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/sll2c_update_all_reverse.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 21:04:54,043 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 21:04:54,048 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 21:04:54,062 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 21:04:54,062 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 21:04:54,063 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 21:04:54,065 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 21:04:54,067 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 21:04:54,069 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 21:04:54,070 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 21:04:54,071 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 21:04:54,072 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 21:04:54,072 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 21:04:54,073 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 21:04:54,074 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 21:04:54,075 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 21:04:54,076 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 21:04:54,077 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 21:04:54,078 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 21:04:54,080 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 21:04:54,082 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 21:04:54,083 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 21:04:54,084 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 21:04:54,085 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 21:04:54,087 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 21:04:54,087 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 21:04:54,087 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 21:04:54,088 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 21:04:54,088 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 21:04:54,089 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 21:04:54,090 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 21:04:54,090 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 21:04:54,091 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 21:04:54,092 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 21:04:54,093 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 21:04:54,093 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 21:04:54,094 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 21:04:54,094 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 21:04:54,094 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 21:04:54,095 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 21:04:54,096 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 21:04:54,100 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-13 21:04:54,119 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 21:04:54,120 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 21:04:54,122 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 21:04:54,122 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 21:04:54,122 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 21:04:54,123 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 21:04:54,123 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 21:04:54,123 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 21:04:54,123 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 21:04:54,123 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 21:04:54,124 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 21:04:54,125 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 21:04:54,125 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 21:04:54,125 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 21:04:54,126 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 21:04:54,126 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 21:04:54,126 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 21:04:54,126 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 21:04:54,126 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 21:04:54,127 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 21:04:54,127 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 21:04:54,127 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 21:04:54,127 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 21:04:54,128 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 21:04:54,128 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 21:04:54,128 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 21:04:54,128 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 21:04:54,129 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 21:04:54,129 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-13 21:04:54,422 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 21:04:54,435 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 21:04:54,439 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 21:04:54,440 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 21:04:54,441 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 21:04:54,441 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-simple/sll2c_update_all_reverse.i [2019-10-13 21:04:54,507 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0284283ee/568a885176294d36b125b9ea0a24c365/FLAG2a64586e2 [2019-10-13 21:04:55,094 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 21:04:55,096 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/list-simple/sll2c_update_all_reverse.i [2019-10-13 21:04:55,111 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0284283ee/568a885176294d36b125b9ea0a24c365/FLAG2a64586e2 [2019-10-13 21:04:55,366 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0284283ee/568a885176294d36b125b9ea0a24c365 [2019-10-13 21:04:55,377 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 21:04:55,378 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 21:04:55,379 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 21:04:55,379 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 21:04:55,383 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 21:04:55,384 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:04:55" (1/1) ... [2019-10-13 21:04:55,387 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a4be3b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:04:55, skipping insertion in model container [2019-10-13 21:04:55,387 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:04:55" (1/1) ... [2019-10-13 