/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-simple/sll2n_insert_unequal.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 00:32:17,485 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 00:32:17,488 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 00:32:17,506 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 00:32:17,506 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 00:32:17,508 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 00:32:17,510 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 00:32:17,519 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 00:32:17,524 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 00:32:17,528 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 00:32:17,529 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 00:32:17,531 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 00:32:17,531 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 00:32:17,533 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 00:32:17,535 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 00:32:17,537 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 00:32:17,538 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 00:32:17,539 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 00:32:17,541 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 00:32:17,545 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 00:32:17,549 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 00:32:17,552 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 00:32:17,554 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 00:32:17,555 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 00:32:17,557 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-07 00:32:17,558 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-07 00:32:17,558 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-07 00:32:17,560 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-07 00:32:17,560 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-07 00:32:17,562 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-07 00:32:17,562 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-07 00:32:17,564 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-07 00:32:17,565 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-07 00:32:17,566 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-07 00:32:17,568 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-07 00:32:17,568 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-07 00:32:17,569 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-07 00:32:17,569 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-07 00:32:17,569 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 00:32:17,570 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 00:32:17,570 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 00:32:17,571 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 00:32:17,598 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 00:32:17,599 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 00:32:17,602 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 00:32:17,603 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 00:32:17,603 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 00:32:17,603 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 00:32:17,603 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 00:32:17,603 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 00:32:17,608 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 00:32:17,609 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 00:32:17,609 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 00:32:17,609 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 00:32:17,609 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 00:32:17,609 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 00:32:17,610 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 00:32:17,610 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 00:32:17,610 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 00:32:17,610 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 00:32:17,611 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 00:32:17,611 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 00:32:17,611 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 00:32:17,611 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 00:32:17,611 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 00:32:17,612 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 00:32:17,612 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 00:32:17,612 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 00:32:17,612 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 00:32:17,612 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 00:32:17,612 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 00:32:17,887 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 00:32:17,904 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 00:32:17,909 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 00:32:17,911 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 00:32:17,911 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 00:32:17,912 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-simple/sll2n_insert_unequal.i [2019-11-07 00:32:17,981 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a54144cf7/ad85c049ebc248948ea563c54c86e7d4/FLAG3f66c3773 [2019-11-07 00:32:18,542 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 00:32:18,543 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/list-simple/sll2n_insert_unequal.i [2019-11-07 00:32:18,565 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a54144cf7/ad85c049ebc248948ea563c54c86e7d4/FLAG3f66c3773 [2019-11-07 00:32:18,784 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a54144cf7/ad85c049ebc248948ea563c54c86e7d4 [2019-11-07 00:32:18,792 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 00:32:18,793 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 00:32:18,794 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 00:32:18,794 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 00:32:18,798 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 00:32:18,799 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:32:18" (1/1) ... [2019-11-07 00:32:18,802 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58208859 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:32:18, skipping insertion in model container [2019-11-07 