/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --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-fb55353 [2019-11-07 00:31:08,278 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 00:31:08,281 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 00:31:08,299 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 00:31:08,300 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 00:31:08,302 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 00:31:08,304 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 00:31:08,316 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 00:31:08,317 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 00:31:08,319 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 00:31:08,320 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 00:31:08,321 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 00:31:08,322 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 00:31:08,323 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 00:31:08,324 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 00:31:08,325 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 00:31:08,326 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 00:31:08,327 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 00:31:08,328 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 00:31:08,330 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 00:31:08,333 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 00:31:08,336 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 00:31:08,339 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 00:31:08,339 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 00:31:08,342 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-07 00:31:08,342 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-07 00:31:08,344 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-07 00:31:08,345 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-07 00:31:08,347 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-07 00:31:08,348 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-07 00:31:08,348 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-07 00:31:08,351 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-07 00:31:08,352 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-07 00:31:08,353 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-07 00:31:08,354 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-07 00:31:08,357 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-07 00:31:08,358 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-07 00:31:08,358 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-07 00:31:08,358 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 00:31:08,359 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 00:31:08,362 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 00:31:08,364 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-07 00:31:08,391 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 00:31:08,391 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 00:31:08,393 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 00:31:08,393 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 00:31:08,393 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 00:31:08,394 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 00:31:08,394 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 00:31:08,394 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 00:31:08,394 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 00:31:08,394 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 00:31:08,396 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 00:31:08,396 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 00:31:08,396 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 00:31:08,396 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 00:31:08,397 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 00:31:08,397 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 00:31:08,397 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 00:31:08,397 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 00:31:08,397 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 00:31:08,398 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 00:31:08,398 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 00:31:08,398 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 00:31:08,398 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 00:31:08,398 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 00:31:08,399 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 00:31:08,400 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 00:31:08,400 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 00:31:08,401 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 00:31:08,401 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 [2019-11-07 00:31:08,669 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 00:31:08,689 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 00:31:08,693 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 00:31:08,695 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 00:31:08,696 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 00:31:08,696 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-properties/list_search-2.i [2019-11-07 00:31:08,770 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d5482362/30b21ab5cd284f76956b9842bc3af07a/FLAG74df00498 [2019-11-07 00:31:09,340 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 00:31:09,341 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/list-properties/list_search-2.i [2019-11-07 00:31:09,358 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d5482362/30b21ab5cd284f76956b9842bc3af07a/FLAG74df00498 [2019-11-07 00:31:09,593 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d5482362/30b21ab5cd284f76956b9842bc3af07a [2019-11-07 00:31:09,603 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 00:31:09,604 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 00:31:09,605 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 00:31:09,605 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 00:31:09,609 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 00:31:09,610 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:31:09" (1/1) ... [2019-11-07 00:31:09,613 