/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/dll2n_insert_unequal.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 00:31:36,464 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 00:31:36,467 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 00:31:36,485 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 00:31:36,485 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 00:31:36,487 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 00:31:36,489 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 00:31:36,499 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 00:31:36,502 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 00:31:36,506 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 00:31:36,507 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 00:31:36,509 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 00:31:36,509 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 00:31:36,511 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 00:31:36,513 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 00:31:36,515 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 00:31:36,516 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 00:31:36,517 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 00:31:36,518 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 00:31:36,524 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 00:31:36,529 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 00:31:36,532 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 00:31:36,535 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 00:31:36,536 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 00:31:36,539 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-07 00:31:36,539 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-07 00:31:36,539 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-07 00:31:36,541 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-07 00:31:36,541 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-07 00:31:36,543 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-07 00:31:36,543 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-07 00:31:36,545 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-07 00:31:36,546 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-07 00:31:36,547 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-07 00:31:36,549 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-07 00:31:36,549 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-07 00:31:36,550 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-07 00:31:36,551 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-07 00:31:36,551 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 00:31:36,552 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 00:31:36,553 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 00:31:36,553 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 00:31:36,567 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 00:31:36,567 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 00:31:36,569 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 00:31:36,569 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 00:31:36,569 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 00:31:36,569 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 00:31:36,569 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 00:31:36,570 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 00:31:36,570 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 00:31:36,570 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 00:31:36,570 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 00:31:36,570 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 00:31:36,571 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 00:31:36,574 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 00:31:36,574 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 00:31:36,574 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 00:31:36,575 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 00:31:36,575 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 00:31:36,575 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 00:31:36,575 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 00:31:36,575 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 00:31:36,576 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 00:31:36,576 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 00:31:36,576 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 00:31:36,576 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 00:31:36,576 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 00:31:36,577 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 00:31:36,578 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 00:31:36,578 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 00:31:36,902 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 00:31:36,916 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 00:31:36,920 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 00:31:36,922 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 00:31:36,922 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 00:31:36,923 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-simple/dll2n_insert_unequal.i [2019-11-07 00:31:36,984 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/abf04c06d/08189c237fdd4d71ada872791640170d/FLAG8cb99fe50 [2019-11-07 00:31:37,526 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 00:31:37,527 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/list-simple/dll2n_insert_unequal.i [2019-11-07 00:31:37,551 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/abf04c06d/08189c237fdd4d71ada872791640170d/FLAG8cb99fe50 [2019-11-07 00:31:37,807 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/abf04c06d/08189c237fdd4d71ada872791640170d [2019-11-07 00:31:37,816 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 00:31:37,817 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 00:31:37,818 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 