21:04:55,395 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 21:04:55,450 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 21:04:55,905 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:04:55,916 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 21:04:55,961 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:04:56,014 INFO L192 MainTranslator]: Completed translation [2019-10-13 21:04:56,015 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:04:56 WrapperNode [2019-10-13 21:04:56,015 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 21:04:56,016 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 21:04:56,016 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 21:04:56,016 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 21:04:56,029 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:04:56" (1/1) ... [2019-10-13 21:04:56,029 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:04:56" (1/1) ... [2019-10-13 21:04:56,047 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:04:56" (1/1) ... [2019-10-13 21:04:56,047 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:04:56" (1/1) ... [2019-10-13 21:04:56,074 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:04:56" (1/1) ... [2019-10-13 21:04:56,081 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:04:56" (1/1) ... [2019-10-13 21:04:56,085 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:04:56" (1/1) ... [2019-10-13 21:04:56,091 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 21:04:56,092 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 21:04:56,092 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 21:04:56,092 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 21:04:56,093 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:04:56" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 21:04:56,156 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 21:04:56,156 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 21:04:56,156 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-10-13 21:04:56,156 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-10-13 21:04:56,157 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2019-10-13 21:04:56,157 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2019-10-13 21:04:56,157 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_circular_create [2019-10-13 21:04:56,157 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_circular_destroy [2019-10-13 21:04:56,157 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_circular_get_data_at [2019-10-13 21:04:56,158 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_circular_update_at [2019-10-13 21:04:56,158 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 21:04:56,158 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 21:04:56,158 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-10-13 21:04:56,159 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-10-13 21:04:56,159 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-10-13 21:04:56,159 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-10-13 21:04:56,160 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-10-13 21:04:56,160 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-10-13 21:04:56,160 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-10-13 21:04:56,161 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-10-13 21:04:56,161 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-10-13 21:04:56,161 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-10-13 21:04:56,161 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-10-13 21:04:56,161 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-10-13 21:04:56,162 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-10-13 21:04:56,162 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-10-13 21:04:56,162 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-10-13 21:04:56,162 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-10-13 21:04:56,163 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-10-13 21:04:56,163 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-10-13 21:04:56,163 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-10-13 21:04:56,163 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-10-13 21:04:56,163 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-10-13 21:04:56,164 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-10-13 21:04:56,164 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-10-13 21:04:56,164 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-10-13 21:04:56,164 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-10-13 21:04:56,164 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-10-13 21:04:56,164 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-10-13 21:04:56,164 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-10-13 21:04:56,164 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-10-13 21:04:56,165 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-10-13 21:04:56,165 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-10-13 21:04:56,165 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-10-13 21:04:56,165 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-10-13 21:04:56,165 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-10-13 21:04:56,165 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-10-13 21:04:56,165 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-10-13 21:04:56,165 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-10-13 21:04:56,166 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-10-13 21:04:56,166 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-10-13 21:04:56,166 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-10-13 21:04:56,166 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-10-13 21:04:56,166 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-10-13 21:04:56,166 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-10-13 21:04:56,167 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-10-13 21:04:56,167 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-10-13 21:04:56,167 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-10-13 21:04:56,167 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-10-13 21:04:56,168 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-10-13 21:04:56,168 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-10-13 21:04:56,169 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-10-13 21:04:56,169 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-10-13 