00:32:18,802 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:32:18" (1/1) ... [2019-11-07 00:32:18,810 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 00:32:18,862 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 00:32:19,265 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 00:32:19,276 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 00:32:19,324 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 00:32:19,381 INFO L192 MainTranslator]: Completed translation [2019-11-07 00:32:19,381 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:32:19 WrapperNode [2019-11-07 00:32:19,381 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 00:32:19,382 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 00:32:19,382 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 00:32:19,382 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 00:32:19,395 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:32:19" (1/1) ... [2019-11-07 00:32:19,395 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:32:19" (1/1) ... [2019-11-07 00:32:19,418 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:32:19" (1/1) ... [2019-11-07 00:32:19,418 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:32:19" (1/1) ... [2019-11-07 00:32:19,434 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:32:19" (1/1) ... [2019-11-07 00:32:19,443 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:32:19" (1/1) ... [2019-11-07 00:32:19,449 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:32:19" (1/1) ... [2019-11-07 00:32:19,457 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 00:32:19,460 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 00:32:19,460 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 00:32:19,460 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 00:32:19,461 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:32:19" (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 00:32:19,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 00:32:19,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 00:32:19,518 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-07 00:32:19,519 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-07 00:32:19,519 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2019-11-07 00:32:19,519 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2019-11-07 00:32:19,519 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_create [2019-11-07 00:32:19,519 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_destroy [2019-11-07 00:32:19,520 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_insert [2019-11-07 00:32:19,520 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 00:32:19,520 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 00:32:19,520 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-07 00:32:19,520 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-07 00:32:19,521 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-07 00:32:19,521 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-07 00:32:19,521 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-07 00:32:19,521 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-07 00:32:19,521 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-07 00:32:19,521 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-07 00:32:19,522 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-07 00:32:19,522 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-07 00:32:19,522 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-07 00:32:19,522 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-07 00:32:19,522 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-07 00:32:19,522 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-07 00:32:19,523 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-07 00:32:19,523 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-07 00:32:19,523 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-07 00:32:19,523 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-07 00:32:19,523 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-07 00:32:19,523 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-07 00:32:19,524 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-07 00:32:19,524 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-07 00:32:19,524 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-07 00:32:19,524 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-07 00:32:19,524 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-07 00:32:19,524 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-07 00:32:19,525 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-07 00:32:19,525 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-07 00:32:19,525 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-07 00:32:19,525 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-07 00:32:19,525 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-07 00:32:19,526 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-07 00:32:19,526 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-07 00:32:19,526 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-07 00:32:19,526 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-07 00:32:19,526 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-07 00:32:19,526 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-07 00:32:19,527 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-07 00:32:19,527 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-07 00:32:19,527 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-07 00:32:19,527 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-07 00:32:19,527 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-07 00:32:19,527 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-07 00:32:19,527 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-07 00:32:19,528 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-07 00:32:19,528 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-07 00:32:19,528 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-07 00:32:19,528 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-07 00:32:19,528 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-07 00:32:19,528 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-07 00:32:19,529 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-07 00:32:19,529 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-07 00:32:19,529 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-07 00:32:19,529 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-07 