00:31:37,818 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 00:31:37,822 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 00:31:37,823 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:31:37" (1/1) ... [2019-11-07 00:31:37,825 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d54ca2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:31:37, skipping insertion in model container [2019-11-07 00:31:37,826 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:31:37" (1/1) ... [2019-11-07 00:31:37,833 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 00:31:37,893 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 00:31:38,318 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 00:31:38,329 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 00:31:38,400 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 00:31:38,455 INFO L192 MainTranslator]: Completed translation [2019-11-07 00:31:38,455 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:31:38 WrapperNode [2019-11-07 00:31:38,455 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 00:31:38,456 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 00:31:38,456 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 00:31:38,456 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 00:31:38,470 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:31:38" (1/1) ... [2019-11-07 00:31:38,471 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:31:38" (1/1) ... [2019-11-07 00:31:38,491 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:31:38" (1/1) ... [2019-11-07 00:31:38,491 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:31:38" (1/1) ... [2019-11-07 00:31:38,513 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:31:38" (1/1) ... [2019-11-07 00:31:38,520 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:31:38" (1/1) ... [2019-11-07 00:31:38,524 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:31:38" (1/1) ... [2019-11-07 00:31:38,532 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 00:31:38,532 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 00:31:38,533 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 00:31:38,533 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 00:31:38,534 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:31:38" (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 00:31:38,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 00:31:38,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 00:31:38,593 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-07 00:31:38,593 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-07 00:31:38,593 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2019-11-07 00:31:38,594 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2019-11-07 00:31:38,594 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create [2019-11-07 00:31:38,594 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_destroy [2019-11-07 00:31:38,594 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_insert [2019-11-07 00:31:38,594 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 00:31:38,595 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 00:31:38,595 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-07 00:31:38,595 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-07 00:31:38,595 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-07 00:31:38,595 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-07 00:31:38,595 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-07 00:31:38,596 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-07 00:31:38,596 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-07 00:31:38,596 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-07 00:31:38,596 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-07 00:31:38,596 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-07 00:31:38,597 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-07 00:31:38,597 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-07 00:31:38,597 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-07 00:31:38,597 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-07 00:31:38,597 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-07 00:31:38,597 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-07 00:31:38,598 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-07 00:31:38,598 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-07 00:31:38,598 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-07 00:31:38,598 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-07 00:31:38,598 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-07 00:31:38,598 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-07 00:31:38,598 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-07 00:31:38,599 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-07 00:31:38,599 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-07 00:31:38,599 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-07 00:31:38,599 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-07 00:31:38,599 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-07 00:31:38,600 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-07 00:31:38,600 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-07 00:31:38,600 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-07 00:31:38,600 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-07 00:31:38,600 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-07 00:31:38,600 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-07 00:31:38,600 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-07 00:31:38,601 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-07 00:31:38,601 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-07 00:31:38,601 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-07 00:31:38,601 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-07 00:31:38,601 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-07 00:31:38,601 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-07 00:31:38,601 