035811] [2019-10-15 01:01:29,561 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 01:01:29,562 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:01:29,562 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 01:01:29,562 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-15 01:01:29,562 INFO L87 Difference]: Start difference. First operand 39 states and 44 transitions. Second operand 7 states. [2019-10-15 01:01:29,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:01:29,601 INFO L93 Difference]: Finished difference Result 63 states and 72 transitions. [2019-10-15 01:01:29,601 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 01:01:29,601 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 38 [2019-10-15 01:01:29,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:01:29,605 INFO L225 Difference]: With dead ends: 63 [2019-10-15 01:01:29,605 INFO L226 Difference]: Without dead ends: 44 [2019-10-15 01:01:29,606 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-15 01:01:29,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2019-10-15 01:01:29,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2019-10-15 01:01:29,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2019-10-15 01:01:29,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 49 transitions. [2019-10-15 01:01:29,619 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 49 transitions. Word has length 38 [2019-10-15 01:01:29,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:01:29,620 INFO L462 AbstractCegarLoop]: Abstraction has 44 states and 49 transitions. [2019-10-15 01:01:29,620 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 01:01:29,620 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 49 transitions. [2019-10-15 01:01:29,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-10-15 01:01:29,622 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:01:29,623 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:01:29,623 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:01:29,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:01:29,623 INFO L82 PathProgramCache]: Analyzing trace with hash -1219064118, now seen corresponding path program 1 times [2019-10-15 01:01:29,623 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:01:29,624 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887430652] [2019-10-15 01:01:29,624 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:01:29,624 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:01:29,624 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:01:29,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:01:29,792 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-15 01:01:29,792 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887430652] [2019-10-15 01:01:29,793 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1326501633] [2019-10-15 01:01:29,793 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 01:01:30,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:01:30,009 INFO L256 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 26 conjunts are in the unsatisfiable core [2019-10-15 01:01:30,022 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:01:30,384 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-15 01:01:30,385 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:01:30,808 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 01:01:31,038 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 01:01:31,063 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:01:31,064 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-15 01:01:31,064 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [7, 15] total 31 [2019-10-15 01:01:31,064 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032222112] [2019-10-15 01:01:31,065 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-10-15 01:01:31,065 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:01:31,066 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-10-15 01:01:31,066 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=819, Unknown=0, NotChecked=0, Total=930 [2019-10-15 01:01:31,067 INFO L87 Difference]: Start difference. First operand 44 states and 49 transitions. Second operand 13 states. [2019-10-15 01:01:31,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:01:31,758 INFO L93 Difference]: Finished difference Result 76 states and 87 transitions. [2019-10-15 01:01:31,758 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-10-15 01:01:31,759 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 38 [2019-10-15 01:01:31,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:01:31,762 INFO L225 Difference]: With dead ends: 76 [2019-10-15 01:01:31,762 INFO L226 Difference]: Without dead ends: 65 [2019-10-15 01:01:31,765 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 211 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=264, Invalid=1376, Unknown=0, NotChecked=0, Total=1640 [2019-10-15 01:01:31,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2019-10-15 01:01:31,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 57. [2019-10-15 01:01:31,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2019-10-15 01:01:31,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 66 transitions. [2019-10-15 01:01:31,788 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 