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2556634b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:31:09, skipping insertion in model container [2019-11-07 00:31:09,614 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:31:09" (1/1) ... [2019-11-07 00:31:09,621 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 00:31:09,669 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 00:31:10,186 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 00:31:10,201 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 00:31:10,253 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 00:31:10,360 INFO L192 MainTranslator]: Completed translation [2019-11-07 00:31:10,361 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:31:10 WrapperNode [2019-11-07 00:31:10,361 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 00:31:10,361 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 00:31:10,362 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 00:31:10,362 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 00:31:10,377 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:31:10" (1/1) ... [2019-11-07 00:31:10,377 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:31:10" (1/1) ... [2019-11-07 00:31:10,398 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:31:10" (1/1) ... [2019-11-07 00:31:10,400 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:31:10" (1/1) ... [2019-11-07 00:31:10,427 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:31:10" (1/1) ... [2019-11-07 00:31:10,433 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:31:10" (1/1) ... [2019-11-07 00:31:10,438 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:31:10" (1/1) ... [2019-11-07 00:31:10,448 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 00:31:10,449 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 00:31:10,449 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 00:31:10,449 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 00:31:10,450 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:31:10" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 00:31:10,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 00:31:10,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 00:31:10,512 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-11-07 00:31:10,512 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-07 00:31:10,512 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-07 00:31:10,513 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-11-07 00:31:10,513 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-11-07 00:31:10,513 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-11-07 00:31:10,513 INFO L138 BoogieDeclarations]: Found implementation of procedure search_list [2019-11-07 00:31:10,513 INFO L138 BoogieDeclarations]: Found implementation of procedure delete_list [2019-11-07 00:31:10,514 INFO L138 BoogieDeclarations]: Found implementation of procedure insert_list [2019-11-07 00:31:10,514 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 00:31:10,514 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 00:31:10,514 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-11-07 00:31:10,514 INFO L130 BoogieDeclarations]: Found specification of procedure __underflow [2019-11-07 00:31:10,515 INFO L130 BoogieDeclarations]: Found specification of procedure __uflow [2019-11-07 00:31:10,515 INFO L130 BoogieDeclarations]: Found specification of procedure __overflow [2019-11-07 00:31:10,515 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_getc [2019-11-07 00:31:10,515 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_putc [2019-11-07 00:31:10,515 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_feof [2019-11-07 00:31:10,516 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ferror [2019-11-07 00:31:10,516 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_peekc_locked [2019-11-07 00:31:10,516 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_flockfile [2019-11-07 00:31:10,516 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_funlockfile [2019-11-07 00:31:10,516 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ftrylockfile [2019-11-07 00:31:10,517 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfscanf [2019-11-07 00:31:10,517 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfprintf [2019-11-07 00:31:10,517 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_padn [2019-11-07 00:31:10,517 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_sgetn [2019-11-07 00:31:10,517 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekoff [2019-11-07 00:31:10,518 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekpos [2019-11-07 00:31:10,518 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_free_backup_area [2019-11-07 00:31:10,518 INFO L130 BoogieDeclarations]: Found specification of procedure remove [2019-11-07 00:31:10,518 INFO L130 BoogieDeclarations]: Found specification of procedure rename [2019-11-07 00:31:10,518 INFO L130 BoogieDeclarations]: Found specification of procedure renameat [2019-11-07 00:31:10,519 INFO L130 BoogieDeclarations]: Found specification of procedure tmpfile [2019-11-07 00:31:10,519 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam [2019-11-07 00:31:10,519 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam_r [2019-11-07 00:31:10,519 INFO L130 BoogieDeclarations]: Found specification of procedure tempnam [2019-11-07 00:31:10,519 INFO L130 BoogieDeclarations]: Found specification of procedure fclose [2019-11-07 00:31:10,519 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2019-11-07 00:31:10,520 INFO L130 BoogieDeclarations]: Found specification of procedure fflush_unlocked [2019-11-07 00:31:10,520 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2019-11-07 00:31:10,520 INFO L130 BoogieDeclarations]: Found specification of procedure freopen [2019-11-07 00:31:10,520 INFO L130 BoogieDeclarations]: Found specification of procedure fdopen [2019-11-07 00:31:10,520 INFO L130 BoogieDeclarations]: Found specification of procedure fmemopen [2019-11-07 00:31:10,521 INFO L130 BoogieDeclarations]: Found specification of procedure open_memstream [2019-11-07 00:31:10,521 INFO L130 BoogieDeclarations]: Found specification of procedure setbuf [2019-11-07 00:31:10,521 INFO L130 BoogieDeclarations]: Found specification of procedure setvbuf [2019-11-07 00:31:10,521 INFO L130 BoogieDeclarations]: