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/list-properties/list_search-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 21:04:28,213 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 21:04:28,216 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 21:04:28,235 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 21:04:28,235 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 21:04:28,237 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 21:04:28,239 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 21:04:28,248 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 21:04:28,252 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 21:04:28,256 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 21:04:28,257 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 21:04:28,259 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 21:04:28,259 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 21:04:28,261 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 21:04:28,263 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 21:04:28,264 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 21:04:28,266 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 21:04:28,267 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 21:04:28,268 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 21:04:28,272 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 21:04:28,276 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 21:04:28,279 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 21:04:28,280 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 21:04:28,280 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 21:04:28,282 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 21:04:28,282 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 21:04:28,283 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 21:04:28,283 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 21:04:28,284 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 21:04:28,285 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 21:04:28,285 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 21:04:28,286 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 21:04:28,286 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 21:04:28,287 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 21:04:28,288 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 21:04:28,288 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 21:04:28,289 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 21:04:28,289 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 21:04:28,289 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 21:04:28,290 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 21:04:28,291 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 21:04:28,291 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 [2019-10-13 21:04:28,318 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 21:04:28,318 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 21:04:28,321 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 21:04:28,321 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 21:04:28,321 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 21:04:28,322 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 21:04:28,322 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 21:04:28,324 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 21:04:28,324 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 21:04:28,325 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 21:04:28,325 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 21:04:28,325 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 21:04:28,327 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 21:04:28,328 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 21:04:28,328 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 21:04:28,328 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 21:04:28,328 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 21:04:28,328 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 21:04:28,329 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 21:04:28,329 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 21:04:28,329 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 21:04:28,329 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 21:04:28,329 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 21:04:28,330 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 21:04:28,330 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 21:04:28,331 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 21:04:28,332 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 21:04:28,332 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 21:04:28,332 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 [2019-10-13 21:04:28,625 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 21:04:28,645 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 21:04:28,648 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 21:04:28,650 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 21:04:28,650 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 21:04:28,651 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-properties/list_search-2.i [2019-10-13 21:04:28,732 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a388ef3fb/e71da4b1e959496d9c482228cb63a9eb/FLAG203bd432c [2019-10-13 21:04:29,372 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 21:04:29,372 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/list-properties/list_search-2.i [2019-10-13 21:04:29,388 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a388ef3fb/e71da4b1e959496d9c482228cb63a9eb/FLAG203bd432c [2019-10-13 21:04:29,617 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a388ef3fb/e71da4b1e959496d9c482228cb63a9eb [2019-10-13 21:04:29,625 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 21:04:29,627 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 21:04:29,627 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 21:04:29,628 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 21:04:29,630 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 21:04:29,631 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:04:29" (1/1) ... [2019-10-13 21:04:29,634 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40ea140a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:04:29, skipping insertion in model container [2019-10-13 21:04:29,635 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:04:29" (1/1) ... [2019-10-13 21:04:29,642 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 21:04:29,698 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 21:04:30,246 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:04:30,264 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 21:04:30,334 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:04:30,476 INFO L192 MainTranslator]: Completed translation [2019-10-13 21:04:30,477 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:04:30 WrapperNode [2019-10-13 21:04:30,477 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 