66 transitions. Word has length 38 [2019-10-15 01:01:31,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:01:31,789 INFO L462 AbstractCegarLoop]: Abstraction has 57 states and 66 transitions. [2019-10-15 01:01:31,790 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-10-15 01:01:31,790 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 66 transitions. [2019-10-15 01:01:31,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2019-10-15 01:01:31,791 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:01:31,791 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:01:31,995 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:01:31,996 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:01:31,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:01:31,997 INFO L82 PathProgramCache]: Analyzing trace with hash -775693011, now seen corresponding path program 1 times [2019-10-15 01:01:31,997 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:01:31,997 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163841898] [2019-10-15 01:01:31,998 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:01:31,998 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:01:31,998 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:01:32,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:01:32,137 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-15 01:01:32,137 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163841898] [2019-10-15 01:01:32,138 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [640383478] [2019-10-15 01:01:32,138 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:01:32,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:01:32,266 INFO L256 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 31 conjunts are in the unsatisfiable core [2019-10-15 01:01:32,270 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:01:32,636 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-15 01:01:32,636 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:01:33,334 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 01:01:33,419 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:01:33,420 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [122823895] [2019-10-15 01:01:33,425 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 46 [2019-10-15 01:01:33,463 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-15 01:01:33,464 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-15 01:01:33,517 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-15 01:01:33,519 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 20 root evaluator evaluations with a maximum evaluation depth of 0. Performed 20 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 26 variables. [2019-10-15 01:01:33,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:01:33,522 INFO L536 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-15 01:01:33,555 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-10-15 01:01:33,556 INFO L551 sIntCurrentIteration]: Unifying AI predicates [2019-10-15 01:01:33,558 INFO L553 sIntCurrentIteration]: We unified 44 AI predicates to 44 [2019-10-15 01:01:33,558 INFO L562 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-15 01:01:33,558 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-10-15 01:01:33,559 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [7, 20, 22] total 41 [2019-10-15 01:01:33,559 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294197739] [2019-10-15 01:01:33,559 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 01:01:33,560 INFO L137 tionRefinementEngine]: Using predicate unifier AbsIntPredicateUnifier provided by strategy TAIPAN [2019-10-15 01:01:33,560 INFO L124 tionRefinementEngine]: Using hoare triple checker CachingHoareTripleCheckerMap provided by strategy [2019-10-15 01:01:33,560 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 01:01:33,561 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:01:33,561 INFO L87 Difference]: Start difference. First operand 57 states and 66 transitions. Second operand 2 states. [2019-10-15 01:01:33,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:01:33,564 INFO L93 Difference]: Finished difference Result 57 states and 66 transitions. [2019-10-15 01:01:33,565 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 01:01:33,565 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 45 [2019-10-15 01:01:33,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:01:33,565 INFO L225 Difference]: With dead ends: 57 [2019-10-15 01:01:33,565 INFO L226 Difference]: Without dead ends: 0 [2019-10-15 01:01:33,566 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 44 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 01:01:33,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-15 01:01:33,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-15 01:01:33,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-15 01:01:33,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-15 01:01:33,567 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 45 [2019-10-15 01:01:33,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:01:33,568 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-15 01:01:33,568 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 01:01:33,568 