21:04:56,169 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-10-13 21:04:56,170 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 21:04:56,170 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-13 21:04:56,170 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-10-13 21:04:56,170 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 21:04:56,171 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-10-13 21:04:56,171 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-10-13 21:04:56,171 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-10-13 21:04:56,172 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-10-13 21:04:56,172 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-10-13 21:04:56,173 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-10-13 21:04:56,173 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-10-13 21:04:56,173 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-10-13 21:04:56,173 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-10-13 21:04:56,174 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-13 21:04:56,174 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-10-13 21:04:56,174 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-10-13 21:04:56,175 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-10-13 21:04:56,175 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-10-13 21:04:56,175 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-10-13 21:04:56,175 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-10-13 21:04:56,175 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-10-13 21:04:56,176 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-10-13 21:04:56,176 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-10-13 21:04:56,177 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-10-13 21:04:56,178 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-10-13 21:04:56,178 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-10-13 21:04:56,178 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-10-13 21:04:56,178 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-10-13 21:04:56,178 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-10-13 21:04:56,178 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-10-13 21:04:56,178 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-10-13 21:04:56,179 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-10-13 21:04:56,179 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-10-13 21:04:56,179 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-10-13 21:04:56,179 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-10-13 21:04:56,179 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-10-13 21:04:56,179 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-10-13 21:04:56,179 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-10-13 21:04:56,180 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-10-13 21:04:56,180 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-10-13 21:04:56,180 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-10-13 21:04:56,180 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-10-13 21:04:56,180 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-10-13 21:04:56,180 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-10-13 21:04:56,180 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-10-13 21:04:56,181 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-10-13 21:04:56,181 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-10-13 21:04:56,181 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-10-13 21:04:56,181 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-10-13 21:04:56,181 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-10-13 21:04:56,181 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-10-13 21:04:56,181 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-10-13 21:04:56,182 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-10-13 21:04:56,182 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2019-10-13 21:04:56,182 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2019-10-13 21:04:56,182 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 21:04:56,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 21:04:56,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 21:04:56,183 INFO L130 BoogieDeclarations]: Found specification of procedure sll_circular_create [2019-10-13 21:04:56,184 INFO L130 BoogieDeclarations]: Found specification of procedure sll_circular_destroy [2019-10-13 21:04:56,184 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 21:04:56,184 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 21:04:56,184 INFO L130 BoogieDeclarations]: Found specification of procedure sll_circular_get_data_at [2019-10-13 21:04:56,184 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 21:04:56,184 INFO L130 BoogieDeclarations]: Found specification of procedure sll_circular_update_at [2019-10-13 21:04:56,184 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 21:04:56,184 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 21:04:56,185 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 21:04:56,582 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2019-10-13 21:04:56,811 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 21:04:56,811 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-10-13 21:04:56,813 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:04:56 BoogieIcfgContainer [2019-10-13 21:04:56,815 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 21:04:56,816 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 21:04:56,816 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 21:04:56,822 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 21:04:56,822 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 09:04:55" (1/3) ... [2019-10-13 21:04:56,823 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6783c077 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:04:56, skipping insertion in model container [2019-10-13 21:04:56,824 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:04:56" (2/3) ... [2019-10-13 21:04:56,825 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6783c077 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:04:56, skipping insertion in model container [2019-10-13 21:04:56,832 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:04:56" (3/3) ... [2019-10-13 21:04:56,835 INFO L109 eAbstractionObserver]: Analyzing ICFG sll2c_update_all_reverse.i [2019-10-13 21:04:56,846 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 