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-07 00:31:38,602 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-07 00:31:38,602 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-07 00:31:38,602 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-07 00:31:38,602 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-07 00:31:38,602 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-07 00:31:38,602 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-07 00:31:38,602 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-07 00:31:38,603 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-07 00:31:38,603 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-07 00:31:38,603 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-07 00:31:38,603 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-07 00:31:38,603 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-07 00:31:38,603 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-07 00:31:38,604 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-07 00:31:38,604 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-11-07 00:31:38,604 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-07 00:31:38,604 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-07 00:31:38,604 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-07 00:31:38,604 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-07 00:31:38,604 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-07 00:31:38,605 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-07 00:31:38,605 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-07 00:31:38,605 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-07 00:31:38,605 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-07 00:31:38,605 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-07 00:31:38,606 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-07 00:31:38,606 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-07 00:31:38,606 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-07 00:31:38,606 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-07 00:31:38,606 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-07 00:31:38,606 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-07 00:31:38,606 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-07 00:31:38,607 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-07 00:31:38,607 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-07 00:31:38,607 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-07 00:31:38,607 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-07 00:31:38,607 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-07 00:31:38,607 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-07 00:31:38,608 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-07 00:31:38,608 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-07 00:31:38,608 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-07 00:31:38,608 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-07 00:31:38,608 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-07 00:31:38,608 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-07 00:31:38,608 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-07 00:31:38,609 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-07 00:31:38,609 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-07 00:31:38,609 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-07 00:31:38,609 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-07 00:31:38,609 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-07 00:31:38,609 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-07 00:31:38,609 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-07 00:31:38,610 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-07 00:31:38,610 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-07 00:31:38,610 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-07 00:31:38,610 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-07 00:31:38,610 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-07 00:31:38,610 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-07 00:31:38,610 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-07 00:31:38,611 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-07 00:31:38,611 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-07 00:31:38,611 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-07 00:31:38,611 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-07 00:31:38,611 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2019-11-07 00:31:38,611 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2019-11-07 00:31:38,611 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-07 00:31:38,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-07 00:31:38,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-07 00:31:38,612 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create [2019-11-07 00:31:38,612 INFO L130 BoogieDeclarations]: Found specification of procedure dll_destroy [2019-11-07 00:31:38,612 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-07 00:31:38,612 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-07 00:31:38,612 INFO L130 BoogieDeclarations]: Found specification of procedure dll_insert [2019-11-07 00:31:38,613 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 00:31:38,613 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-07 00:31:38,613 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-07 00:31:38,613 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-07 00:31:38,613 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 00:31:38,613 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 00:31:39,080 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2019-11-07 00:31:39,281 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 00:31:39,282 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-07 00:31:39,283 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:31:39 BoogieIcfgContainer [2019-11-07 00:31:39,283 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 00:31:39,284 