Found specification of procedure setbuffer [2019-11-07 00:31:10,521 INFO L130 BoogieDeclarations]: Found specification of procedure setlinebuf [2019-11-07 00:31:10,521 INFO L130 BoogieDeclarations]: Found specification of procedure fprintf [2019-11-07 00:31:10,522 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-11-07 00:31:10,522 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2019-11-07 00:31:10,522 INFO L130 BoogieDeclarations]: Found specification of procedure vfprintf [2019-11-07 00:31:10,522 INFO L130 BoogieDeclarations]: Found specification of procedure vprintf [2019-11-07 00:31:10,522 INFO L130 BoogieDeclarations]: Found specification of procedure vsprintf [2019-11-07 00:31:10,522 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2019-11-07 00:31:10,523 INFO L130 BoogieDeclarations]: Found specification of procedure vsnprintf [2019-11-07 00:31:10,523 INFO L130 BoogieDeclarations]: Found specification of procedure vdprintf [2019-11-07 00:31:10,523 INFO L130 BoogieDeclarations]: Found specification of procedure dprintf [2019-11-07 00:31:10,523 INFO L130 BoogieDeclarations]: Found specification of procedure fscanf [2019-11-07 00:31:10,523 INFO L130 BoogieDeclarations]: Found specification of procedure scanf [2019-11-07 00:31:10,524 INFO L130 BoogieDeclarations]: Found specification of procedure sscanf [2019-11-07 00:31:10,524 INFO L130 BoogieDeclarations]: Found specification of procedure vfscanf [2019-11-07 00:31:10,524 INFO L130 BoogieDeclarations]: Found specification of procedure vscanf [2019-11-07 00:31:10,524 INFO L130 BoogieDeclarations]: Found specification of procedure vsscanf [2019-11-07 00:31:10,524 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc [2019-11-07 00:31:10,525 INFO L130 BoogieDeclarations]: Found specification of procedure getc [2019-11-07 00:31:10,525 INFO L130 BoogieDeclarations]: Found specification of procedure getchar [2019-11-07 00:31:10,525 INFO L130 BoogieDeclarations]: Found specification of procedure getc_unlocked [2019-11-07 00:31:10,525 INFO L130 BoogieDeclarations]: Found specification of procedure getchar_unlocked [2019-11-07 00:31:10,525 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc_unlocked [2019-11-07 00:31:10,525 INFO L130 BoogieDeclarations]: Found specification of procedure fputc [2019-11-07 00:31:10,526 INFO L130 BoogieDeclarations]: Found specification of procedure putc [2019-11-07 00:31:10,526 INFO L130 BoogieDeclarations]: Found specification of procedure putchar [2019-11-07 00:31:10,526 INFO L130 BoogieDeclarations]: Found specification of procedure fputc_unlocked [2019-11-07 00:31:10,526 INFO L130 BoogieDeclarations]: Found specification of procedure putc_unlocked [2019-11-07 00:31:10,526 INFO L130 BoogieDeclarations]: Found specification of procedure putchar_unlocked [2019-11-07 00:31:10,527 INFO L130 BoogieDeclarations]: Found specification of procedure getw [2019-11-07 00:31:10,527 INFO L130 BoogieDeclarations]: Found specification of procedure putw [2019-11-07 00:31:10,527 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2019-11-07 00:31:10,527 INFO L130 BoogieDeclarations]: Found specification of procedure __getdelim [2019-11-07 00:31:10,527 INFO L130 BoogieDeclarations]: Found specification of procedure getdelim [2019-11-07 00:31:10,528 INFO L130 BoogieDeclarations]: Found specification of procedure getline [2019-11-07 00:31:10,528 INFO L130 BoogieDeclarations]: Found specification of procedure fputs [2019-11-07 00:31:10,528 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-11-07 00:31:10,528 INFO L130 BoogieDeclarations]: Found specification of procedure ungetc [2019-11-07 00:31:10,528 INFO L130 BoogieDeclarations]: Found specification of procedure fread [2019-11-07 00:31:10,528 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite [2019-11-07 00:31:10,529 INFO L130 BoogieDeclarations]: Found specification of procedure fread_unlocked [2019-11-07 00:31:10,529 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite_unlocked [2019-11-07 00:31:10,529 INFO L130 BoogieDeclarations]: Found specification of procedure fseek [2019-11-07 00:31:10,529 INFO L130 BoogieDeclarations]: Found specification of procedure ftell [2019-11-07 00:31:10,529 INFO L130 BoogieDeclarations]: Found specification of procedure rewind [2019-11-07 00:31:10,529 INFO L130 BoogieDeclarations]: Found specification of procedure fseeko [2019-11-07 00:31:10,530 INFO L130 BoogieDeclarations]: Found specification of procedure ftello [2019-11-07 00:31:10,530 INFO L130 BoogieDeclarations]: Found specification of procedure fgetpos [2019-11-07 00:31:10,530 INFO L130 BoogieDeclarations]: Found specification of procedure fsetpos [2019-11-07 00:31:10,530 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr [2019-11-07 00:31:10,530 INFO L130 BoogieDeclarations]: Found specification of procedure feof [2019-11-07 00:31:10,531 INFO L130 BoogieDeclarations]: Found specification of procedure ferror [2019-11-07 00:31:10,531 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr_unlocked [2019-11-07 00:31:10,531 INFO L130 BoogieDeclarations]: Found specification of procedure feof_unlocked [2019-11-07 00:31:10,531 INFO L130 BoogieDeclarations]: Found specification of procedure ferror_unlocked [2019-11-07 00:31:10,531 INFO L130 BoogieDeclarations]: Found specification of procedure perror [2019-11-07 00:31:10,531 INFO L130 BoogieDeclarations]: Found specification of procedure fileno [2019-11-07 00:31:10,532 INFO L130 BoogieDeclarations]: Found specification of procedure fileno_unlocked [2019-11-07 00:31:10,532 INFO L130 BoogieDeclarations]: Found specification of procedure popen [2019-11-07 00:31:10,532 INFO L130 BoogieDeclarations]: Found specification of procedure pclose [2019-11-07 00:31:10,532 INFO L130 BoogieDeclarations]: Found specification of procedure ctermid [2019-11-07 00:31:10,532 INFO L130 BoogieDeclarations]: Found specification of procedure flockfile [2019-11-07 00:31:10,532 INFO L130 BoogieDeclarations]: Found specification of procedure ftrylockfile [2019-11-07 00:31:10,533 INFO L130 BoogieDeclarations]: Found specification of procedure funlockfile [2019-11-07 00:31:10,533 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-07 00:31:10,533 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-07 00:31:10,533 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-07 00:31:10,533 