21:04:56,856 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 21:04:56,868 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 21:04:56,894 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 21:04:56,895 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 21:04:56,895 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 21:04:56,895 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 21:04:56,895 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 21:04:56,895 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 21:04:56,895 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 21:04:56,896 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 21:04:56,911 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states. [2019-10-13 21:04:56,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-10-13 21:04:56,918 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:04:56,919 INFO L380 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] [2019-10-13 21:04:56,921 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:04:56,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:04:56,927 INFO L82 PathProgramCache]: Analyzing trace with hash 1158667966, now seen corresponding path program 1 times [2019-10-13 21:04:56,937 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:04:56,937 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316327024] [2019-10-13 21:04:56,938 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:04:56,938 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:04:56,938 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:04:57,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:04:57,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:04:57,155 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316327024] [2019-10-13 21:04:57,157 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:04:57,159 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 21:04:57,160 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791803080] [2019-10-13 21:04:57,165 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 21:04:57,168 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:04:57,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 21:04:57,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 21:04:57,187 INFO L87 Difference]: Start difference. First operand 58 states. Second operand 2 states. [2019-10-13 21:04:57,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:04:57,214 INFO L93 Difference]: Finished difference Result 95 states and 124 transitions. [2019-10-13 21:04:57,215 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 21:04:57,216 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 32 [2019-10-13 21:04:57,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:04:57,225 INFO L225 Difference]: With dead ends: 95 [2019-10-13 21:04:57,226 INFO L226 Difference]: Without dead ends: 43 [2019-10-13 21:04:57,230 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 21:04:57,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2019-10-13 21:04:57,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2019-10-13 21:04:57,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2019-10-13 21:04:57,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 48 transitions. [2019-10-13 21:04:57,277 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 48 transitions. Word has length 32 [2019-10-13 21:04:57,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:04:57,279 INFO L462 AbstractCegarLoop]: Abstraction has 43 states and 48 transitions. [2019-10-13 21:04:57,279 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 21:04:57,279 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 48 transitions. [2019-10-13 21:04:57,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-10-13 21:04:57,282 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:04:57,282 INFO L380 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] [2019-10-13 21:04:57,283 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:04:57,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:04:57,283 INFO L82 PathProgramCache]: Analyzing trace with hash 1470117915, now seen corresponding path program 1 times [2019-10-13 21:04:57,283 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:04:57,284 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232037001] [2019-10-13 21:04:57,284 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:04:57,284 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:04:57,284 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:04:57,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:04:57,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:04:57,409 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232037001] [2019-10-13 21:04:57,410 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:04:57,410 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-13 21:04:57,410 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402697334] [2019-10-13 21:04:57,412 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-13 21:04:57,412 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:04:57,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-13 21:04:57,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-13 21:04:57,413 INFO L87 Difference]: Start difference. First operand 43 states and 48 transitions. Second operand 4 states. [2019-10-13 21:04:57,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:04:57,503 INFO L93 Difference]: Finished difference Result 66 states and 75 transitions. [2019-10-13 21:04:57,504 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-13 21:04:57,504 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 32 [2019-10-13 21:04:57,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:04:57,506 INFO L225 Difference]: With dead ends: 66 [2019-10-13 21:04:57,506 INFO L226 Difference]: Without dead ends: 53 [2019-10-13 21:04:57,509 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-13 21:04:57,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2019-10-13 21:04:57,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 44. [2019-10-13 21:04:57,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2019-10-13 21:04:57,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 49 transitions. [2019-10-13 21:04:57,530 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 49 transitions. Word has length 32 [2019-10-13 21:04:57,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:04:57,530 INFO L462 AbstractCegarLoop]: Abstraction has 44 states and 49 transitions. [2019-10-13 