00:32:19,529 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-07 00:32:19,529 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-07 00:32:19,530 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-07 00:32:19,530 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-11-07 00:32:19,530 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-07 00:32:19,530 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-07 00:32:19,530 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-07 00:32:19,530 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-07 00:32:19,530 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-07 00:32:19,531 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-07 00:32:19,531 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-07 00:32:19,531 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-07 00:32:19,531 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-07 00:32:19,531 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-07 00:32:19,531 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-07 00:32:19,532 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-07 00:32:19,532 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-07 00:32:19,532 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-07 00:32:19,532 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-07 00:32:19,532 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-07 00:32:19,532 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-07 00:32:19,533 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-07 00:32:19,533 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-07 00:32:19,533 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-07 00:32:19,533 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-07 00:32:19,533 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-07 00:32:19,533 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-07 00:32:19,533 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-07 00:32:19,534 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-07 00:32:19,534 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-07 00:32:19,534 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-07 00:32:19,534 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-07 00:32:19,534 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-07 00:32:19,534 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-07 00:32:19,535 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-07 00:32:19,535 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-07 00:32:19,535 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-07 00:32:19,535 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-07 00:32:19,535 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-07 00:32:19,535 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-07 00:32:19,535 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-07 00:32:19,536 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-07 00:32:19,536 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-07 00:32:19,536 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-07 00:32:19,536 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-07 00:32:19,536 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-07 00:32:19,536 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-07 00:32:19,536 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-07 00:32:19,537 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-07 00:32:19,537 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-07 00:32:19,537 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-07 00:32:19,537 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-07 00:32:19,537 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2019-11-07 00:32:19,537 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2019-11-07 00:32:19,537 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-07 00:32:19,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-07 00:32:19,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-07 00:32:19,538 INFO L130 BoogieDeclarations]: Found specification of procedure sll_create [2019-11-07 00:32:19,538 INFO L130 BoogieDeclarations]: Found specification of procedure sll_destroy [2019-11-07 00:32:19,538 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-07 00:32:19,538 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-07 00:32:19,538 INFO L130 BoogieDeclarations]: Found specification of procedure sll_insert [2019-11-07 00:32:19,539 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 00:32:19,539 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-07 00:32:19,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-07 00:32:19,539 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-07 00:32:19,539 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 00:32:19,539 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 00:32:19,936 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2019-11-07 00:32:20,144 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 00:32:20,144 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-07 00:32:20,145 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:32:20 BoogieIcfgContainer [2019-11-07 00:32:20,146 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 00:32:20,147 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 00:32:20,147 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 00:32:20,150 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 00:32:20,150 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:32:18" (1/3) ... [2019-11-07 00:32:20,151 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b6205c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:32:20, skipping insertion in model container [2019-11-07 00:32:20,151 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:32:19" (2/3) ... [2019-11-07 00:32:20,151 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b6205c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:32:20, skipping insertion in model container [2019-11-07 00:32:20,152 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:32:20" (3/3) ... [2019-11-07 00:32:20,153 INFO L109 eAbstractionObserver]: Analyzing ICFG sll2n_insert_unequal.i [2019-11-07 00:32:20,163 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 00:32:20,171 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 00:32:20,182 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 00:32:20,209 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 00:32:20,209 