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-07 00:31:10,533 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-07 00:31:10,534 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-07 00:31:10,534 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-07 00:31:10,534 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-07 00:31:10,534 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-07 00:31:10,534 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-07 00:31:10,535 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-07 00:31:10,535 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-07 00:31:10,535 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-07 00:31:10,535 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-07 00:31:10,535 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-07 00:31:10,535 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-07 00:31:10,536 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-07 00:31:10,536 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-07 00:31:10,536 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-11-07 00:31:10,537 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-11-07 00:31:10,537 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-11-07 00:31:10,537 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-07 00:31:10,537 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-07 00:31:10,537 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-07 00:31:10,538 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-07 00:31:10,538 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-07 00:31:10,538 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-07 00:31:10,538 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-07 00:31:10,538 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-07 00:31:10,539 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-07 00:31:10,539 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-07 00:31:10,539 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-07 00:31:10,539 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-07 00:31:10,539 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-07 00:31:10,540 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-07 00:31:10,540 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-07 00:31:10,540 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-07 00:31:10,540 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-07 00:31:10,540 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-07 00:31:10,541 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-07 00:31:10,541 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-07 00:31:10,541 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-07 00:31:10,541 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-07 00:31:10,542 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-07 00:31:10,542 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-07 00:31:10,542 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-07 00:31:10,542 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-07 00:31:10,542 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-07 00:31:10,543 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-07 00:31:10,543 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-07 00:31:10,543 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-07 00:31:10,543 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-07 00:31:10,543 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-07 00:31:10,543 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-07 00:31:10,544 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-07 00:31:10,544 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-07 00:31:10,544 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-07 00:31:10,544 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-07 00:31:10,544 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-07 00:31:10,545 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-07 00:31:10,545 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-07 00:31:10,545 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-07 00:31:10,545 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-07 00:31:10,545 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-07 00:31:10,546 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-07 00:31:10,546 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-07 00:31:10,546 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-07 00:31:10,546 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-07 00:31:10,546 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-07 00:31:10,546 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-07 00:31:10,547 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-07 00:31:10,547 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-07 00:31:10,547 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-07 00:31:10,547 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-07 00:31:10,547 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-07 00:31:10,547 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-07 00:31:10,548 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-07 00:31:10,548 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-07 00:31:10,548 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-07 00:31:10,548 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-07 00:31:10,548 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-07 00:31:10,548 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-07 00:31:10,549 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-07 00:31:10,549 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-07 00:31:10,549 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-07 00:31:10,549 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-07 00:31:10,549 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-07 00:31:10,549 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-07 00:31:10,549 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-07 00:31:10,550 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-07 00:31:10,550 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-07 00:31:10,550 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-07 00:31:10,550 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-07 00:31:10,550 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-07 00:31:10,551 