21:04:30,478 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 21:04:30,478 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 21:04:30,478 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 21:04:30,494 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:04:30" (1/1) ... [2019-10-13 21:04:30,495 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:04:30" (1/1) ... [2019-10-13 21:04:30,541 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:04:30" (1/1) ... [2019-10-13 21:04:30,541 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:04:30" (1/1) ... [2019-10-13 21:04:30,586 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:04:30" (1/1) ... [2019-10-13 21:04:30,598 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:04:30" (1/1) ... [2019-10-13 21:04:30,609 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:04:30" (1/1) ... [2019-10-13 21:04:30,624 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 21:04:30,624 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 21:04:30,624 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 21:04:30,625 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 21:04:30,631 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:04:30" (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 [2019-10-13 21:04:30,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 21:04:30,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 21:04:30,699 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-13 21:04:30,699 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-10-13 21:04:30,700 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-10-13 21:04:30,700 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-10-13 21:04:30,700 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-10-13 21:04:30,701 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-10-13 21:04:30,702 INFO L138 BoogieDeclarations]: Found implementation of procedure search_list [2019-10-13 21:04:30,702 INFO L138 BoogieDeclarations]: Found implementation of procedure delete_list [2019-10-13 21:04:30,702 INFO L138 BoogieDeclarations]: Found implementation of procedure insert_list [2019-10-13 21:04:30,702 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 21:04:30,703 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 21:04:30,704 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-13 21:04:30,704 INFO L130 BoogieDeclarations]: Found specification of procedure __underflow [2019-10-13 21:04:30,704 INFO L130 BoogieDeclarations]: Found specification of procedure __uflow [2019-10-13 21:04:30,705 INFO L130 BoogieDeclarations]: Found specification of procedure __overflow [2019-10-13 21:04:30,705 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_getc [2019-10-13 21:04:30,705 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_putc [2019-10-13 21:04:30,706 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_feof [2019-10-13 21:04:30,706 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ferror [2019-10-13 21:04:30,706 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_peekc_locked [2019-10-13 21:04:30,706 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_flockfile [2019-10-13 21:04:30,706 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_funlockfile [2019-10-13 21:04:30,707 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ftrylockfile [2019-10-13 21:04:30,707 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfscanf [2019-10-13 21:04:30,707 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfprintf [2019-10-13 21:04:30,708 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_padn [2019-10-13 21:04:30,708 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_sgetn [2019-10-13 21:04:30,708 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekoff [2019-10-13 21:04:30,709 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekpos [2019-10-13 21:04:30,709 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_free_backup_area [2019-10-13 21:04:30,709 INFO L130 BoogieDeclarations]: Found specification of procedure remove [2019-10-13 21:04:30,709 INFO L130 BoogieDeclarations]: Found specification of procedure rename [2019-10-13 21:04:30,710 INFO L130 BoogieDeclarations]: Found specification of procedure renameat [2019-10-13 21:04:30,710 INFO L130 BoogieDeclarations]: Found specification of procedure tmpfile [2019-10-13 21:04:30,710 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam [2019-10-13 21:04:30,710 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam_r [2019-10-13 21:04:30,711 INFO L130 BoogieDeclarations]: Found specification of procedure tempnam [2019-10-13 21:04:30,711 INFO L130 BoogieDeclarations]: Found specification of procedure fclose [2019-10-13 21:04:30,711 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2019-10-13 21:04:30,711 INFO L130 BoogieDeclarations]: Found specification of procedure fflush_unlocked [2019-10-13 21:04:30,711 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2019-10-13 21:04:30,712 INFO L130 BoogieDeclarations]: Found specification of procedure freopen [2019-10-13 21:04:30,712 INFO L130 BoogieDeclarations]: Found specification of procedure fdopen [2019-10-13 21:04:30,712 INFO L130 BoogieDeclarations]: Found specification of procedure fmemopen [2019-10-13 21:04:30,712 INFO L130 BoogieDeclarations]: Found specification of procedure open_memstream [2019-10-13 21:04:30,712 INFO L130 BoogieDeclarations]: Found specification of procedure setbuf [2019-10-13 21:04:30,712 INFO L130 BoogieDeclarations]: Found specification of procedure setvbuf [2019-10-13 21:04:30,713 INFO L130 BoogieDeclarations]: Found specification of procedure setbuffer [2019-10-13 21:04:30,713 INFO L130 BoogieDeclarations]: Found specification of procedure setlinebuf [2019-10-13 21:04:30,713 INFO L130 BoogieDeclarations]: Found specification of procedure fprintf [2019-10-13 21:04:30,713 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 21:04:30,713 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2019-10-13 21:04:30,713 INFO L130 BoogieDeclarations]: Found specification of procedure vfprintf [2019-10-13 21:04:30,714 INFO L130 BoogieDeclarations]: Found specification of procedure vprintf [2019-10-13 21:04:30,714 INFO L130 BoogieDeclarations]: Found specification of procedure vsprintf [2019-10-13 21:04:30,714 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2019-10-13 21:04:30,714 INFO L130 BoogieDeclarations]: Found specification of procedure vsnprintf [2019-10-13 21:04:30,714 INFO L130 BoogieDeclarations]: Found specification of procedure vdprintf [2019-10-13 21:04:30,714 INFO L130 BoogieDeclarations]: Found specification of procedure dprintf [2019-10-13 21:04:30,715 INFO L130 BoogieDeclarations]: Found specification of procedure fscanf [2019-10-13 21:04:30,715 INFO L130 BoogieDeclarations]: Found specification of procedure scanf [2019-10-13 21:04:30,715 INFO L130 BoogieDeclarations]: Found specification of procedure sscanf [2019-10-13 21:04:30,715 INFO L130 BoogieDeclarations]: Found specification of procedure vfscanf [2019-10-13 21:04:30,716 INFO L130 BoogieDeclarations]: Found specification of