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_append_equal.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 01:03:38,112 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 01:03:38,115 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 01:03:38,136 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 01:03:38,137 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 01:03:38,138 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 01:03:38,140 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 01:03:38,142 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 01:03:38,143 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 01:03:38,144 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 01:03:38,145 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 01:03:38,146 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 01:03:38,146 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 01:03:38,147 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 01:03:38,148 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 01:03:38,149 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 01:03:38,150 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 01:03:38,151 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 01:03:38,153 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 01:03:38,154 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 01:03:38,156 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 01:03:38,157 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 01:03:38,158 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 01:03:38,159 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 01:03:38,161 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 01:03:38,161 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 01:03:38,161 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 01:03:38,162 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 01:03:38,162 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 01:03:38,163 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 01:03:38,164 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 01:03:38,164 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 01:03:38,165 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 01:03:38,166 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 01:03:38,167 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 01:03:38,167 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 01:03:38,168 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 01:03:38,168 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 01:03:38,168 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 01:03:38,169 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 01:03:38,170 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 01:03:38,171 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 [2019-10-15 01:03:38,191 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 01:03:38,191 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 01:03:38,192 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 01:03:38,193 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 01:03:38,193 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 01:03:38,193 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 01:03:38,193 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 01:03:38,194 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 01:03:38,194 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 01:03:38,194 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 01:03:38,195 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 01:03:38,195 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 01:03:38,195 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 01:03:38,196 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 01:03:38,196 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 01:03:38,196 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 01:03:38,196 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 01:03:38,197 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 01:03:38,197 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 01:03:38,197 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 01:03:38,197 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 01:03:38,198 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:03:38,198 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 01:03:38,198 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 01:03:38,198 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 01:03:38,198 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 01:03:38,199 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 01:03:38,199 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 01:03:38,199 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 [2019-10-15 01:03:38,496 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 01:03:38,509 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 01:03:38,513 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 01:03:38,514 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 01:03:38,515 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 01:03:38,516 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-simple/dll2n_append_equal.i [2019-10-15 01:03:38,599 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5304edd52/3113471311ca41d1be4fb0055cf32f0a/FLAG0fe3c1c96 [2019-10-15 01:03:39,197 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 01:03:39,198 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/list-simple/dll2n_append_equal.i [2019-10-15 01:03:39,217 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5304edd52/3113471311ca41d1be4fb0055cf32f0a/FLAG0fe3c1c96 [2019-10-15 01:03:39,515 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5304edd52/3113471311ca41d1be4fb0055cf32f0a [2019-10-15 01:03:39,525 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 01:03:39,527 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 01:03:39,528 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 01:03:39,528 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 01:03:39,531 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 01:03:39,532 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:03:39" (1/1) ... [2019-10-15 01:03:39,536 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33a1ee07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:03:39, skipping insertion in model container [2019-10-15 01:03:39,536 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:03:39" (1/1) ... [2019-10-15 01:03:39,544 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 01:03:39,593 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 01:03:40,017 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:03:40,031 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 01:03:40,083 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:03:40,146 INFO L192 MainTranslator]: Completed translation [2019-10-15 01:03:40,147 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:03:40 WrapperNode [2019-10-15 01:03:40,147 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 01:03:40,148 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 01:03:40,148 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 01:03:40,148 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 01:03:40,162 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:03:40" (1/1) ... [2019-10-15 01:03:40,162 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:03:40" (1/1) ... [2019-10-15 01:03:40,183 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:03:40" (1/1) ... [2019-10-15 01:03:40,183 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:03:40" (1/1) ... [2019-10-15 01:03:40,202 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:03:40" (1/1) ... [2019-10-15 01:03:40,208 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:03:40" (1/1) ... [2019-10-15 01:03:40,212 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:03:40" (1/1) ... [2019-10-15 01:03:40,219 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 01:03:40,220 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 01:03:40,220 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 01:03:40,220 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 