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-07 00:31:10,551 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-07 00:31:10,551 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-07 00:31:10,553 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-07 00:31:10,553 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-07 00:31:10,553 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-07 00:31:10,553 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-07 00:31:10,554 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-07 00:31:10,554 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-07 00:31:10,555 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-07 00:31:10,555 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-07 00:31:10,555 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-07 00:31:10,555 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-07 00:31:10,555 INFO L130 BoogieDeclarations]: Found specification of procedure search_list [2019-11-07 00:31:10,555 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-07 00:31:10,556 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-07 00:31:10,556 INFO L130 BoogieDeclarations]: Found specification of procedure delete_list [2019-11-07 00:31:10,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-07 00:31:10,556 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-07 00:31:10,556 INFO L130 BoogieDeclarations]: Found specification of procedure insert_list [2019-11-07 00:31:10,556 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-07 00:31:10,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-07 00:31:10,557 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 00:31:10,557 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 00:31:10,557 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 00:31:11,254 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 00:31:11,254 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-07 00:31:11,255 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:31:11 BoogieIcfgContainer [2019-11-07 00:31:11,256 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 00:31:11,257 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 00:31:11,257 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 00:31:11,260 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 00:31:11,261 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:31:09" (1/3) ... [2019-11-07 00:31:11,262 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e782015 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:31:11, skipping insertion in model container [2019-11-07 00:31:11,262 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:31:10" (2/3) ... [2019-11-07 00:31:11,262 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e782015 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:31:11, skipping insertion in model container [2019-11-07 00:31:11,262 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:31:11" (3/3) ... [2019-11-07 00:31:11,264 INFO L109 eAbstractionObserver]: Analyzing ICFG list_search-2.i [2019-11-07 00:31:11,275 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 00:31:11,284 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 00:31:11,296 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 00:31:11,323 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 00:31:11,324 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 00:31:11,324 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 00:31:11,324 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 00:31:11,324 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 00:31:11,324 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 00:31:11,324 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 00:31:11,324 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 00:31:11,344 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states. [2019-11-07 00:31:11,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-11-07 00:31:11,352 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:31:11,353 INFO L410 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] [2019-11-07 00:31:11,355 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:31:11,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:31:11,362 INFO L82 PathProgramCache]: Analyzing trace with hash 694957185, now seen corresponding path program 1 times [2019-11-07 00:31:11,373 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:31:11,373 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86810338] [2019-11-07 00:31:11,374 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:31:11,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:31:11,713 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-11-07 00:31:11,714 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86810338] [2019-11-07 00:31:11,715 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:31:11,715 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-07 00:31:11,716 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658642767] [2019-11-07 00:31:11,728 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-07 00:31:11,732 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:31:11,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-07 00:31:11,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-07 00:31:11,754 INFO L87 Difference]: Start difference. First operand 52 states. Second operand 2 states. [2019-11-07 00:31:11,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:31:11,801 INFO L93 Difference]: Finished difference Result 84 states and 109 transitions. [2019-11-07 00:31:11,801 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-07 00:31:11,803 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2019-11-07 00:31:11,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:31:11,820 INFO L225 Difference]: With dead ends: 84 [2019-11-07 00:31:11,820 INFO L226 Difference]: Without dead ends: 34 [2019-11-07 00:31:11,829 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-07 00:31:11,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-11-07 00:31:11,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-11-07 00:31:11,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-11-07 00:31:11,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 40 transitions. [2019-11-07 00:31:11,902 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 40 transitions. Word