procedure vscanf [2019-10-13 21:04:30,716 INFO L130 BoogieDeclarations]: Found specification of procedure vsscanf [2019-10-13 21:04:30,716 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc [2019-10-13 21:04:30,717 INFO L130 BoogieDeclarations]: Found specification of procedure getc [2019-10-13 21:04:30,717 INFO L130 BoogieDeclarations]: Found specification of procedure getchar [2019-10-13 21:04:30,717 INFO L130 BoogieDeclarations]: Found specification of procedure getc_unlocked [2019-10-13 21:04:30,717 INFO L130 BoogieDeclarations]: Found specification of procedure getchar_unlocked [2019-10-13 21:04:30,718 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc_unlocked [2019-10-13 21:04:30,718 INFO L130 BoogieDeclarations]: Found specification of procedure fputc [2019-10-13 21:04:30,719 INFO L130 BoogieDeclarations]: Found specification of procedure putc [2019-10-13 21:04:30,719 INFO L130 BoogieDeclarations]: Found specification of procedure putchar [2019-10-13 21:04:30,719 INFO L130 BoogieDeclarations]: Found specification of procedure fputc_unlocked [2019-10-13 21:04:30,719 INFO L130 BoogieDeclarations]: Found specification of procedure putc_unlocked [2019-10-13 21:04:30,719 INFO L130 BoogieDeclarations]: Found specification of procedure putchar_unlocked [2019-10-13 21:04:30,720 INFO L130 BoogieDeclarations]: Found specification of procedure getw [2019-10-13 21:04:30,720 INFO L130 BoogieDeclarations]: Found specification of procedure putw [2019-10-13 21:04:30,720 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2019-10-13 21:04:30,720 INFO L130 BoogieDeclarations]: Found specification of procedure __getdelim [2019-10-13 21:04:30,721 INFO L130 BoogieDeclarations]: Found specification of procedure getdelim [2019-10-13 21:04:30,721 INFO L130 BoogieDeclarations]: Found specification of procedure getline [2019-10-13 21:04:30,722 INFO L130 BoogieDeclarations]: Found specification of procedure fputs [2019-10-13 21:04:30,722 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-13 21:04:30,723 INFO L130 BoogieDeclarations]: Found specification of procedure ungetc [2019-10-13 21:04:30,723 INFO L130 BoogieDeclarations]: Found specification of procedure fread [2019-10-13 21:04:30,723 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite [2019-10-13 21:04:30,723 INFO L130 BoogieDeclarations]: Found specification of procedure fread_unlocked [2019-10-13 21:04:30,723 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite_unlocked [2019-10-13 21:04:30,723 INFO L130 BoogieDeclarations]: Found specification of procedure fseek [2019-10-13 21:04:30,723 INFO L130 BoogieDeclarations]: Found specification of procedure ftell [2019-10-13 21:04:30,724 INFO L130 BoogieDeclarations]: Found specification of procedure rewind [2019-10-13 21:04:30,724 INFO L130 BoogieDeclarations]: Found specification of procedure fseeko [2019-10-13 21:04:30,724 INFO L130 BoogieDeclarations]: Found specification of procedure ftello [2019-10-13 21:04:30,724 INFO L130 BoogieDeclarations]: Found specification of procedure fgetpos [2019-10-13 21:04:30,724 INFO L130 BoogieDeclarations]: Found specification of procedure fsetpos [2019-10-13 21:04:30,725 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr [2019-10-13 21:04:30,725 INFO L130 BoogieDeclarations]: Found specification of procedure feof [2019-10-13 21:04:30,725 INFO L130 BoogieDeclarations]: Found specification of procedure ferror [2019-10-13 21:04:30,725 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr_unlocked [2019-10-13 21:04:30,725 INFO L130 BoogieDeclarations]: Found specification of procedure feof_unlocked [2019-10-13 21:04:30,725 INFO L130 BoogieDeclarations]: Found specification of procedure ferror_unlocked [2019-10-13 21:04:30,726 INFO L130 BoogieDeclarations]: Found specification of procedure perror [2019-10-13 21:04:30,726 INFO L130 BoogieDeclarations]: Found specification of procedure fileno [2019-10-13 21:04:30,726 INFO L130 BoogieDeclarations]: Found specification of procedure fileno_unlocked [2019-10-13 21:04:30,726 INFO L130 BoogieDeclarations]: Found specification of procedure popen [2019-10-13 21:04:30,726 INFO L130 BoogieDeclarations]: Found specification of procedure pclose [2019-10-13 21:04:30,726 INFO L130 BoogieDeclarations]: Found specification of procedure ctermid [2019-10-13 21:04:30,727 INFO L130 BoogieDeclarations]: Found specification of procedure flockfile [2019-10-13 21:04:30,727 INFO L130 BoogieDeclarations]: Found specification of procedure ftrylockfile [2019-10-13 21:04:30,727 INFO L130 BoogieDeclarations]: Found specification of procedure funlockfile [2019-10-13 21:04:30,727 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-10-13 21:04:30,727 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-10-13 21:04:30,727 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-10-13 21:04:30,728 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-10-13 21:04:30,728 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-10-13 21:04:30,728 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-10-13 21:04:30,729 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-10-13 21:04:30,730 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-10-13 21:04:30,730 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-10-13 21:04:30,730 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-10-13 21:04:30,730 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-10-13 21:04:30,730 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-10-13 21:04:30,731 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-10-13 21:04:30,731 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-10-13 21:04:30,731 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-10-13 21:04:30,731 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-10-13 21:04:30,731 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-10-13 21:04:30,732 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-10-13 21:04:30,732 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-10-13 21:04:30,732 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-10-13 21:04:30,732 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-10-13 21:04:30,733 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-10-13 21:04:30,733 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-10-13 21:04:30,737 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-10-13 21:04:30,737 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-10-13 21:04:30,737 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-10-13 21:04:30,738 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-10-13 21:04:30,738 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-10-13 21:04:30,738 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-10-13 21:04:30,738 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-10-13 21:04:30,745 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-10-13 21:04:30,746 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-10-13 21:04:30,746 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-10-13 21:04:30,746 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-10-13 21:04:30,746 