21:04:57,530 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-13 21:04:57,531 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 49 transitions. [2019-10-13 21:04:57,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2019-10-13 21:04:57,532 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:04:57,532 INFO L380 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, 1, 1, 1] [2019-10-13 21:04:57,533 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:04:57,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:04:57,533 INFO L82 PathProgramCache]: Analyzing trace with hash 758093029, now seen corresponding path program 1 times [2019-10-13 21:04:57,533 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:04:57,534 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709653491] [2019-10-13 21:04:57,534 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:04:57,534 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:04:57,534 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:04:57,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:04:57,792 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:04:57,793 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709653491] [2019-10-13 21:04:57,794 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [341661048] [2019-10-13 21:04:57,794 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:04:57,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:04:57,958 INFO L256 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-13 21:04:57,968 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 21:04:58,013 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-13 21:04:58,014 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 21:04:58,113 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-13 21:04:58,113 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-13 21:04:58,114 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [13] total 14 [2019-10-13 21:04:58,114 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888470295] [2019-10-13 21:04:58,115 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-13 21:04:58,115 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:04:58,115 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-13 21:04:58,116 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2019-10-13 21:04:58,116 INFO L87 Difference]: Start difference. First operand 44 states and 49 transitions. Second operand 6 states. [2019-10-13 21:04:58,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:04:58,191 INFO L93 Difference]: Finished difference Result 73 states and 83 transitions. [2019-10-13 21:04:58,191 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-13 21:04:58,191 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 40 [2019-10-13 21:04:58,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:04:58,193 INFO L225 Difference]: With dead ends: 73 [2019-10-13 21:04:58,193 INFO L226 Difference]: Without dead ends: 47 [2019-10-13 21:04:58,194 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 77 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2019-10-13 21:04:58,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2019-10-13 21:04:58,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 45. [2019-10-13 21:04:58,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2019-10-13 21:04:58,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 50 transitions. [2019-10-13 21:04:58,202 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 50 transitions. Word has length 40 [2019-10-13 21:04:58,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:04:58,202 INFO L462 AbstractCegarLoop]: Abstraction has 45 states and 50 transitions. [2019-10-13 21:04:58,202 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-13 21:04:58,202 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 50 transitions. [2019-10-13 21:04:58,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2019-10-13 21:04:58,204 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:04:58,204 INFO L380 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, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:04:58,414 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:04:58,414 INFO L410 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:04:58,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:04:58,415 INFO L82 PathProgramCache]: Analyzing trace with hash -121828803, now seen corresponding path program 1 times [2019-10-13 21:04:58,416 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:04:58,416 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041259468] [2019-10-13 21:04:58,416 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:04:58,416 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:04:58,417 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:04:58,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:04:58,636 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-13 21:04:58,636 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041259468] [2019-10-13 21:04:58,636 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1523499766] [2019-10-13 21:04:58,637 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:04:58,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:04:58,791 INFO L256 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-13 21:04:58,795 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 21:04:58,826 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-13 21:04:58,826 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 21:04:58,927 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-13 21:04:58,927 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-13 21:04:58,928 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [10] total 12 [2019-10-13 21:04:58,928 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615855794] [2019-10-13 21:04:58,928 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 21:04:58,929 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:04:58,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 21:04:58,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2019-10-13 21:04:58,929 INFO L87 Difference]: Start difference. First operand 45 states and 50 transitions. Second operand 7 states. [2019-10-13 21:04:59,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:04:59,041 INFO L93 Difference]: Finished difference Result 79 states and 91 transitions. [2019-10-13 21:04:59,044 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-13 21:04:59,044 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 48 [2019-10-13 21:04:59,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:04:59,048 INFO L225 Difference]: With dead ends: 79 [2019-10-13 21:04:59,048 INFO L226 Difference]: Without dead ends: 58 [2019-10-13 21:04:59,049 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 91 SyntacticMatches, 4 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2019-10-13 21:04:59,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2019-10-13 21:04:59,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 50. [2019-10-13 21:04:59,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2019-10-13 21:04:59,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 57 transitions. [2019-10-13 21:04:59,068 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 57 transitions. Word has length 48 [2019-10-13 21:04:59,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:04:59,069 INFO L462 AbstractCegarLoop]: Abstraction has 50 states and 57 transitions. [2019-10-13 21:04:59,069 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 21:04:59,070 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 57 transitions. [2019-10-13 21:04:59,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2019-10-13 21:04:59,073 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:04:59,074 INFO L380 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:04:59,274 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:04:59,275 INFO L410 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:04:59,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:04:59,275 INFO L82 PathProgramCache]: Analyzing trace with hash -659318812, now seen corresponding path program 1 times [2019-10-13 21:04:59,276 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:04:59,276 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158413287] [2019-10-13 21:04:59,276 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:04:59,277 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:04:59,277 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:04:59,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:04:59,409 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-13 21:04:59,409 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158413287] [2019-10-13 21:04:59,409 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [468340056] [2019-10-13 21:04:59,410 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:04:59,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:04:59,530 INFO L256 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-13 21:04:59,533 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 21:04:59,580 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-10-13 21:04:59,580 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 21:04:59,638 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-10-13 21:04:59,638 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [1962742042] [2019-10-13 21:04:59,647 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 50 [2019-10-13 21:04:59,698 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-13 21:04:59,699 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-13 21:04:59,785 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-13 21:04:59,787 INFO L272 AbstractInterpreter]: Visited 10 different actions 10 times. Never merged. Never widened. Performed 43 root evaluator evaluations with a maximum evaluation depth of 0. Performed 43 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 33 variables. [2019-10-13 21:04:59,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:04:59,792 INFO L536 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-13 21:04:59,877 INFO L227 lantSequenceWeakener]: Weakened 8 states. On average, predicates are now at 86.04% of their original sizes. [2019-10-13 21:04:59,877 INFO L551 sIntCurrentIteration]: Unifying AI predicates [2019-10-13 21:04:59,892 INFO L553 sIntCurrentIteration]: We unified 48 AI predicates to 48 [2019-10-13 21:04:59,893 INFO L562 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-13 21:04:59,893 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-10-13 21:04:59,894 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [12, 5, 5] total 18 [2019-10-13 21:04:59,894 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412481609] [2019-10-13 21:04:59,895 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-13 21:04:59,895 INFO L137 tionRefinementEngine]: Using predicate unifier AbsIntPredicateUnifier provided by strategy TAIPAN [2019-10-13 21:04:59,896 INFO L124 tionRefinementEngine]: Using hoare triple checker CachingHoareTripleCheckerMap provided by strategy [2019-10-13 21:04:59,896 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-13 21:04:59,896 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-13 21:04:59,896 INFO L87 Difference]: Start difference. First operand 50 states and 57 transitions. Second operand 6 states. [2019-10-13 21:04:59,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:04:59,913 INFO L93 Difference]: Finished difference Result 51 states and 58 transitions. [2019-10-13 21:04:59,913 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-13 21:04:59,913 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 49 [2019-10-13 21:04:59,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:04:59,914 INFO L225 Difference]: With dead ends: 51 [2019-10-13 21:04:59,914 INFO L226 Difference]: Without dead ends: 0 [2019-10-13 21:04:59,915 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-10-13 21:04:59,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-13 21:04:59,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-13 21:04:59,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-13 21:04:59,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-13 21:04:59,916 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 49 [2019-10-13 21:04:59,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:04:59,916 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-13 21:04:59,916 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-13 21:04:59,916 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-13 21:04:59,917 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-13 21:05:00,117 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:05:00,123 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-13 21:05:00,226 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-10-13 21:05:00,227 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-10-13 21:05:00,227 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-13 21:05:00,227 INFO L446 ceAbstractionStarter]: At