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-15 01:01:33,568 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-15 01:01:33,771 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:01:33,778 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-15 01:01:33,856 INFO L443 ceAbstractionStarter]: For program point my_mallocFINAL(lines 878 880) no Hoare annotation was computed. [2019-10-15 01:01:33,857 INFO L446 ceAbstractionStarter]: At program point L879(line 879) the Hoare annotation is: true [2019-10-15 01:01:33,857 INFO L443 ceAbstractionStarter]: For program point L879-1(line 879) no Hoare annotation was computed. [2019-10-15 01:01:33,857 INFO L446 ceAbstractionStarter]: At program point my_mallocENTRY(lines 878 880) the Hoare annotation is: true [2019-10-15 01:01:33,857 INFO L443 ceAbstractionStarter]: For program point my_mallocEXIT(lines 878 880) no Hoare annotation was computed. [2019-10-15 01:01:33,857 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-10-15 01:01:33,858 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-10-15 01:01:33,858 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-15 01:01:33,858 INFO L443 ceAbstractionStarter]: For program point L896(lines 896 897) no Hoare annotation was computed. [2019-10-15 01:01:33,858 INFO L443 ceAbstractionStarter]: For program point L896-2(lines 895 898) no Hoare annotation was computed. [2019-10-15 01:01:33,858 INFO L443 ceAbstractionStarter]: For program point list_delEXIT(lines 895 898) no Hoare annotation was computed. [2019-10-15 01:01:33,858 INFO L439 ceAbstractionStarter]: At program point list_delENTRY(lines 895 898) the Hoare annotation is: (or (not (<= 1 ~guard_malloc_counter~0.offset)) (not (<= |old(~elem~0.offset)| 0)) (<= ~elem~0.offset 0)) [2019-10-15 01:01:33,858 INFO L439 ceAbstractionStarter]: At program point list_addENTRY(lines 889 893) the Hoare annotation is: (or (not (<= 1 ~guard_malloc_counter~0.offset)) (not (<= |old(~elem~0.offset)| 0)) (not (<= 2 |list_add_#in~new.offset|)) (<= ~elem~0.offset 0)) [2019-10-15 01:01:33,859 INFO L443 ceAbstractionStarter]: For program point L891(lines 891 892) no Hoare annotation was computed. [2019-10-15 01:01:33,859 INFO L443 ceAbstractionStarter]: For program point L890(line 890) no Hoare annotation was computed. [2019-10-15 01:01:33,859 INFO L443 ceAbstractionStarter]: For program point L891-2(lines 889 893) no Hoare annotation was computed. [2019-10-15 01:01:33,859 INFO L439 ceAbstractionStarter]: At program point L890-2(line 890) the Hoare annotation is: (or (not (<= 1 ~guard_malloc_counter~0.offset)) (not (<= |old(~elem~0.offset)| 0)) (not (<= 2 |list_add_#in~new.offset|))) [2019-10-15 01:01:33,859 INFO L443 ceAbstractionStarter]: For program point L890-3(line 890) no Hoare annotation was computed. [2019-10-15 01:01:33,859 INFO L443 ceAbstractionStarter]: For program point list_addEXIT(lines 889 893) no Hoare annotation was computed. [2019-10-15 01:01:33,859 INFO L443 ceAbstractionStarter]: For program point __blast_assertEXIT(lines 4 7) no Hoare annotation was computed. [2019-10-15 01:01:33,860 INFO L443 ceAbstractionStarter]: For program point __blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 6) no Hoare annotation was computed. [2019-10-15 01:01:33,860 INFO L443 ceAbstractionStarter]: For program point __blast_assertFINAL(lines 4 7) no Hoare annotation was computed. [2019-10-15 01:01:33,860 INFO L446 ceAbstractionStarter]: At program point __blast_assertENTRY(lines 4 7) the Hoare annotation is: true [2019-10-15 01:01:33,860 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-15 01:01:33,860 INFO L439 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: false [2019-10-15 01:01:33,860 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-15 01:01:33,860 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-15 01:01:33,861 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 902 917) the Hoare annotation is: true [2019-10-15 01:01:33,861 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 902 917) no Hoare annotation was computed. [2019-10-15 01:01:33,861 INFO L446 ceAbstractionStarter]: At program point L909(line 909) the Hoare annotation is: true [2019-10-15 01:01:33,861 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 902 917) no Hoare annotation was computed. [2019-10-15 01:01:33,861 INFO L446 ceAbstractionStarter]: At program point L908(line 908) the Hoare annotation is: true [2019-10-15 01:01:33,861 INFO L446 ceAbstractionStarter]: At program point L907(line 907) the Hoare annotation is: true [2019-10-15 01:01:33,861 INFO L443 ceAbstractionStarter]: For program point L906(lines 906 915) no Hoare annotation was computed. [2019-10-15 01:01:33,862 INFO L446 ceAbstractionStarter]: At program point L907-1(line 907) the Hoare annotation is: true [2019-10-15 01:01:33,862 INFO L446 ceAbstractionStarter]: At program point L905(line 905) the Hoare annotation is: true [2019-10-15 01:01:33,862 INFO L443 ceAbstractionStarter]: For program point L906-1(lines 906 915) no Hoare annotation was computed. [2019-10-15 01:01:33,862 INFO L446 ceAbstractionStarter]: At program point L904(line 904) the Hoare annotation is: true [2019-10-15 01:01:33,862 INFO L443 ceAbstractionStarter]: For program point L905-1(line 905) no Hoare annotation was computed. [2019-10-15 01:01:33,862 INFO L443 