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 00:32:20,209 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 00:32:20,209 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 00:32:20,210 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 00:32:20,210 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 00:32:20,210 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 00:32:20,210 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 00:32:20,235 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states. [2019-11-07 00:32:20,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-11-07 00:32:20,244 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:32:20,245 INFO L410 BasicCegarLoop]: trace histogram [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 00:32:20,252 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:32:20,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:32:20,258 INFO L82 PathProgramCache]: Analyzing trace with hash -1925718240, now seen corresponding path program 1 times [2019-11-07 00:32:20,270 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:32:20,271 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692412674] [2019-11-07 00:32:20,271 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:32:20,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:32:20,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 00:32:20,485 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692412674] [2019-11-07 00:32:20,487 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:32:20,487 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-07 00:32:20,489 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491818077] [2019-11-07 00:32:20,497 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-07 00:32:20,499 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:32:20,516 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-07 00:32:20,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-07 00:32:20,520 INFO L87 Difference]: Start difference. First operand 53 states. Second operand 2 states. [2019-11-07 00:32:20,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:32:20,565 INFO L93 Difference]: Finished difference Result 94 states and 125 transitions. [2019-11-07 00:32:20,566 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-07 00:32:20,567 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 31 [2019-11-07 00:32:20,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:32:20,583 INFO L225 Difference]: With dead ends: 94 [2019-11-07 00:32:20,584 INFO L226 Difference]: Without dead ends: 40 [2019-11-07 00:32:20,589 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 00:32:20,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2019-11-07 00:32:20,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2019-11-07 00:32:20,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2019-11-07 00:32:20,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 48 transitions. [2019-11-07 00:32:20,661 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 48 transitions. Word has length 31 [2019-11-07 00:32:20,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:32:20,662 INFO L462 AbstractCegarLoop]: Abstraction has 40 states and 48 transitions. [2019-11-07 00:32:20,662 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-07 00:32:20,662 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 48 transitions. [2019-11-07 00:32:20,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-11-07 00:32:20,664 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:32:20,664 INFO L410 BasicCegarLoop]: trace histogram [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 00:32:20,665 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:32:20,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:32:20,665 INFO L82 PathProgramCache]: Analyzing trace with hash 1001067800, now seen corresponding path program 1 times [2019-11-07 00:32:20,666 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:32:20,666 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850263219] [2019-11-07 00:32:20,666 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:32:20,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:32:20,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 00:32:20,838 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850263219] [2019-11-07 00:32:20,839 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:32:20,839 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 00:32:20,839 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798986079] [2019-11-07 00:32:20,841 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 00:32:20,841 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:32:20,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 00:32:20,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:32:20,842 INFO L87 Difference]: Start difference. First operand 40 states and 48 transitions. Second operand 3 states. [2019-11-07 00:32:20,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:32:20,864 INFO L93 Difference]: Finished difference Result 58 states and 72 transitions. [2019-11-07 00:32:20,865 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 00:32:20,865 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 31 [2019-11-07 00:32:20,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:32:20,868 INFO L225 Difference]: With dead ends: 58 [2019-11-07 00:32:20,868 INFO L226 Difference]: Without dead ends: 45 [2019-11-07 00:32:20,869 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:32:20,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2019-11-07 00:32:20,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 42. [2019-11-07 00:32:20,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2019-11-07 00:32:20,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 51 transitions. [2019-11-07 00:32:20,878 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 51 transitions. Word has length 31 [2019-11-07 00:32:20,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:32:20,880 INFO L462 AbstractCegarLoop]: Abstraction has 42 states and 51 transitions. [2019-11-07 00:32:20,880 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 00:32:20,880 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 51 transitions. [2019-11-07 00:32:20,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-11-07 00:32:20,882 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:32:20,882 INFO L410 BasicCegarLoop]: trace histogram [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 00:32:20,882 