program point L561(line 561) the Hoare annotation is: true [2019-10-13 21:05:00,227 INFO L446 ceAbstractionStarter]: At program point myexitENTRY(lines 560 562) the Hoare annotation is: true [2019-10-13 21:05:00,228 INFO L443 ceAbstractionStarter]: For program point myexitEXIT(lines 560 562) no Hoare annotation was computed. [2019-10-13 21:05:00,228 INFO L443 ceAbstractionStarter]: For program point sll_circular_get_data_atEXIT(lines 595 601) no Hoare annotation was computed. [2019-10-13 21:05:00,228 INFO L446 ceAbstractionStarter]: At program point sll_circular_get_data_atENTRY(lines 595 601) the Hoare annotation is: true [2019-10-13 21:05:00,228 INFO L446 ceAbstractionStarter]: At program point L596-2(lines 596 599) the Hoare annotation is: true [2019-10-13 21:05:00,228 INFO L443 ceAbstractionStarter]: For program point L596-3(lines 596 599) no Hoare annotation was computed. [2019-10-13 21:05:00,228 INFO L443 ceAbstractionStarter]: For program point sll_circular_get_data_atFINAL(lines 595 601) no Hoare annotation was computed. [2019-10-13 21:05:00,228 INFO L443 ceAbstractionStarter]: For program point __bswap_32ENTRY(lines 63 67) no Hoare annotation was computed. [2019-10-13 21:05:00,229 INFO L443 ceAbstractionStarter]: For program point __bswap_32FINAL(lines 63 67) no Hoare annotation was computed. [2019-10-13 21:05:00,229 INFO L443 ceAbstractionStarter]: For program point __bswap_32EXIT(lines 63 67) no Hoare annotation was computed. [2019-10-13 21:05:00,229 INFO L443 ceAbstractionStarter]: For program point __bswap_64ENTRY(lines 68 72) no Hoare annotation was computed. [2019-10-13 21:05:00,229 INFO L443 ceAbstractionStarter]: For program point __bswap_64FINAL(lines 68 72) no Hoare annotation was computed. [2019-10-13 21:05:00,229 INFO L443 ceAbstractionStarter]: For program point __bswap_64EXIT(lines 68 72) no Hoare annotation was computed. [2019-10-13 21:05:00,229 INFO L439 ceAbstractionStarter]: At program point L576(line 576) the Hoare annotation is: (or (not (= |sll_circular_create_#in~len| 2)) (not (= |sll_circular_create_#in~data| 1))) [2019-10-13 21:05:00,230 INFO L443 ceAbstractionStarter]: For program point L576-1(line 576) no Hoare annotation was computed. [2019-10-13 21:05:00,230 INFO L439 ceAbstractionStarter]: At program point L573(line 573) the Hoare annotation is: (or (not (= |sll_circular_create_#in~len| 2)) (not (= |sll_circular_create_#in~data| 1)) (and (= sll_circular_create_~data 1) (= sll_circular_create_~len 2))) [2019-10-13 21:05:00,230 INFO L439 ceAbstractionStarter]: At program point L575-2(lines 575 580) the Hoare annotation is: (or (not (= |sll_circular_create_#in~len| 2)) (not (= |sll_circular_create_#in~data| 1))) [2019-10-13 21:05:00,230 INFO L443 ceAbstractionStarter]: For program point L573-1(line 573) no Hoare annotation was computed. [2019-10-13 21:05:00,230 INFO L443 ceAbstractionStarter]: For program point L575-3(lines 575 580) no Hoare annotation was computed. [2019-10-13 21:05:00,230 INFO L446 ceAbstractionStarter]: At program point sll_circular_createENTRY(lines 572 583) the Hoare annotation is: true [2019-10-13 21:05:00,231 INFO L443 ceAbstractionStarter]: For program point sll_circular_createFINAL(lines 572 583) no Hoare annotation was computed. [2019-10-13 21:05:00,231 INFO L443 ceAbstractionStarter]: For program point sll_circular_createEXIT(lines 572 583) no Hoare annotation was computed. [2019-10-13 21:05:00,231 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-13 21:05:00,231 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-10-13 21:05:00,231 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-13 21:05:00,231 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-13 21:05:00,231 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 609 628) no Hoare annotation was computed. [2019-10-13 21:05:00,231 INFO L443 ceAbstractionStarter]: For program point L624(line 624) no Hoare annotation was computed. [2019-10-13 21:05:00,232 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 609 628) no Hoare annotation was computed. [2019-10-13 21:05:00,232 INFO L439 ceAbstractionStarter]: At program point L620(line 620) the Hoare annotation is: false [2019-10-13 21:05:00,232 INFO L443 ceAbstractionStarter]: For program point L620-1(line 620) no Hoare annotation was computed. [2019-10-13 21:05:00,232 INFO L443 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 626) no Hoare annotation was computed. [2019-10-13 21:05:00,232 INFO L443 ceAbstractionStarter]: For program point L620-2(lines 620 622) no Hoare annotation was computed. [2019-10-13 21:05:00,232 INFO L439 ceAbstractionStarter]: At program point L616(line 616) the Hoare annotation is: false [2019-10-13 21:05:00,233 INFO L443 ceAbstractionStarter]: For program point L618-2(lines 618 623) no Hoare annotation was computed. [2019-10-13 21:05:00,233 INFO L443 ceAbstractionStarter]: For program point L616-1(lines 614 617) no Hoare annotation was computed. [2019-10-13 21:05:00,233 INFO L439 ceAbstractionStarter]: At program point L618-3(lines 618 623) the Hoare annotation is: false [2019-10-13 21:05:00,233 INFO L446 ceAbstractionStarter]: At program point L618-4(lines 618 623) the Hoare annotation is: true [2019-10-13 21:05:00,233 INFO L439 ceAbstractionStarter]: At program point L612(line 612) the Hoare annotation is: (and (= main_~data~0 1) (= main_~len~0 2)) [2019-10-13 21:05:00,233 INFO L439 ceAbstractionStarter]: At program point L614-2(lines 614 617) the Hoare annotation is: false [2019-10-13 21:05:00,233 INFO L443 ceAbstractionStarter]: For program point L612-1(line 612) no Hoare annotation was computed. [2019-10-13 21:05:00,234 INFO L443 ceAbstractionStarter]: For program point L614-3(lines 614 617) no Hoare annotation was computed. [2019-10-13 21:05:00,234 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 609 628) the Hoare annotation is: true [2019-10-13 21:05:00,234 INFO L439 ceAbstractionStarter]: At program point L621(lines 609 628) the Hoare annotation is: false [2019-10-13 21:05:00,234 INFO L446 ceAbstractionStarter]: At program point sll_circular_destroyENTRY(lines 584 594) the Hoare annotation is: true [2019-10-13 21:05:00,234 INFO L443 ceAbstractionStarter]: For program point sll_circular_destroyEXIT(lines 584 594) no Hoare annotation was computed. [2019-10-13 21:05:00,234 INFO L443 ceAbstractionStarter]: For program point L585(lines 585 593) no Hoare annotation was computed. [2019-10-13 21:05:00,234 INFO L446 ceAbstractionStarter]: At program point L587-2(lines 587 591) the Hoare annotation is: true [2019-10-13 21:05:00,235 INFO L443 ceAbstractionStarter]: For program point L587-3(lines 587 591) no Hoare annotation was computed. [2019-10-13 21:05:00,235 INFO L443 ceAbstractionStarter]: For program point L585-2(lines 584 594) no Hoare annotation was computed. [2019-10-13 21:05:00,235 INFO L443 ceAbstractionStarter]: For program point sll_circular_update_atEXIT(lines 602 608) no Hoare annotation was computed. [2019-10-13 21:05:00,235 INFO L446 ceAbstractionStarter]: At program point sll_circular_update_atENTRY(lines 602 608) the Hoare annotation is: true [2019-10-13 21:05:00,235 INFO L443 ceAbstractionStarter]: For program point sll_circular_update_atFINAL(lines 602 608) no Hoare annotation was computed. [2019-10-13 21:05:00,235 INFO L446 ceAbstractionStarter]: At program point L603-2(lines 603 606) the Hoare annotation is: true [2019-10-13 21:05:00,235 INFO L443 ceAbstractionStarter]: For program point L603-3(lines 603 606) no Hoare annotation was computed. [2019-10-13 21:05:00,236 INFO L446 ceAbstractionStarter]: At program point node_createENTRY(lines 563 571) the Hoare annotation is: true [2019-10-13 21:05:00,236 INFO L443 ceAbstractionStarter]: For program point node_createFINAL(lines 563 571) no Hoare annotation was computed. [2019-10-13 21:05:00,236 INFO L446 ceAbstractionStarter]: At program point L566(line 566) the Hoare annotation is: true [2019-10-13 21:05:00,236 INFO L443 ceAbstractionStarter]: For program point node_createEXIT(lines 563 571) no Hoare annotation was computed. [2019-10-13 21:05:00,236 INFO L443 ceAbstractionStarter]: For program point L565(lines 565 567) no Hoare annotation was computed. [2019-10-13 21:05:00,236 INFO L443 ceAbstractionStarter]: For program point L565-1(lines 565 567) no Hoare annotation was computed. [2019-10-13 21:05:00,252 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 09:05:00 BoogieIcfgContainer [2019-10-13 21:05:00,253 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-13 21:05:00,260 INFO L168 Benchmark]: Toolchain (without parser) took 4876.37 ms. Allocated memory was 136.8 MB in the beginning and 251.7 MB in the end (delta: 114.8 MB). Free memory was 100.8 MB in the beginning and 190.2 MB in the end (delta: -89.4 MB). Peak memory consumption was 25.4 MB. Max. memory is 7.1 GB. [2019-10-13 21:05:00,261 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 136.8 MB. Free memory was 120.1 MB in the beginning and 119.9 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2019-10-13 21:05:00,262 INFO L168 Benchmark]: CACSL2BoogieTranslator took 636.19 ms. Allocated memory was 136.8 MB in the beginning and 200.8 MB in the end (delta: 64.0 MB). Free memory was 100.6 MB in the beginning and 166.0 MB in the end (delta: -65.4 MB). Peak memory consumption was 25.1 MB. Max. memory is 7.1 GB. [2019-10-13 21:05:00,263 INFO L168 Benchmark]: Boogie Preprocessor took 76.00 ms. Allocated memory is still 200.8 MB. Free memory was 166.0 MB in the beginning and 163.1 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. [2019-10-13 21:05:00,263 INFO L168 Benchmark]: RCFGBuilder took 723.15 ms. Allocated memory is still 200.8 MB. Free memory was 163.1 MB in the beginning and 114.5 MB in the end (delta: 48.6 MB). Peak memory consumption was 48.6 MB. Max. memory is 7.1 GB. [2019-10-13 21:05:00,264 INFO L168 Benchmark]: TraceAbstraction took 3436.40 ms. Allocated memory was 200.8 MB in the beginning and 251.7 MB in the end (delta: 50.9 MB). Free memory was 114.5 MB in the beginning and 190.2 MB in the end (delta: -75.7 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-10-13 21:05:00,268 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 136.8 MB. Free memory was 120.1 MB in the beginning and 119.9 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 636.19 ms. Allocated memory was 136.8 MB in the beginning and 200.8 MB in the end (delta: 64.0 MB). Free memory was 100.6 MB in the beginning and 166.0 MB in the end (delta: -65.4 MB). Peak memory consumption was 25.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 76.00 ms. Allocated memory is still 200.8 MB. Free memory was 166.0 MB in the beginning and 163.1 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 723.15 ms. Allocated memory is still 200.8 MB. Free memory was 163.1 MB in the beginning and 114.5 MB in the end (delta: 48.6 MB). Peak memory consumption was 48.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3436.40 ms. Allocated memory was 200.8 MB in the beginning and 251.7 MB in the end (delta: 50.9 MB). Free memory was 114.5 MB in the beginning and 190.2 MB in the end (delta: -75.7 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 626]: 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: 575]: Loop Invariant Derived loop invariant: !(\old(len) == 2) || !(\old(data) == 1) - InvariantResult [Line: 614]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 596]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 609]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 603]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 587]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 618]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 561]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 11 procedures, 65 locations, 1 error locations. Result: SAFE, OverallTime: 3.3s, OverallIterations: 5, TraceHistogramMax: 2, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, HoareTripleCheckerStatistics: 201 SDtfs, 68 SDslu, 358 SDs, 0 SdLazy, 84 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 256 GetRequests, 216 SyntacticMatches, 7 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=58occurred 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, 19 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 25 LocationsWithAnnotation, 45 PreInvPairs, 46 NumberOfFragments, 62 HoareAnnotationTreeSize, 45 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 25 FomulaSimplificationsInter, 12 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 338 NumberOfCodeBlocks, 338 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 464 ConstructedInterpolants, 0 QuantifiedInterpolants, 30654 SizeOfPredicates, 7 NumberOfNonLiveVariables, 664 ConjunctsInSsa, 13 ConjunctsInUnsatCore, 11 InterpolantComputations, 6 PerfectInterpolantSequences, 42/48 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: TIME[ms]: 145, ITERATIONS: 1, WAS_STRONG: 1, WEAKENING_RATIO: 0.9522569444444443, AVG_VARS_REMOVED_DURING_WEAKENING: 1.375, AVG_WEAKENED_CONJUNCTS: 0.5, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...