has length 46 [2019-11-07 00:31:11,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:31:11,904 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 40 transitions. [2019-11-07 00:31:11,904 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-07 00:31:11,904 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 40 transitions. [2019-11-07 00:31:11,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2019-11-07 00:31:11,910 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:31:11,910 INFO L410 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] [2019-11-07 00:31:11,910 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:31:11,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:31:11,911 INFO L82 PathProgramCache]: Analyzing trace with hash 1251884926, now seen corresponding path program 1 times [2019-11-07 00:31:11,911 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:31:11,912 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388097600] [2019-11-07 00:31:11,912 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:31:12,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:31:12,149 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-11-07 00:31:12,150 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388097600] [2019-11-07 00:31:12,150 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:31:12,150 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-07 00:31:12,150 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240420804] [2019-11-07 00:31:12,152 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-07 00:31:12,152 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:31:12,153 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-07 00:31:12,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-07 00:31:12,153 INFO L87 Difference]: Start difference. First operand 34 states and 40 transitions. Second operand 5 states. [2019-11-07 00:31:12,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:31:12,249 INFO L93 Difference]: Finished difference Result 63 states and 78 transitions. [2019-11-07 00:31:12,250 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-07 00:31:12,250 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 48 [2019-11-07 00:31:12,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:31:12,252 INFO L225 Difference]: With dead ends: 63 [2019-11-07 00:31:12,252 INFO L226 Difference]: Without dead ends: 38 [2019-11-07 00:31:12,253 INFO L630 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 [2019-11-07 00:31:12,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2019-11-07 00:31:12,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 37. [2019-11-07 00:31:12,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2019-11-07 00:31:12,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 43 transitions. [2019-11-07 00:31:12,262 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 43 transitions. Word has length 48 [2019-11-07 00:31:12,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:31:12,263 INFO L462 AbstractCegarLoop]: Abstraction has 37 states and 43 transitions. [2019-11-07 00:31:12,263 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-07 00:31:12,263 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 43 transitions. [2019-11-07 00:31:12,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2019-11-07 00:31:12,265 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:31:12,265 INFO L410 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] [2019-11-07 00:31:12,266 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:31:12,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:31:12,266 INFO L82 PathProgramCache]: Analyzing trace with hash 1415498856, now seen corresponding path program 1 times [2019-11-07 00:31:12,266 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:31:12,267 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397952048] [2019-11-07 00:31:12,267 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:31:12,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:31:12,518 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2019-11-07 00:31:12,519 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397952048] [2019-11-07 00:31:12,519 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:31:12,520 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-11-07 00:31:12,520 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817629073] [2019-11-07 00:31:12,521 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-07 00:31:12,521 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:31:12,522 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-07 00:31:12,522 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2019-11-07 00:31:12,522 INFO L87 Difference]: Start difference. First operand 37 states and 43 transitions. Second operand 10 states. [2019-11-07 00:31:13,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:31:13,023 INFO L93 Difference]: Finished difference Result 55 states and 63 transitions. [2019-11-07 00:31:13,025 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-07 00:31:13,025 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 49 [2019-11-07 00:31:13,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:31:13,037 INFO L225 Difference]: With dead ends: 55 [2019-11-07 00:31:13,037 INFO L226 Difference]: Without dead ends: 46 [2019-11-07 00:31:13,038 INFO L630 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 [2019-11-07 00:31:13,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2019-11-07 00:31:13,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 40. [2019-11-07 00:31:13,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2019-11-07 00:31:13,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 47 transitions. [2019-11-07 00:31:13,060 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 47 transitions. Word has length 49 [2019-11-07 00:31:13,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:31:13,066 INFO L462 AbstractCegarLoop]: Abstraction has 40 states and 47 transitions. [2019-11-07 00:31:13,066 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-07 00:31:13,066 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 47 transitions. [2019-11-07 00:31:13,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2019-11-07 00:31:13,068 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:31:13,068 INFO L410 