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 00:31:39,285 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 00:31:39,289 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 00:31:39,289 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:31:37" (1/3) ... [2019-11-07 00:31:39,290 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@466e955f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:31:39, skipping insertion in model container [2019-11-07 00:31:39,290 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:31:38" (2/3) ... [2019-11-07 00:31:39,291 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@466e955f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:31:39, skipping insertion in model container [2019-11-07 00:31:39,298 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:31:39" (3/3) ... [2019-11-07 00:31:39,300 INFO L109 eAbstractionObserver]: Analyzing ICFG dll2n_insert_unequal.i [2019-11-07 00:31:39,312 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 00:31:39,320 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 00:31:39,329 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 00:31:39,353 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 00:31:39,353 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 00:31:39,353 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 00:31:39,354 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 00:31:39,354 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 00:31:39,354 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 00:31:39,354 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 00:31:39,355 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 00:31:39,374 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states. [2019-11-07 00:31:39,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-11-07 00:31:39,381 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:31:39,382 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 00:31:39,384 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:31:39,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:31:39,390 INFO L82 PathProgramCache]: Analyzing trace with hash 405466376, now seen corresponding path program 1 times [2019-11-07 00:31:39,400 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:31:39,401 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766782797] [2019-11-07 00:31:39,401 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:31:39,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:31:39,663 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 00:31:39,665 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766782797] [2019-11-07 00:31:39,666 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:31:39,666 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-07 00:31:39,668 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430193973] [2019-11-07 00:31:39,674 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-07 00:31:39,676 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:31:39,688 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-07 00:31:39,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-07 00:31:39,691 INFO L87 Difference]: Start difference. First operand 57 states. Second operand 2 states. [2019-11-07 00:31:39,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:31:39,753 INFO L93 Difference]: Finished difference Result 100 states and 136 transitions. [2019-11-07 00:31:39,753 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-07 00:31:39,755 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 31 [2019-11-07 00:31:39,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:31:39,774 INFO L225 Difference]: With dead ends: 100 [2019-11-07 00:31:39,774 INFO L226 Difference]: Without dead ends: 43 [2019-11-07 00:31:39,781 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 00:31:39,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2019-11-07 00:31:39,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2019-11-07 00:31:39,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2019-11-07 00:31:39,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 53 transitions. [2019-11-07 00:31:39,819 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 53 transitions. Word has length 31 [2019-11-07 00:31:39,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:31:39,819 INFO L462 AbstractCegarLoop]: Abstraction has 43 states and 53 transitions. [2019-11-07 00:31:39,819 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-07 00:31:39,820 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 53 transitions. [2019-11-07 00:31:39,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-11-07 00:31:39,824 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:31:39,824 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 00:31:39,824 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:31:39,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:31:39,825 INFO L82 PathProgramCache]: Analyzing trace with hash -954650364, now seen corresponding path program 1 times [2019-11-07 00:31:39,825 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:31:39,826 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591098843] [2019-11-07 00:31:39,826 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:31:39,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:31:39,950 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 00:31:39,950 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591098843] [2019-11-07 00:31:39,951 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:31:39,951 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 00:31:39,951 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412846466] [2019-11-07 00:31:39,953 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 00:31:39,953 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:31:39,953 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 00:31:39,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:31:39,954 INFO L87 Difference]: Start difference. First operand 43 states and 53 