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-10-13 21:04:30,746 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-10-13 21:04:30,746 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-10-13 21:04:30,747 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-10-13 21:04:30,747 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-10-13 21:04:30,747 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-10-13 21:04:30,747 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-10-13 21:04:30,748 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-10-13 21:04:30,748 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-10-13 21:04:30,748 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-10-13 21:04:30,748 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-10-13 21:04:30,749 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-10-13 21:04:30,749 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-10-13 21:04:30,749 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-10-13 21:04:30,749 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-10-13 21:04:30,749 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-10-13 21:04:30,749 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-10-13 21:04:30,749 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-10-13 21:04:30,750 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-10-13 21:04:30,750 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-10-13 21:04:30,750 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-10-13 21:04:30,750 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 21:04:30,750 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-13 21:04:30,750 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-10-13 21:04:30,751 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 21:04:30,751 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-10-13 21:04:30,751 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-10-13 21:04:30,751 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-10-13 21:04:30,751 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-10-13 21:04:30,751 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-10-13 21:04:30,752 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-10-13 21:04:30,752 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-10-13 21:04:30,752 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-10-13 21:04:30,752 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-13 21:04:30,752 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-10-13 21:04:30,753 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-10-13 21:04:30,753 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-10-13 21:04:30,753 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-10-13 21:04:30,753 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-10-13 21:04:30,753 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-10-13 21:04:30,753 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-10-13 21:04:30,754 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-10-13 21:04:30,754 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-10-13 21:04:30,754 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-10-13 21:04:30,754 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-10-13 21:04:30,754 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-10-13 21:04:30,754 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-10-13 21:04:30,755 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-10-13 21:04:30,755 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-10-13 21:04:30,755 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-10-13 21:04:30,755 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-10-13 21:04:30,755 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-10-13 21:04:30,755 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-10-13 21:04:30,755 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-10-13 21:04:30,756 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-10-13 21:04:30,756 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-10-13 21:04:30,756 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-10-13 21:04:30,756 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-10-13 21:04:30,756 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-10-13 21:04:30,756 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-10-13 21:04:30,757 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-10-13 21:04:30,757 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-10-13 21:04:30,757 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-10-13 21:04:30,757 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-10-13 21:04:30,757 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-10-13 21:04:30,757 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-10-13 21:04:30,758 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-10-13 21:04:30,758 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-10-13 21:04:30,758 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-10-13 21:04:30,758 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-10-13 21:04:30,758 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-10-13 21:04:30,758 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-10-13 21:04:30,759 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-10-13 21:04:30,759 INFO L130 BoogieDeclarations]: Found specification of procedure search_list [2019-10-13 21:04:30,759 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 21:04:30,759 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 21:04:30,759 INFO L130 BoogieDeclarations]: Found specification of procedure delete_list [2019-10-13 21:04:30,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 21:04:30,760 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 21:04:30,760 INFO L130 BoogieDeclarations]: Found specification of procedure insert_list [2019-10-13 21:04:30,760 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 21:04:30,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 21:04:30,760 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 21:04:30,760 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 21:04:30,761 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 21:04:31,415 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 21:04:31,416 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-13 21:04:31,417 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:04:31 BoogieIcfgContainer [2019-10-13 21:04:31,417 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 21:04:31,418 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 21:04:31,418 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 21:04:31,421 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 21:04:31,422 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 09:04:29" (1/3) ... [2019-10-13 21:04:31,422 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b645eb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:04:31, skipping insertion in model container [2019-10-13 21:04:31,423 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:04:30" (2/3) ... [2019-10-13 21:04:31,423 