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] [2019-11-07 00:31:13,069 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:31:13,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:31:13,069 INFO L82 PathProgramCache]: Analyzing trace with hash 1022471846, now seen corresponding path program 1 times [2019-11-07 00:31:13,069 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:31:13,069 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467343682] [2019-11-07 00:31:13,070 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:31:13,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:31:13,194 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2019-11-07 00:31:13,195 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467343682] [2019-11-07 00:31:13,195 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:31:13,195 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-07 00:31:13,196 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932816122] [2019-11-07 00:31:13,196 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-07 00:31:13,196 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:31:13,197 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-07 00:31:13,197 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-11-07 00:31:13,197 INFO L87 Difference]: Start difference. First operand 40 states and 47 transitions. Second operand 7 states. [2019-11-07 00:31:13,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:31:13,353 INFO L93 Difference]: Finished difference Result 53 states and 61 transitions. [2019-11-07 00:31:13,354 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-07 00:31:13,354 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 49 [2019-11-07 00:31:13,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:31:13,355 INFO L225 Difference]: With dead ends: 53 [2019-11-07 00:31:13,355 INFO L226 Difference]: Without dead ends: 41 [2019-11-07 00:31:13,359 INFO L630 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 [2019-11-07 00:31:13,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2019-11-07 00:31:13,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 40. [2019-11-07 00:31:13,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2019-11-07 00:31:13,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 46 transitions. [2019-11-07 00:31:13,375 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 46 transitions. Word has length 49 [2019-11-07 00:31:13,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:31:13,375 INFO L462 AbstractCegarLoop]: Abstraction has 40 states and 46 transitions. [2019-11-07 00:31:13,375 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-07 00:31:13,375 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 46 transitions. [2019-11-07 00:31:13,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-11-07 00:31:13,382 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:31:13,382 INFO L410 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] [2019-11-07 00:31:13,382 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:31:13,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:31:13,383 INFO L82 PathProgramCache]: Analyzing trace with hash -1923734059, now seen corresponding path program 1 times [2019-11-07 00:31:13,383 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:31:13,383 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453813842] [2019-11-07 00:31:13,383 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:31:13,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:31:13,671 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-11-07 00:31:13,671 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453813842] [2019-11-07 00:31:13,671 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1872605929] [2019-11-07 00:31:13,672 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 00:31:13,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:31:13,908 INFO L256 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 21 conjunts are in the unsatisfiable core [2019-11-07 00:31:13,917 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 00:31:13,996 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2019-11-07 00:31:13,997 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 00:31:14,106 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2019-11-07 00:31:14,107 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-11-07 00:31:14,107 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [11, 5] total 15 [2019-11-07 00:31:14,107 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094833113] [2019-11-07 00:31:14,108 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-07 00:31:14,108 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:31:14,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-07 00:31:14,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2019-11-07 00:31:14,109 INFO L87 Difference]: Start difference. First operand 40 states and 46 transitions. Second operand 5 states. [2019-11-07 00:31:14,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:31:14,226 INFO L93 Difference]: Finished difference Result 74 states and 84 transitions. [2019-11-07 00:31:14,228 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-07 00:31:14,228 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 52 [2019-11-07 00:31:14,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:31:14,229 INFO L225 Difference]: With dead ends: 74 [2019-11-07 00:31:14,229 INFO L226 Difference]: Without dead ends: 43 [2019-11-07 00:31:14,230 INFO L630 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 [2019-11-07 00:31:14,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2019-11-07 00:31:14,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2019-11-07 00:31:14,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2019-11-07 00:31:14,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 47 transitions. [2019-11-07 00:31:14,238 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 47 transitions. Word has length 52 [2019-11-07 00:31:14,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:31:14,238 INFO L462 AbstractCegarLoop]: Abstraction has 43 states and 47 transitions. [2019-11-07 00:31:14,238 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-07 00:31:14,238 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 47 transitions. [2019-11-07 00:31:14,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-11-07 