transitions. Second operand 3 states. [2019-11-07 00:31:39,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:31:39,981 INFO L93 Difference]: Finished difference Result 60 states and 77 transitions. [2019-11-07 00:31:39,982 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 00:31:39,982 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 31 [2019-11-07 00:31:39,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:31:39,985 INFO L225 Difference]: With dead ends: 60 [2019-11-07 00:31:39,985 INFO L226 Difference]: Without dead ends: 47 [2019-11-07 00:31:39,986 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 00:31:39,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2019-11-07 00:31:39,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 45. [2019-11-07 00:31:39,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2019-11-07 00:31:39,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 56 transitions. [2019-11-07 00:31:39,995 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 56 transitions. Word has length 31 [2019-11-07 00:31:39,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:31:39,996 INFO L462 AbstractCegarLoop]: Abstraction has 45 states and 56 transitions. [2019-11-07 00:31:39,996 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 00:31:39,996 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 56 transitions. [2019-11-07 00:31:39,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-11-07 00:31:39,997 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:31:39,997 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, 1] [2019-11-07 00:31:39,998 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:31:39,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:31:39,998 INFO L82 PathProgramCache]: Analyzing trace with hash -1456779385, now seen corresponding path program 1 times [2019-11-07 00:31:39,998 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:31:39,998 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440204712] [2019-11-07 00:31:39,999 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:31:40,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:31:40,165 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 00:31:40,165 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440204712] [2019-11-07 00:31:40,166 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:31:40,166 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-11-07 00:31:40,166 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853372581] [2019-11-07 00:31:40,167 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-07 00:31:40,167 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:31:40,167 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-07 00:31:40,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2019-11-07 00:31:40,168 INFO L87 Difference]: Start difference. First operand 45 states and 56 transitions. Second operand 9 states. [2019-11-07 00:31:40,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:31:40,316 INFO L93 Difference]: Finished difference Result 86 states and 109 transitions. [2019-11-07 00:31:40,316 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-07 00:31:40,316 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 32 [2019-11-07 00:31:40,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:31:40,318 INFO L225 Difference]: With dead ends: 86 [2019-11-07 00:31:40,318 INFO L226 Difference]: Without dead ends: 54 [2019-11-07 00:31:40,319 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2019-11-07 00:31:40,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2019-11-07 00:31:40,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 46. [2019-11-07 00:31:40,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2019-11-07 00:31:40,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 57 transitions. [2019-11-07 00:31:40,332 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 57 transitions. Word has length 32 [2019-11-07 00:31:40,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:31:40,332 INFO L462 AbstractCegarLoop]: Abstraction has 46 states and 57 transitions. [2019-11-07 00:31:40,332 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-07 00:31:40,335 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 57 transitions. [2019-11-07 00:31:40,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2019-11-07 00:31:40,336 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:31:40,336 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, 1, 1, 1, 1, 1, 1] [2019-11-07 00:31:40,336 INFO L410 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:31:40,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:31:40,337 INFO L82 PathProgramCache]: Analyzing trace with hash 1565838603, now seen corresponding path program 1 times [2019-11-07 00:31:40,337 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:31:40,337 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918004979] [2019-11-07 00:31:40,337 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:31:40,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:31:40,407 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 00:31:40,407 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918004979] [2019-11-07 00:31:40,407 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:31:40,408 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 00:31:40,409 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608523807] [2019-11-07 00:31:40,409 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 00:31:40,409 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:31:40,410 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 00:31:40,410 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:31:40,410 INFO L87 Difference]: Start difference. First operand 46 states and 57 transitions. Second operand 3 states. [2019-11-07 00:31:40,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:31:40,453 INFO L93 Difference]: Finished difference Result 87 states and 110 transitions. [2019-11-07 00:31:40,453 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 00:31:40,453 