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:32:20,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:32:20,883 INFO L82 PathProgramCache]: Analyzing trace with hash 191721174, now seen corresponding path program 1 times [2019-11-07 00:32:20,883 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:32:20,883 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064380375] [2019-11-07 00:32:20,883 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:32:20,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:32:21,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 00:32:21,081 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064380375] [2019-11-07 00:32:21,081 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:32:21,081 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-11-07 00:32:21,082 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238917082] [2019-11-07 00:32:21,082 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-07 00:32:21,082 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:32:21,083 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-07 00:32:21,083 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2019-11-07 00:32:21,083 INFO L87 Difference]: Start difference. First operand 42 states and 51 transitions. Second operand 9 states. [2019-11-07 00:32:21,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:32:21,251 INFO L93 Difference]: Finished difference Result 79 states and 97 transitions. [2019-11-07 00:32:21,253 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-07 00:32:21,253 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 31 [2019-11-07 00:32:21,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:32:21,255 INFO L225 Difference]: With dead ends: 79 [2019-11-07 00:32:21,255 INFO L226 Difference]: Without dead ends: 49 [2019-11-07 00:32:21,256 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2019-11-07 00:32:21,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2019-11-07 00:32:21,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 43. [2019-11-07 00:32:21,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2019-11-07 00:32:21,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 52 transitions. [2019-11-07 00:32:21,276 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 52 transitions. Word has length 31 [2019-11-07 00:32:21,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:32:21,276 INFO L462 AbstractCegarLoop]: Abstraction has 43 states and 52 transitions. [2019-11-07 00:32:21,276 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-07 00:32:21,277 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 52 transitions. [2019-11-07 00:32:21,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2019-11-07 00:32:21,281 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:32:21,281 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:32:21,281 INFO L410 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:32:21,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:32:21,288 INFO L82 PathProgramCache]: Analyzing trace with hash -833744621, now seen corresponding path program 1 times [2019-11-07 00:32:21,288 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:32:21,288 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013752269] [2019-11-07 00:32:21,288 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:32:21,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:32:21,482 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-11-07 00:32:21,482 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013752269] [2019-11-07 00:32:21,483 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1186419743] [2019-11-07 00:32:21,483 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 00:32:21,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:32:21,669 INFO L256 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-07 00:32:21,680 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 00:32:21,715 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 00:32:21,716 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 00:32:21,871 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-11-07 00:32:21,872 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [1853614520] [2019-11-07 00:32:21,879 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 41 [2019-11-07 00:32:21,935 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-11-07 00:32:21,935 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-11-07 00:32:22,017 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-11-07 00:32:22,019 INFO L272 AbstractInterpreter]: Visited 6 different actions 6 times. Never merged. Never widened. Performed 21 root evaluator evaluations with a maximum evaluation depth of 0. Performed 21 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 34 variables. [2019-11-07 00:32:22,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:32:22,022 INFO L536 sIntCurrentIteration]: Generating AbsInt predicates [2019-11-07 00:32:22,063 INFO L227 lantSequenceWeakener]: Weakened 4 states. On average, predicates are now at 100% of their original sizes. [2019-11-07 00:32:22,063 INFO L551 sIntCurrentIteration]: Unifying AI predicates [2019-11-07 00:32:22,065 INFO L553 sIntCurrentIteration]: We unified 39 AI predicates to 39 [2019-11-07 00:32:22,066 INFO L562 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-11-07 00:32:22,066 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-11-07 00:32:22,067 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [10, 6, 6] total 12 [2019-11-07 00:32:22,087 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516469800] [2019-11-07 00:32:22,088 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-07 00:32:22,088 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:32:22,088 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-07 00:32:22,089 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2019-11-07 00:32:22,089 INFO L87 Difference]: Start difference. First operand 43 states and 52 transitions. Second operand 2 states. [2019-11-07 00:32:22,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:32:22,092 INFO L93 Difference]: Finished difference Result 43 states and 52 transitions. [2019-11-07 00:32:22,092 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-07 00:32:22,092 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 40 [2019-11-07 00:32:22,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:32:22,092 INFO L225 Difference]: With dead ends: 43 [2019-11-07 00:32:22,092 INFO L226 