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b645eb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:04:31, skipping insertion in model container [2019-10-13 21:04:31,423 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:04:31" (3/3) ... [2019-10-13 21:04:31,425 INFO L109 eAbstractionObserver]: Analyzing ICFG list_search-2.i [2019-10-13 21:04:31,435 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 21:04:31,442 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 21:04:31,453 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 21:04:31,476 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 21:04:31,477 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 21:04:31,477 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 21:04:31,477 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 21:04:31,477 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 21:04:31,477 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 21:04:31,477 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 21:04:31,477 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 21:04:31,492 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states. [2019-10-13 21:04:31,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-10-13 21:04:31,499 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:04:31,501 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 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, 1, 1, 1, 1, 1] [2019-10-13 21:04:31,503 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:04:31,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:04:31,509 INFO L82 PathProgramCache]: Analyzing trace with hash 694957185, now seen corresponding path program 1 times [2019-10-13 21:04:31,519 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:04:31,519 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445984882] [2019-10-13 21:04:31,519 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:04:31,520 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:04:31,520 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:04:31,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:04:31,846 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-10-13 21:04:31,847 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445984882] [2019-10-13 21:04:31,851 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:04:31,852 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 21:04:31,852 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737794355] [2019-10-13 21:04:31,858 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 21:04:31,860 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:04:31,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 21:04:31,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 21:04:31,873 INFO L87 Difference]: Start difference. First operand 52 states. Second operand 2 states. [2019-10-13 21:04:31,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:04:31,898 INFO L93 Difference]: Finished difference Result 84 states and 109 transitions. [2019-10-13 21:04:31,898 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 21:04:31,899 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2019-10-13 21:04:31,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:04:31,911 INFO L225 Difference]: With dead ends: 84 [2019-10-13 21:04:31,911 INFO L226 Difference]: Without dead ends: 34 [2019-10-13 21:04:31,917 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 [2019-10-13 21:04:31,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-10-13 21:04:31,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-10-13 21:04:31,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-10-13 21:04:31,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 40 transitions. [2019-10-13 21:04:31,967 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 40 transitions. Word has length 46 [2019-10-13 21:04:31,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:04:31,969 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 40 transitions. [2019-10-13 21:04:31,969 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 21:04:31,969 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 40 transitions. [2019-10-13 21:04:31,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2019-10-13 21:04:31,972 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:04:31,972 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:04:31,973 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:04:31,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:04:31,973 INFO L82 PathProgramCache]: Analyzing trace with hash 1251884926, now seen corresponding path program 1 times [2019-10-13 21:04:31,974 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:04:31,974 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643027691] [2019-10-13 21:04:31,974 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:04:31,974 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:04:31,974 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:04:32,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:04:32,216 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-13 21:04:32,217 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643027691] [2019-10-13 21:04:32,217 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:04:32,217 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 21:04:32,217 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456452364] [2019-10-13 21:04:32,220 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 21:04:32,221 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:04:32,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 21:04:32,223 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 21:04:32,223 INFO L87 Difference]: Start difference. First operand 34 states and 40 transitions. Second operand 5 states. [2019-10-13 21:04:32,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:04:32,342 INFO L93 Difference]: Finished difference Result 63 states and 78 transitions. [2019-10-13 21:04:32,342 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-13 21:04:32,342 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 48 [2019-10-13 21:04:32,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:04:32,344 INFO L225 Difference]: With dead ends: 63 [2019-10-13 21:04:32,344 INFO L226 Difference]: Without dead ends: 38 [2019-10-13 21:04:32,345 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-10-13 21:04:32,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2019-10-13 21:04:32,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 37. [2019-10-13 21:04:32,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2019-10-13 21:04:32,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 43 transitions. [2019-10-13 21:04:32,354 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 43 transitions. Word has length 48 [2019-10-13 21:04:32,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:04:32,355 INFO L462 AbstractCegarLoop]: Abstraction has 37 states and 43 transitions. [2019-10-13 21:04:32,355 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 21:04:32,355 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 43 transitions. [2019-10-13 