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 37 [2019-11-07 00:31:40,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:31:40,454 INFO L225 Difference]: With dead ends: 87 [2019-11-07 00:31:40,454 INFO L226 Difference]: Without dead ends: 50 [2019-11-07 00:31:40,455 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 00:31:40,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2019-11-07 00:31:40,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 49. [2019-11-07 00:31:40,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2019-11-07 00:31:40,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 60 transitions. [2019-11-07 00:31:40,468 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 60 transitions. Word has length 37 [2019-11-07 00:31:40,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:31:40,468 INFO L462 AbstractCegarLoop]: Abstraction has 49 states and 60 transitions. [2019-11-07 00:31:40,469 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 00:31:40,469 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 60 transitions. [2019-11-07 00:31:40,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2019-11-07 00:31:40,470 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:31:40,470 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, 1, 1, 1, 1, 1, 1] [2019-11-07 00:31:40,470 INFO L410 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:31:40,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:31:40,471 INFO L82 PathProgramCache]: Analyzing trace with hash 1627878217, now seen corresponding path program 1 times [2019-11-07 00:31:40,471 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:31:40,471 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339538832] [2019-11-07 00:31:40,471 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:31:40,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:31:40,636 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 00:31:40,636 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339538832] [2019-11-07 00:31:40,637 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1038314525] [2019-11-07 00:31:40,637 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 00:31:40,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:31:40,836 INFO L256 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-07 00:31:40,846 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 00:31:40,892 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 00:31:40,892 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 00:31:41,055 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 00:31:41,055 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [1306473341] [2019-11-07 00:31:41,071 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 38 [2019-11-07 00:31:41,137 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-11-07 00:31:41,138 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-11-07 00:31:41,202 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-11-07 00:31:41,204 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 00:31:41,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:31:41,208 INFO L536 sIntCurrentIteration]: Generating AbsInt predicates [2019-11-07 00:31:41,244 INFO L227 lantSequenceWeakener]: Weakened 4 states. On average, predicates are now at 100% of their original sizes. [2019-11-07 00:31:41,245 INFO L551 sIntCurrentIteration]: Unifying AI predicates [2019-11-07 00:31:41,246 INFO L553 sIntCurrentIteration]: We unified 36 AI predicates to 36 [2019-11-07 00:31:41,247 INFO L562 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-11-07 00:31:41,247 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-11-07 00:31:41,249 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [10, 6, 6] total 12 [2019-11-07 00:31:41,250 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434856118] [2019-11-07 00:31:41,250 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-07 00:31:41,250 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:31:41,251 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-07 00:31:41,251 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2019-11-07 00:31:41,252 INFO L87 Difference]: Start difference. First operand 49 states and 60 transitions. Second operand 2 states. [2019-11-07 00:31:41,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:31:41,255 INFO L93 Difference]: Finished difference Result 49 states and 60 transitions. [2019-11-07 00:31:41,255 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-07 00:31:41,255 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 37 [2019-11-07 00:31:41,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:31:41,256 INFO L225 Difference]: With dead ends: 49 [2019-11-07 00:31:41,256 INFO L226 Difference]: Without dead ends: 0 [2019-11-07 00:31:41,257 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 70 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 00:31:41,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-07 00:31:41,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-07 00:31:41,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-07 00:31:41,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-07 00:31:41,257 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 37 [2019-11-07 00:31:41,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:31:41,258 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-07 00:31:41,258 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-07 00:31:41,258 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-07 00:31:41,258 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-07 00:31:41,463 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 00:31:41,469 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-07 00:31:41,505 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-11-07 00:31:41,506 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-11-07 00:31:41,506 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-11-07 00:31:41,506 INFO L446 ceAbstractionStarter]: At program point myexitENTRY(lines 561 563) the Hoare annotation is: true [2019-11-07 00:31:41,506 INFO L443 ceAbstractionStarter]: For program point myexitEXIT(lines 561 563) no Hoare annotation was computed. [2019-11-07 00:31:41,506 INFO L446 ceAbstractionStarter]: At program point L562(line 562) the Hoare annotation is: true [2019-11-07 00:31:41,506 INFO L443 ceAbstractionStarter]: For program point L578-1(lines 578 580) no Hoare annotation was computed. [2019-11-07 00:31:41,507 INFO L446 ceAbstractionStarter]: At program point dll_createENTRY(lines 574 591) the Hoare annotation is: true [2019-11-07 00:31:41,507 INFO L446 ceAbstractionStarter]: At program point L576-2(lines 576 589) the Hoare annotation is: true [2019-11-07 00:31:41,507 INFO L443 ceAbstractionStarter]: For program point L576-3(lines 576 589) no Hoare annotation was computed. [2019-11-07 00:31:41,507 INFO L443 ceAbstractionStarter]: For program point dll_createFINAL(lines 574 591) no Hoare annotation was computed. [2019-11-07 00:31:41,507 INFO L446 ceAbstractionStarter]: At program point L579(line 579) the Hoare annotation is: true [2019-11-07 00:31:41,507 INFO L443 ceAbstractionStarter]: For program point dll_createEXIT(lines 574 591) no Hoare annotation was computed. [2019-11-07 00:31:41,507 INFO L443 ceAbstractionStarter]: For program point L584(lines 584 586) no Hoare annotation was computed. [2019-11-07 00:31:41,507 INFO L443 ceAbstractionStarter]: For program point L584-2(lines 584 586) no Hoare annotation was computed. [2019-11-07 00:31:41,508 INFO L443 ceAbstractionStarter]: For program point L578(lines 578 580) no Hoare annotation was computed. [2019-11-07 00:31:41,508 INFO L443 ceAbstractionStarter]: For program point __bswap_32ENTRY(lines 63 67) no Hoare annotation was computed. [2019-11-07 00:31:41,508 INFO L443 ceAbstractionStarter]: For program point __bswap_32FINAL(lines 63 67) no Hoare annotation was computed. [2019-11-07 00:31:41,508 INFO L443 ceAbstractionStarter]: For program point __bswap_32EXIT(lines 63 67) no Hoare annotation was computed. [2019-11-07 00:31:41,508 INFO L443 ceAbstractionStarter]: For program point __bswap_64ENTRY(lines 68 72) no Hoare annotation was computed. [2019-11-07 00:31:41,508 INFO L443 ceAbstractionStarter]: For program point __bswap_64FINAL(lines 68 72) no Hoare annotation was computed. [2019-11-07 00:31:41,508 INFO L443 ceAbstractionStarter]: For program point __bswap_64EXIT(lines 68 72) no Hoare annotation was computed. [2019-11-07 00:31:41,508 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-07 00:31:41,509 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-11-07 00:31:41,509 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-11-07 00:31:41,509 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-07 00:31:41,509 INFO L446 ceAbstractionStarter]: At program point dll_insertENTRY(lines 599 622) the Hoare annotation is: true [2019-11-07 00:31:41,509 INFO L446 ceAbstractionStarter]: At program point L603-2(lines 603 607) the Hoare annotation is: true [2019-11-07 00:31:41,509 INFO L443 ceAbstractionStarter]: For program point L603-3(lines 599 622) no Hoare annotation was computed. [2019-11-07 00:31:41,510 INFO L443 ceAbstractionStarter]: For program point L612(lines 612 614) no Hoare annotation was computed. [2019-11-07 00:31:41,510 INFO L443 ceAbstractionStarter]: For program point L608(lines 599 622) no Hoare annotation was computed. [2019-11-07 00:31:41,510 INFO L443 ceAbstractionStarter]: For program point dll_insertEXIT(lines 599 622) no Hoare annotation was computed. [2019-11-07 00:31:41,510 INFO L446 ceAbstractionStarter]: At program point L600(line 600) the Hoare annotation is: true [2019-11-07 00:31:41,510 INFO L443 ceAbstractionStarter]: For program point L600-1(line 600) no Hoare annotation was computed. [2019-11-07 00:31:41,510 INFO L443 ceAbstractionStarter]: For program point L617(lines 617 619) no Hoare annotation was computed. [2019-11-07 00:31:41,510 INFO L443 ceAbstractionStarter]: For program point L617-2(lines 617 619) no Hoare annotation was computed. [2019-11-07 00:31:41,511 INFO L443 ceAbstractionStarter]: For program point L640(lines 640 642) no Hoare annotation was computed. [2019-11-07 00:31:41,511 INFO L443 ceAbstractionStarter]: For program point L634(lines 634 636) no Hoare annotation was computed. [2019-11-07 00:31:41,511 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 623 660) no Hoare annotation was computed. [2019-11-07 00:31:41,511 INFO L439 ceAbstractionStarter]: At program point L632-2(lines 632 639) the Hoare annotation is: false [2019-11-07 00:31:41,511 INFO L443 ceAbstractionStarter]: For program point L632-3(lines 632 639) no Hoare annotation was computed. [2019-11-07 00:31:41,511 INFO L439 ceAbstractionStarter]: At program point L626(line 626) the Hoare annotation is: false [2019-11-07 00:31:41,511 INFO L443 ceAbstractionStarter]: For program point L626-1(line 626) no Hoare annotation was computed. [2019-11-07 00:31:41,512 INFO L443 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 658) no Hoare annotation was computed. [2019-11-07 00:31:41,512 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 623 660) no Hoare annotation was computed. [2019-11-07 00:31:41,512 INFO L443 ceAbstractionStarter]: For program point L647(lines 647 649) no Hoare annotation was computed. [2019-11-07 00:31:41,512 INFO L439 ceAbstractionStarter]: At program point L645-2(lines 645 652) the Hoare annotation is: false [2019-11-07 00:31:41,512 INFO L443 ceAbstractionStarter]: For program point L645-3(lines 623 660) no Hoare annotation was computed. [2019-11-07 00:31:41,512 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 623 660) the Hoare annotation is: true [2019-11-07 00:31:41,512 INFO L439 ceAbstractionStarter]: At program point L629(line 629) the Hoare annotation is: false [2019-11-07 00:31:41,513 INFO L443 ceAbstractionStarter]: For program point L629-1(line 629) no Hoare annotation was computed. [2019-11-07 00:31:41,513 INFO L446 ceAbstractionStarter]: At program point L656(line 656) the Hoare annotation is: true [2019-11-07 00:31:41,513 INFO L443 ceAbstractionStarter]: For program point L656-1(line 656) no Hoare annotation was computed. [2019-11-07 00:31:41,513 INFO L439 ceAbstractionStarter]: At program point L654(lines 623 660) the Hoare annotation is: false [2019-11-07 00:31:41,513 INFO L443 ceAbstractionStarter]: For program point dll_destroyEXIT(lines 592 598) no Hoare annotation was computed. [2019-11-07 00:31:41,513 INFO L446 ceAbstractionStarter]: At program point dll_destroyENTRY(lines 592 598) the Hoare annotation is: true [2019-11-07 00:31:41,513 INFO L446 ceAbstractionStarter]: At program point L593-2(lines 593 597) the Hoare annotation is: true [2019-11-07 00:31:41,514 INFO L443 ceAbstractionStarter]: For program point L593-3(lines 592 598) no Hoare annotation was computed. [2019-11-07 00:31:41,514 INFO L446 ceAbstractionStarter]: At program point node_createENTRY(lines 564 573) the Hoare annotation is: true [2019-11-07 00:31:41,514 INFO L443 ceAbstractionStarter]: For program point node_createFINAL(lines 564 573) no Hoare annotation was computed. [2019-11-07 00:31:41,514 INFO L446 ceAbstractionStarter]: At program point L567(line 567) the Hoare annotation is: true [2019-11-07 00:31:41,514 INFO L443 ceAbstractionStarter]: For program point L566(lines 566 568) no Hoare annotation was computed. [2019-11-07 00:31:41,514 INFO L443 ceAbstractionStarter]: For program point node_createEXIT(lines 564 573) no Hoare annotation was computed. [2019-11-07 00:31:41,514 INFO L443 ceAbstractionStarter]: For program point L566-1(lines 566 568) no Hoare annotation was computed. [2019-11-07 00:31:41,523 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 12:31:41 BoogieIcfgContainer [2019-11-07 00:31:41,524 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-07 00:31:41,526 INFO L168 Benchmark]: Toolchain (without parser) took 3708.35 ms. Allocated memory was 138.4 MB in the beginning and 250.1 MB in the end (delta: 111.7 MB). Free memory was 101.7 MB in the beginning and 192.3 MB in the end (delta: -90.6 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2019-11-07 00:31:41,527 INFO L168 Benchmark]: CDTParser took 1.06 ms. Allocated memory is still 138.4 MB. Free memory was 121.6 MB in the beginning and 121.4 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-11-07 00:31:41,529 INFO L168 Benchmark]: CACSL2BoogieTranslator took 637.74 ms. Allocated memory was 138.4 MB in the beginning and 202.9 MB in the end (delta: 64.5 MB). Free memory was 101.5 MB in the beginning and 166.8 MB in the end (delta: -65.2 MB). Peak memory consumption was 25.0 MB. Max. memory is 7.1 GB. [2019-11-07 00:31:41,530 INFO L168 Benchmark]: Boogie Preprocessor took 76.00 ms. Allocated memory is still 202.9 MB. Free memory was 166.8 MB in the beginning and 163.4 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 7.1 GB. [2019-11-07 00:31:41,532 INFO L168 Benchmark]: RCFGBuilder took 750.99 ms. Allocated memory is still 202.9 MB. Free memory was 163.4 MB in the beginning and 109.8 MB in the end (delta: 53.6 MB). Peak memory consumption was 53.6 MB. Max. memory is 7.1 GB. [2019-11-07 00:31:41,533 INFO L168 Benchmark]: TraceAbstraction took 2239.31 ms. Allocated memory was 202.9 MB in the beginning and 250.1 MB in the end (delta: 47.2 MB). Free memory was 109.1 MB in the beginning and 192.3 MB in the end (delta: -83.2 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-11-07 00:31:41,541 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.06 ms. Allocated memory is still 138.4 MB. Free memory was 121.6 MB in the beginning and 121.4 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 637.74 ms. Allocated memory was 138.4 MB in the beginning and 202.9 MB in the end (delta: 64.5 MB). Free memory was 101.5 MB in the beginning and 166.8 MB in the end (delta: -65.2 MB). Peak memory consumption was 25.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 76.00 ms. Allocated memory is still 202.9 MB. Free memory was 166.8 MB in the beginning and 163.4 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 750.99 ms. Allocated memory is still 202.9 MB. Free memory was 163.4 MB in the beginning and 109.8 MB in the end (delta: 53.6 MB). Peak memory consumption was 53.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2239.31 ms. Allocated memory was 202.9 MB in the beginning and 250.1 MB in the end (delta: 47.2 MB). Free memory was 109.1 MB in the beginning and 192.3 MB in the end (delta: -83.2 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 658]: 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: 593]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 623]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 603]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 645]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 632]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 576]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 64 locations, 1 error locations. Result: SAFE, OverallTime: 2.1s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 223 SDtfs, 36 SDslu, 350 SDs, 0 SdLazy, 74 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 102 GetRequests, 78 SyntacticMatches, 3 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=57occurred 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, 5 MinimizatonAttempts, 11 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 22 LocationsWithAnnotation, 43 PreInvPairs, 44 NumberOfFragments, 22 HoareAnnotationTreeSize, 43 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, 205 NumberOfCodeBlocks, 205 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 235 ConstructedInterpolants, 0 QuantifiedInterpolants, 13987 SizeOfPredicates, 2 NumberOfNonLiveVariables, 229 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 7 InterpolantComputations, 4 PerfectInterpolantSequences, 1/4 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: TIME[ms]: 137, ITERATIONS: 1, WAS_STRONG: 1, WEAKENING_RATIO: 0.9722222222222222, AVG_VARS_REMOVED_DURING_WEAKENING: 1.8055555555555556, AVG_WEAKENED_CONJUNCTS: 0.16666666666666666, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...