Difference]: Without dead ends: 0 [2019-11-07 00:32:22,093 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 76 SyntacticMatches, 3 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2019-11-07 00:32:22,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-07 00:32:22,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-07 00:32:22,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-07 00:32:22,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-07 00:32:22,094 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 40 [2019-11-07 00:32:22,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:32:22,095 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-07 00:32:22,095 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-07 00:32:22,095 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-07 00:32:22,095 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-07 00:32:22,298 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 00:32:22,305 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-07 00:32:22,352 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-11-07 00:32:22,352 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-11-07 00:32:22,353 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-11-07 00:32:22,353 INFO L446 ceAbstractionStarter]: At program point myexitENTRY(lines 561 563) the Hoare annotation is: true [2019-11-07 00:32:22,353 INFO L443 ceAbstractionStarter]: For program point myexitEXIT(lines 561 563) no Hoare annotation was computed. [2019-11-07 00:32:22,353 INFO L446 ceAbstractionStarter]: At program point L562(line 562) the Hoare annotation is: true [2019-11-07 00:32:22,353 INFO L443 ceAbstractionStarter]: For program point sll_destroyEXIT(lines 582 588) no Hoare annotation was computed. [2019-11-07 00:32:22,353 INFO L446 ceAbstractionStarter]: At program point L583-2(lines 583 587) the Hoare annotation is: true [2019-11-07 00:32:22,353 INFO L443 ceAbstractionStarter]: For program point L583-3(lines 582 588) no Hoare annotation was computed. [2019-11-07 00:32:22,354 INFO L446 ceAbstractionStarter]: At program point sll_destroyENTRY(lines 582 588) the Hoare annotation is: true [2019-11-07 00:32:22,354 INFO L443 ceAbstractionStarter]: For program point __bswap_32ENTRY(lines 64 68) no Hoare annotation was computed. [2019-11-07 00:32:22,354 INFO L443 ceAbstractionStarter]: For program point __bswap_32FINAL(lines 64 68) no Hoare annotation was computed. [2019-11-07 00:32:22,354 INFO L443 ceAbstractionStarter]: For program point __bswap_32EXIT(lines 64 68) no Hoare annotation was computed. [2019-11-07 00:32:22,354 INFO L446 ceAbstractionStarter]: At program point L576(line 576) the Hoare annotation is: true [2019-11-07 00:32:22,354 INFO L443 ceAbstractionStarter]: For program point L576-1(line 576) no Hoare annotation was computed. [2019-11-07 00:32:22,354 INFO L443 ceAbstractionStarter]: For program point sll_createEXIT(lines 573 581) no Hoare annotation was computed. [2019-11-07 00:32:22,355 INFO L443 ceAbstractionStarter]: For program point L575-2(lines 575 579) no Hoare annotation was computed. [2019-11-07 00:32:22,355 INFO L446 ceAbstractionStarter]: At program point L575-3(lines 575 579) the Hoare annotation is: true [2019-11-07 00:32:22,355 INFO L443 ceAbstractionStarter]: For program point L575-4(lines 575 579) no Hoare annotation was computed. [2019-11-07 00:32:22,355 INFO L446 ceAbstractionStarter]: At program point sll_createENTRY(lines 573 581) the Hoare annotation is: true [2019-11-07 00:32:22,355 INFO L443 ceAbstractionStarter]: For program point sll_createFINAL(lines 573 581) no Hoare annotation was computed. [2019-11-07 00:32:22,355 INFO L443 ceAbstractionStarter]: For program point __bswap_64ENTRY(lines 69 73) no Hoare annotation was computed. [2019-11-07 00:32:22,355 INFO L443 ceAbstractionStarter]: For program point __bswap_64FINAL(lines 69 73) no Hoare annotation was computed. [2019-11-07 00:32:22,355 INFO L443 ceAbstractionStarter]: For program point __bswap_64EXIT(lines 69 73) no Hoare annotation was computed. [2019-11-07 00:32:22,356 INFO L443 ceAbstractionStarter]: For program point L598-1(lines 598 602) no Hoare annotation was computed. [2019-11-07 00:32:22,356 INFO L446 ceAbstractionStarter]: At program point sll_insertENTRY(lines 589 604) the Hoare annotation is: true [2019-11-07 00:32:22,356 INFO L446 ceAbstractionStarter]: At program point L593-2(lines 593 597) the Hoare annotation is: true [2019-11-07 00:32:22,357 INFO L446 ceAbstractionStarter]: At program point L590(line 590) the Hoare annotation is: true [2019-11-07 00:32:22,357 INFO L443 ceAbstractionStarter]: For program point L593-3(lines 589 604) no Hoare annotation was computed. [2019-11-07 00:32:22,358 INFO L443 ceAbstractionStarter]: For program point L590-1(line 590) no Hoare annotation was computed. [2019-11-07 00:32:22,359 INFO L443 ceAbstractionStarter]: For program point sll_insertEXIT(lines 589 604) no Hoare annotation was computed. [2019-11-07 00:32:22,359 INFO L443 ceAbstractionStarter]: For program point sll_insertFINAL(lines 589 604) no Hoare annotation was computed. [2019-11-07 00:32:22,359 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-07 00:32:22,359 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-11-07 00:32:22,359 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-11-07 00:32:22,360 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-07 00:32:22,360 INFO L446 ceAbstractionStarter]: At program point L638(line 638) the Hoare annotation is: true [2019-11-07 00:32:22,360 INFO L443 ceAbstractionStarter]: For program point L638-1(line 638) no Hoare annotation was computed. [2019-11-07 00:32:22,360 INFO L439 ceAbstractionStarter]: At program point L636(lines 605 642) the Hoare annotation is: false [2019-11-07 00:32:22,360 INFO L443 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 640) no Hoare annotation was computed. [2019-11-07 00:32:22,360 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 605 642) no Hoare annotation was computed. [2019-11-07 00:32:22,360 INFO L443 ceAbstractionStarter]: For program point L622(lines 622 624) no Hoare annotation was computed. [2019-11-07 00:32:22,361 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 605 642) no Hoare annotation was computed. [2019-11-07 00:32:22,361 INFO L443 ceAbstractionStarter]: For program point L616(lines 616 618) no Hoare annotation was computed. [2019-11-07 00:32:22,361 INFO L439 ceAbstractionStarter]: At program point L614-2(lines 614 621) the Hoare annotation is: false [2019-11-07 00:32:22,361 INFO L443 ceAbstractionStarter]: For program point L614-3(lines 614 621) no Hoare annotation was computed. [2019-11-07 00:32:22,361 INFO L439 ceAbstractionStarter]: At program point L608(line 608) the Hoare annotation is: false [2019-11-07 00:32:22,361 INFO L443 ceAbstractionStarter]: For program point L608-1(line 608) no Hoare annotation was computed. [2019-11-07 00:32:22,361 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 605 642) the Hoare annotation is: true [2019-11-07 00:32:22,362 INFO L443 ceAbstractionStarter]: For program point L629(lines 629 631) no Hoare annotation was computed. [2019-11-07 00:32:22,362 INFO L439 ceAbstractionStarter]: At program point L627-2(lines 627 634) the Hoare annotation is: false [2019-11-07 00:32:22,362 INFO L443 ceAbstractionStarter]: For program point L627-3(lines 605 642) no Hoare annotation was computed. [2019-11-07 00:32:22,362 INFO L439 ceAbstractionStarter]: At program point L611(line 611) the Hoare annotation is: false [2019-11-07 00:32:22,362 INFO L443 ceAbstractionStarter]: For program point L611-1(line 611) no Hoare annotation was computed. [2019-11-07 00:32:22,362 INFO L446 ceAbstractionStarter]: At program point node_createENTRY(lines 564 572) the Hoare annotation is: true [2019-11-07 00:32:22,363 INFO L443 ceAbstractionStarter]: For program point node_createFINAL(lines 564 572) no Hoare annotation was computed. [2019-11-07 00:32:22,363 INFO L446 ceAbstractionStarter]: At program point L567(line 567) the Hoare annotation is: true [2019-11-07 00:32:22,363 INFO L443 ceAbstractionStarter]: For program point L566(lines 566 568) no Hoare annotation was computed. [2019-11-07 00:32:22,363 INFO L443 ceAbstractionStarter]: For program point node_createEXIT(lines 564 572) no Hoare annotation was computed. [2019-11-07 00:32:22,364 INFO L443 ceAbstractionStarter]: For program point L566-1(lines 566 568) no Hoare annotation was computed. [2019-11-07 00:32:22,376 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 12:32:22 BoogieIcfgContainer [2019-11-07 00:32:22,376 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-07 00:32:22,379 INFO L168 Benchmark]: Toolchain (without parser) took 3584.85 ms. Allocated memory was 138.9 MB in the beginning and 248.5 MB in the end (delta: 109.6 MB). Free memory was 100.9 MB in the beginning and 200.4 MB in the end (delta: -99.5 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. [2019-11-07 00:32:22,380 INFO L168 Benchmark]: CDTParser took 1.15 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: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2019-11-07 00:32:22,381 INFO L168 Benchmark]: CACSL2BoogieTranslator took 587.53 ms. Allocated memory was 138.9 MB in the beginning and 203.4 MB in the end (delta: 64.5 MB). Free memory was 100.5 MB in the beginning and 166.3 MB in the end (delta: -65.8 MB). Peak memory consumption was 23.3 MB. Max. memory is 7.1 GB. [2019-11-07 00:32:22,382 INFO L168 Benchmark]: Boogie Preprocessor took 74.96 ms. Allocated memory is still 203.4 MB. Free memory was 166.3 MB in the beginning and 163.7 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2019-11-07 00:32:22,383 INFO L168 Benchmark]: RCFGBuilder took 685.99 ms. Allocated memory is still 203.4 MB. Free memory was 163.7 MB in the beginning and 112.9 MB in the end (delta: 50.8 MB). Peak memory consumption was 50.8 MB. Max. memory is 7.1 GB. [2019-11-07 00:32:22,384 INFO L168 Benchmark]: TraceAbstraction took 2229.75 ms. Allocated memory was 203.4 MB in the beginning and 248.5 MB in the end (delta: 45.1 MB). Free memory was 112.9 MB in the beginning and 200.4 MB in the end (delta: -87.5 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-11-07 00:32:22,388 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.15 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: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 587.53 ms. Allocated memory was 138.9 MB in the beginning and 203.4 MB in the end (delta: 64.5 MB). Free memory was 100.5 MB in the beginning and 166.3 MB in the end (delta: -65.8 MB). Peak memory consumption was 23.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 74.96 ms. Allocated memory is still 203.4 MB. Free memory was 166.3 MB in the beginning and 163.7 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 685.99 ms. Allocated memory is still 203.4 MB. Free memory was 163.7 MB in the beginning and 112.9 MB in the end (delta: 50.8 MB). Peak memory consumption was 50.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2229.75 ms. Allocated memory was 203.4 MB in the beginning and 248.5 MB in the end (delta: 45.1 MB). Free memory was 112.9 MB in the beginning and 200.4 MB in the end (delta: -87.5 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 640]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 562]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 575]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 593]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 614]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 583]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 605]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 627]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 60 locations, 1 error locations. Result: SAFE, OverallTime: 2.1s, OverallIterations: 4, TraceHistogramMax: 2, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 156 SDtfs, 27 SDslu, 275 SDs, 0 SdLazy, 69 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 105 GetRequests, 82 SyntacticMatches, 3 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=53occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 9 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 22 LocationsWithAnnotation, 38 PreInvPairs, 39 NumberOfFragments, 22 HoareAnnotationTreeSize, 38 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 22 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 173 NumberOfCodeBlocks, 173 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 207 ConstructedInterpolants, 0 QuantifiedInterpolants, 12207 SizeOfPredicates, 2 NumberOfNonLiveVariables, 244 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 6 InterpolantComputations, 3 PerfectInterpolantSequences, 15/18 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: TIME[ms]: 144, ITERATIONS: 1, WAS_STRONG: 1, WEAKENING_RATIO: 0.9743589743589743, AVG_VARS_REMOVED_DURING_WEAKENING: 1.7179487179487178, AVG_WEAKENED_CONJUNCTS: 0.15384615384615385, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...