00:31:14,239 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:31:14,239 INFO L410 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] [2019-11-07 00:31:14,445 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 00:31:14,446 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:31:14,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:31:14,446 INFO L82 PathProgramCache]: Analyzing trace with hash 125653783, now seen corresponding path program 1 times [2019-11-07 00:31:14,447 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:31:14,447 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232636476] [2019-11-07 00:31:14,447 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:31:14,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:31:14,642 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-11-07 00:31:14,642 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232636476] [2019-11-07 00:31:14,643 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [25129937] [2019-11-07 00:31:14,643 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 [2019-11-07 00:31:14,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:31:14,843 INFO L256 TraceCheckSpWp]: Trace formula consists of 345 conjuncts, 28 conjunts are in the unsatisfiable core [2019-11-07 00:31:14,849 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 00:31:14,868 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 00:31:14,955 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 [2019-11-07 00:31:14,955 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-07 00:31:14,960 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-07 00:31:14,961 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-07 00:31:14,961 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:15, output treesize:3 [2019-11-07 00:31:14,995 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2019-11-07 00:31:14,995 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 00:31:15,131 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 00:31:15,145 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 [2019-11-07 00:31:15,145 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-07 00:31:15,149 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-07 00:31:15,150 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-07 00:31:15,150 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:20, output treesize:8 [2019-11-07 00:31:15,207 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2019-11-07 00:31:15,208 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [1503894031] [2019-11-07 00:31:15,213 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 53 [2019-11-07 00:31:15,247 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-11-07 00:31:15,247 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-11-07 00:31:15,311 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-11-07 00:31:15,313 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. [2019-11-07 00:31:15,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:31:15,317 INFO L536 sIntCurrentIteration]: Generating AbsInt predicates [2019-11-07 00:31:15,557 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 00:31:15,559 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.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:294) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:188) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:178) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:83) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:463) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-11-07 00:31:15,567 INFO L168 Benchmark]: Toolchain (without parser) took 5960.24 ms. Allocated memory was 138.9 MB in the beginning and 287.8 MB in the end (delta: 148.9 MB). Free memory was 100.4 MB in the beginning and 160.4 MB in the end (delta: -60.0 MB). Peak memory consumption was 88.9 MB. Max. memory is 7.1 GB. [2019-11-07 00:31:15,570 INFO L168 Benchmark]: CDTParser took 1.23 ms. Allocated memory is still 138.9 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-11-07 00:31:15,574 INFO L168 Benchmark]: CACSL2BoogieTranslator took 755.92 ms. Allocated memory was 138.9 MB in the beginning and 204.5 MB in the end (delta: 65.5 MB). Free memory was 100.2 MB in the beginning and 148.3 MB in the end (delta: -48.1 MB). Peak memory consumption was 25.0 MB. Max. memory is 7.1 GB. [2019-11-07 00:31:15,575 INFO L168 Benchmark]: Boogie Preprocessor took 86.77 ms. Allocated memory is still 204.5 MB. Free memory was 148.3 MB in the beginning and 144.3 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. [2019-11-07 00:31:15,575 INFO L168 Benchmark]: RCFGBuilder took 807.16 ms. Allocated memory was 204.5 MB in the beginning and 236.5 MB in the end (delta: 32.0 MB). Free memory was 144.3 MB in the beginning and 191.2 MB in the end (delta: -46.9 MB). Peak memory consumption was 57.7 MB. Max. memory is 7.1 GB. [2019-11-07 00:31:15,580 INFO L168 Benchmark]: TraceAbstraction took 4306.32 ms. Allocated memory was 236.5 MB in the beginning and 287.8 MB in the end (delta: 51.4 MB). Free memory was 191.2 MB in the beginning and 160.4 MB in the end (delta: 30.8 MB). Peak memory consumption was 82.2 MB. Max. memory is 7.1 GB. [2019-11-07 00:31:15,587 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.23 ms. Allocated memory is still 138.9 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 755.92 ms. Allocated memory was 138.9 MB in the beginning and 204.5 MB in the end (delta: 65.5 MB). Free memory was 100.2 MB in the beginning and 148.3 MB in the end (delta: -48.1 MB). Peak memory consumption was 25.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 86.77 ms. Allocated memory is still 204.5 MB. Free memory was 148.3 MB in the beginning and 144.3 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 807.16 ms. Allocated memory was 204.5 MB in the beginning and 236.5 MB in the end (delta: 32.0 MB). Free memory was 144.3 MB in the beginning and 191.2 MB in the end (delta: -46.9 MB). Peak memory consumption was 57.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4306.32 ms. Allocated memory was 236.5 MB in the beginning and 287.8 MB in the end (delta: 51.4 MB). Free memory was 191.2 MB in the beginning and 160.4 MB in the end (delta: 30.8 MB). Peak memory consumption was 82.2 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...