ceAbstractionStarter]: For program point L904-1(line 904) no Hoare annotation was computed. [2019-10-15 01:01:33,862 INFO L446 ceAbstractionStarter]: At program point __getMemoryENTRY(lines 869 876) the Hoare annotation is: true [2019-10-15 01:01:33,863 INFO L443 ceAbstractionStarter]: For program point __getMemoryEXIT(lines 869 876) no Hoare annotation was computed. [2019-10-15 01:01:33,863 INFO L443 ceAbstractionStarter]: For program point __getMemoryFINAL(lines 869 876) no Hoare annotation was computed. [2019-10-15 01:01:33,863 INFO L443 ceAbstractionStarter]: For program point L873(lines 873 874) no Hoare annotation was computed. [2019-10-15 01:01:33,863 INFO L443 ceAbstractionStarter]: For program point L871(line 871) no Hoare annotation was computed. [2019-10-15 01:01:33,863 INFO L446 ceAbstractionStarter]: At program point L871-2(line 871) the Hoare annotation is: true [2019-10-15 01:01:33,863 INFO L443 ceAbstractionStarter]: For program point L871-3(line 871) no Hoare annotation was computed. [2019-10-15 01:01:33,867 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 01:01:33 BoogieIcfgContainer [2019-10-15 01:01:33,867 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-15 01:01:33,870 INFO L168 Benchmark]: Toolchain (without parser) took 6277.69 ms. Allocated memory was 139.5 MB in the beginning and 284.2 MB in the end (delta: 144.7 MB). Free memory was 103.3 MB in the beginning and 236.2 MB in the end (delta: -132.9 MB). Peak memory consumption was 11.8 MB. Max. memory is 7.1 GB. [2019-10-15 01:01:33,871 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 139.5 MB. Free memory was 122.7 MB in the beginning and 122.5 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2019-10-15 01:01:33,871 INFO L168 Benchmark]: CACSL2BoogieTranslator took 601.50 ms. Allocated memory was 139.5 MB in the beginning and 204.5 MB in the end (delta: 65.0 MB). Free memory was 103.1 MB in the beginning and 168.9 MB in the end (delta: -65.7 MB). Peak memory consumption was 25.7 MB. Max. memory is 7.1 GB. [2019-10-15 01:01:33,872 INFO L168 Benchmark]: Boogie Preprocessor took 72.49 ms. Allocated memory is still 204.5 MB. Free memory was 168.9 MB in the beginning and 166.2 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2019-10-15 01:01:33,873 INFO L168 Benchmark]: RCFGBuilder took 605.52 ms. Allocated memory is still 204.5 MB. Free memory was 166.2 MB in the beginning and 121.5 MB in the end (delta: 44.8 MB). Peak memory consumption was 44.8 MB. Max. memory is 7.1 GB. [2019-10-15 01:01:33,874 INFO L168 Benchmark]: TraceAbstraction took 4992.06 ms. Allocated memory was 204.5 MB in the beginning and 284.2 MB in the end (delta: 79.7 MB). Free memory was 120.8 MB in the beginning and 236.2 MB in the end (delta: -115.4 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-10-15 01:01:33,878 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 139.5 MB. Free memory was 122.7 MB in the beginning and 122.5 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 601.50 ms. Allocated memory was 139.5 MB in the beginning and 204.5 MB in the end (delta: 65.0 MB). Free memory was 103.1 MB in the beginning and 168.9 MB in the end (delta: -65.7 MB). Peak memory consumption was 25.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 72.49 ms. Allocated memory is still 204.5 MB. Free memory was 168.9 MB in the beginning and 166.2 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 605.52 ms. Allocated memory is still 204.5 MB. Free memory was 166.2 MB in the beginning and 121.5 MB in the end (delta: 44.8 MB). Peak memory consumption was 44.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4992.06 ms. Allocated memory was 204.5 MB in the beginning and 284.2 MB in the end (delta: 79.7 MB). Free memory was 120.8 MB in the beginning and 236.2 MB in the end (delta: -115.4 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 6]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 47 locations, 1 error locations. Result: SAFE, OverallTime: 4.9s, OverallIterations: 4, TraceHistogramMax: 2, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 129 SDtfs, 77 SDslu, 539 SDs, 0 SdLazy, 448 SolverSat, 43 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 151 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 212 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=57occurred in iteration=3, 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, 4 MinimizatonAttempts, 8 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 18 LocationsWithAnnotation, 53 PreInvPairs, 55 NumberOfFragments, 56 HoareAnnotationTreeSize, 53 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 18 FomulaSimplificationsInter, 17 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.6s InterpolantComputationTime, 217 NumberOfCodeBlocks, 217 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 292 ConstructedInterpolants, 0 QuantifiedInterpolants, 50571 SizeOfPredicates, 15 NumberOfNonLiveVariables, 494 ConjunctsInSsa, 57 ConjunctsInUnsatCore, 8 InterpolantComputations, 3 PerfectInterpolantSequences, 50/83 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: TIME[ms]: 97, ITERATIONS: 1, WAS_STRONG: 1, WEAKENING_RATIO: 1.0, AVG_VARS_REMOVED_DURING_WEAKENING: 1.4090909090909092, AVG_WEAKENED_CONJUNCTS: 0.0, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...