21:04:32,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2019-10-13 21:04:32,357 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:04:32,357 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:04:32,357 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:04:32,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:04:32,358 INFO L82 PathProgramCache]: Analyzing trace with hash 1415498856, now seen corresponding path program 1 times [2019-10-13 21:04:32,358 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:04:32,358 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138562653] [2019-10-13 21:04:32,358 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:04:32,358 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:04:32,359 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:04:32,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:04:32,667 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2019-10-13 21:04:32,668 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138562653] [2019-10-13 21:04:32,668 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:04:32,668 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-13 21:04:32,669 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916844908] [2019-10-13 21:04:32,669 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-13 21:04:32,670 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:04:32,670 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-13 21:04:32,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2019-10-13 21:04:32,671 INFO L87 Difference]: Start difference. First operand 37 states and 43 transitions. Second operand 10 states. [2019-10-13 21:04:33,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:04:33,168 INFO L93 Difference]: Finished difference Result 55 states and 63 transitions. [2019-10-13 21:04:33,169 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-13 21:04:33,169 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 49 [2019-10-13 21:04:33,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:04:33,173 INFO L225 Difference]: With dead ends: 55 [2019-10-13 21:04:33,174 INFO L226 Difference]: Without dead ends: 46 [2019-10-13 21:04:33,176 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=240, Unknown=0, NotChecked=0, Total=306 [2019-10-13 21:04:33,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2019-10-13 21:04:33,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 40. [2019-10-13 21:04:33,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2019-10-13 21:04:33,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 47 transitions. [2019-10-13 21:04:33,198 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 47 transitions. Word has length 49 [2019-10-13 21:04:33,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:04:33,199 INFO L462 AbstractCegarLoop]: Abstraction has 40 states and 47 transitions. [2019-10-13 21:04:33,199 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-13 21:04:33,199 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 47 transitions. [2019-10-13 21:04:33,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2019-10-13 21:04:33,203 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:04:33,203 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:04:33,203 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:04:33,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:04:33,204 INFO L82 PathProgramCache]: Analyzing trace with hash 1022471846, now seen corresponding path program 1 times [2019-10-13 21:04:33,204 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:04:33,205 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328599873] [2019-10-13 21:04:33,205 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:04:33,205 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:04:33,205 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:04:33,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:04:33,318 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2019-10-13 21:04:33,319 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328599873] [2019-10-13 21:04:33,319 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:04:33,319 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 21:04:33,319 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400369377] [2019-10-13 21:04:33,320 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 21:04:33,320 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:04:33,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 21:04:33,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-13 21:04:33,321 INFO L87 Difference]: Start difference. First operand 40 states and 47 transitions. Second operand 7 states. [2019-10-13 21:04:33,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:04:33,460 INFO L93 Difference]: Finished difference Result 53 states and 61 transitions. [2019-10-13 21:04:33,460 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 21:04:33,460 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 49 [2019-10-13 21:04:33,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:04:33,462 INFO L225 Difference]: With dead ends: 53 [2019-10-13 21:04:33,462 INFO L226 Difference]: Without dead ends: 41 [2019-10-13 21:04:33,463 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2019-10-13 21:04:33,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2019-10-13 21:04:33,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 40. [2019-10-13 21:04:33,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2019-10-13 21:04:33,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 46 transitions. [2019-10-13 21:04:33,470 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 46 transitions. Word has length 49 [2019-10-13 21:04:33,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:04:33,471 INFO L462 AbstractCegarLoop]: Abstraction has 40 states and 46 transitions. [2019-10-13 21:04:33,471 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 21:04:33,471 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 46 transitions. [2019-10-13 21:04:33,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-10-13 21:04:33,472 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:04:33,472 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:04:33,472 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:04:33,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:04:33,473 INFO L82 PathProgramCache]: Analyzing trace with hash -1923734059, now seen corresponding path program 1 times [2019-10-13 21:04:33,473 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:04:33,473 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079472325] [2019-10-13 21:04:33,474 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:04:33,474 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:04:33,474 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:04:33,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:04:33,743 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-10-13 21:04:33,744 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079472325] [2019-10-13 21:04:33,744 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2120352180] [2019-10-13 21:04:33,744 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 [2019-10-13 21:04:33,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:04:33,974 INFO L256 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 21 conjunts are in the unsatisfiable core [2019-10-13 21:04:33,983 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 21:04:34,065 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2019-10-13 21:04:34,065 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 21:04:34,172 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2019-10-13 21:04:34,173 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-13 21:04:34,173 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [11, 5] total 15 [2019-10-13 21:04:34,173 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869724702] [2019-10-13 21:04:34,174 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 21:04:34,174 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:04:34,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 21:04:34,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2019-10-13 21:04:34,175 INFO L87 Difference]: Start difference. First operand 40 states and 46 transitions. Second operand 5 states. [2019-10-13 21:04:34,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:04:34,285 INFO L93 Difference]: Finished difference Result 74 states and 84 transitions. [2019-10-13 21:04:34,286 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 21:04:34,286 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 52 [2019-10-13 21:04:34,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:04:34,287 INFO L225 Difference]: With dead ends: 74 [2019-10-13 21:04:34,287 INFO L226 Difference]: Without dead ends: 43 [2019-10-13 21:04:34,288 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 102 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2019-10-13 21:04:34,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2019-10-13 21:04:34,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2019-10-13 21:04:34,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2019-10-13 21:04:34,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 47 transitions. [2019-10-13 21:04:34,295 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 47 transitions. Word has length 52 [2019-10-13 21:04:34,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:04:34,295 INFO L462 AbstractCegarLoop]: Abstraction has 43 states and 47 transitions. [2019-10-13 21:04:34,295 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 21:04:34,296 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 47 transitions. [2019-10-13 21:04:34,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-10-13 21:04:34,297 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:04:34,297 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:04:34,503 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:04:34,503 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:04:34,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:04:34,504 INFO L82 PathProgramCache]: Analyzing trace with hash 125653783, now seen corresponding path program 1 times [2019-10-13 21:04:34,505 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:04:34,505 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672747867] [2019-10-13 21:04:34,505 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:04:34,506 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:04:34,506 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:04:34,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:04:34,710 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-10-13 21:04:34,710 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672747867] [2019-10-13 21:04:34,711 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1426508908] [2019-10-13 21:04:34,711 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 [2019-10-13 21:04:34,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:04:34,915 INFO L256 TraceCheckSpWp]: Trace formula consists of 345 conjuncts, 28 conjunts are in the unsatisfiable core [2019-10-13 21:04:34,923 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 21:04:34,945 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 21:04:35,037 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 15 treesize of output 7 [2019-10-13 21:04:35,038 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-13 21:04:35,041 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-13 21:04:35,042 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-13 21:04:35,042 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:15, output treesize:3 [2019-10-13 21:04:35,071 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2019-10-13 21:04:35,072 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 21:04:35,206 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 21:04:35,212 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 16 treesize of output 8 [2019-10-13 21:04:35,212 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-13 21:04:35,216 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-13 21:04:35,217 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-13 21:04:35,217 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:20, output treesize:8 [2019-10-13 21:04:35,267 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2019-10-13 21:04:35,267 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [626332977] [2019-10-13 21:04:35,273 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 53 [2019-10-13 21:04:35,307 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-13 21:04:35,307 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-13 21:04:35,371 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-13 21:04:35,373 INFO L272 AbstractInterpreter]: Visited 8 different actions 8 times. Never merged. Never widened. Performed 43 root evaluator evaluations with a maximum evaluation depth of 0. Performed 43 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 34 variables. [2019-10-13 21:04:35,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:04:35,377 INFO L536 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-13 21:04:35,617 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:04:35,619 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: There is no value of variable insert_list_#in~l.base. at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalState.getValue(NonrelationalState.java:147) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.SingletonVariableExpressionEvaluator.lambda$0(SingletonVariableExpressionEvaluator.java:83) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.util.typeutils.TypeUtils.applyVariableFunctionPerType(TypeUtils.java:114) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.util.typeutils.TypeUtils.applyVariableFunction(TypeUtils.java:103) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.SingletonVariableExpressionEvaluator.evaluate(SingletonVariableExpressionEvaluator.java:89) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.SingletonVariableExpressionEvaluator.evaluate(SingletonVariableExpressionEvaluator.java:1) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.Evaluator.evaluate(Evaluator.java:96) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalEvaluator.evaluate(NonrelationalEvaluator.java:81) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.handleSingleAssignment(NonrelationalStatementProcessor.java:245) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.handleMultiAssignment(NonrelationalStatementProcessor.java:202) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.handleAssignment(NonrelationalStatementProcessor.java:191) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.processStatement(NonrelationalStatementProcessor.java:153) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.process(NonrelationalStatementProcessor.java:138) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.process(NonrelationalStatementProcessor.java:107) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.handleInternalTransition(NonrelationalPostOperator.java:422) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.handleInternalTransition(NonrelationalPostOperator.java:413) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.apply(NonrelationalPostOperator.java:140) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.apply(NonrelationalPostOperator.java:1) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.absint.DisjunctiveAbstractState.lambda$17(DisjunctiveAbstractState.java:323) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.absint.DisjunctiveAbstractState.mapCollection(DisjunctiveAbstractState.java:519) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.absint.DisjunctiveAbstractState.apply(DisjunctiveAbstractState.java:323) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.AbsIntHoareTripleChecker.checkInternalTransitionWithValidState(AbsIntHoareTripleChecker.java:353) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.AbsIntHoareTripleChecker.checkInternalAbsInt(AbsIntHoareTripleChecker.java:250) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.AbsIntHoareTripleChecker.checkInternal(AbsIntHoareTripleChecker.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.CachingHoareTripleChecker.checkInternal(CachingHoareTripleChecker.java:98) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.weakener.AbsIntPredicateInterpolantSequenceWeakener.determineInductivity(AbsIntPredicateInterpolantSequenceWeakener.java:146) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.weakener.AbsIntPredicateInterpolantSequenceWeakener.refinePreState(AbsIntPredicateInterpolantSequenceWeakener.java:111) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.weakener.AbsIntPredicateInterpolantSequenceWeakener.refinePreState(AbsIntPredicateInterpolantSequenceWeakener.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.weakener.InterpolantSequenceWeakener.generateResult(InterpolantSequenceWeakener.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.weakener.InterpolantSequenceWeakener.(InterpolantSequenceWeakener.java:111) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.weakener.AbsIntPredicateInterpolantSequenceWeakener.(AbsIntPredicateInterpolantSequenceWeakener.java:103) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarAbsIntRunner$AbsIntCurrentIteration.weakenPredicates(CegarAbsIntRunner.java:580) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarAbsIntRunner$AbsIntCurrentIteration.createInterpolantGenerator(CegarAbsIntRunner.java:545) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarAbsIntRunner$AbsIntCurrentIteration.getInterpolantGenerator(CegarAbsIntRunner.java:522) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarAbsIntRunner.getInterpolantGenerator(CegarAbsIntRunner.java:271) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleAbstractInterpretation.construct(IpTcStrategyModuleAbstractInterpretation.java:81) 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) 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) [2019-10-13 21:04:35,626 INFO L168 Benchmark]: Toolchain (without parser) took 5998.50 ms. Allocated memory was 139.5 MB in the beginning and 287.3 MB in the end (delta: 147.8 MB). Free memory was 101.8 MB in the beginning and 166.8 MB in the end (delta: -65.0 MB). Peak memory consumption was 82.9 MB. Max. memory is 7.1 GB. [2019-10-13 21:04:35,626 INFO L168 Benchmark]: CDTParser took 1.24 ms. Allocated memory is still 139.5 MB. Free memory was 122.3 MB in the beginning and 122.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-13 21:04:35,628 INFO L168 Benchmark]: CACSL2BoogieTranslator took 850.17 ms. Allocated memory was 139.5 MB in the beginning and 205.0 MB in the end (delta: 65.5 MB). Free memory was 101.6 MB in the beginning and 147.9 MB in the end (delta: -46.4 MB). Peak memory consumption was 24.6 MB. Max. memory is 7.1 GB. [2019-10-13 21:04:35,628 INFO L168 Benchmark]: Boogie Preprocessor took 145.88 ms. Allocated memory is still 205.0 MB. Free memory was 147.9 MB in the beginning and 143.9 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. [2019-10-13 21:04:35,629 INFO L168 Benchmark]: RCFGBuilder took 793.20 ms. Allocated memory was 205.0 MB in the beginning and 237.5 MB in the end (delta: 32.5 MB). Free memory was 143.9 MB in the beginning and 191.2 MB in the end (delta: -47.2 MB). Peak memory consumption was 56.6 MB. Max. memory is 7.1 GB. [2019-10-13 21:04:35,630 INFO L168 Benchmark]: TraceAbstraction took 4205.30 ms. Allocated memory was 237.5 MB in the beginning and 287.3 MB in the end (delta: 49.8 MB). Free memory was 191.2 MB in the beginning and 166.8 MB in the end (delta: 24.4 MB). Peak memory consumption was 74.2 MB. Max. memory is 7.1 GB. [2019-10-13 21:04:35,634 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.24 ms. Allocated memory is still 139.5 MB. Free memory was 122.3 MB in the beginning and 122.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 850.17 ms. Allocated memory was 139.5 MB in the beginning and 205.0 MB in the end (delta: 65.5 MB). Free memory was 101.6 MB in the beginning and 147.9 MB in the end (delta: -46.4 MB). Peak memory consumption was 24.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 145.88 ms. Allocated memory is still 205.0 MB. Free memory was 147.9 MB in the beginning and 143.9 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 793.20 ms. Allocated memory was 205.0 MB in the beginning and 237.5 MB in the end (delta: 32.5 MB). Free memory was 143.9 MB in the beginning and 191.2 MB in the end (delta: -47.2 MB). Peak memory consumption was 56.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4205.30 ms. Allocated memory was 237.5 MB in the beginning and 287.3 MB in the end (delta: 49.8 MB). Free memory was 191.2 MB in the beginning and 166.8 MB in the end (delta: 24.4 MB). Peak memory consumption was 74.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: There is no value of variable insert_list_#in~l.base. de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: There is no value of variable insert_list_#in~l.base.: de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalState.getValue(NonrelationalState.java:147) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...