01:03:40,221 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:03:40" (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 [2019-10-15 01:03:40,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 01:03:40,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 01:03:40,276 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-10-15 01:03:40,277 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-10-15 01:03:40,277 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2019-10-15 01:03:40,277 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2019-10-15 01:03:40,277 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create [2019-10-15 01:03:40,277 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_destroy [2019-10-15 01:03:40,278 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_append [2019-10-15 01:03:40,278 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 01:03:40,278 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 01:03:40,278 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-10-15 01:03:40,278 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-10-15 01:03:40,279 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-10-15 01:03:40,279 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-10-15 01:03:40,279 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-10-15 01:03:40,279 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-10-15 01:03:40,279 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-10-15 01:03:40,279 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-10-15 01:03:40,280 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-10-15 01:03:40,280 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-10-15 01:03:40,280 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-10-15 01:03:40,280 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-10-15 01:03:40,280 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-10-15 01:03:40,280 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-10-15 01:03:40,281 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-10-15 01:03:40,281 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-10-15 01:03:40,281 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-10-15 01:03:40,281 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-10-15 01:03:40,281 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-10-15 01:03:40,281 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-10-15 01:03:40,282 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-10-15 01:03:40,282 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-10-15 01:03:40,282 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-10-15 01:03:40,282 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-10-15 01:03:40,282 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-10-15 01:03:40,282 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-10-15 01:03:40,283 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-10-15 01:03:40,283 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-10-15 01:03:40,283 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-10-15 01:03:40,283 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-10-15 01:03:40,283 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-10-15 01:03:40,283 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-10-15 01:03:40,284 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-10-15 01:03:40,284 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-10-15 01:03:40,284 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-10-15 01:03:40,284 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-10-15 01:03:40,284 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-10-15 01:03:40,284 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-10-15 01:03:40,285 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-10-15 01:03:40,285 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-10-15 01:03:40,285 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-10-15 01:03:40,285 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-10-15 01:03:40,285 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-10-15 01:03:40,285 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-10-15 01:03:40,285 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-10-15 01:03:40,286 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-10-15 01:03:40,286 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-10-15 01:03:40,286 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-10-15 01:03:40,286 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-10-15 01:03:40,286 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-10-15 01:03:40,286 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-10-15 01:03:40,287 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-10-15 01:03:40,287 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 01:03:40,287 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-15 01:03:40,287 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-10-15 01:03:40,287 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 01:03:40,287 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-10-15 01:03:40,287 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-10-15 01:03:40,288 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-10-15 01:03:40,288 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-10-15 01:03:40,288 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-10-15 01:03:40,288 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-10-15 01:03:40,288 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-10-15 01:03:40,288 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-10-15 01:03:40,288 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-10-15 01:03:40,289 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-15 01:03:40,289 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-10-15 01:03:40,289 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-10-15 01:03:40,289 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-10-15 01:03:40,289 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-10-15 01:03:40,289 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-10-15 01:03:40,290 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-10-15 01:03:40,290 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-10-15 01:03:40,290 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-10-15 01:03:40,290 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-10-15 01:03:40,290 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-10-15 01:03:40,290 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-10-15 01:03:40,291 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-10-15 01:03:40,291 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-10-15 01:03:40,291 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-10-15 01:03:40,291 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-10-15 01:03:40,291 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-10-15 01:03:40,291 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-10-15 01:03:40,291 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-10-15 01:03:40,292 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-10-15 01:03:40,292 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-10-15 01:03:40,292 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-10-15 01:03:40,292 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-10-15 01:03:40,292 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-10-15 01:03:40,292 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-10-15 01:03:40,292 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-10-15 01:03:40,293 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-10-15 01:03:40,293 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-10-15 01:03:40,293 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-10-15 01:03:40,293 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-10-15 01:03:40,293 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-10-15 01:03:40,293 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-10-15 01:03:40,293 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-10-15 01:03:40,294 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-10-15 01:03:40,294 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-10-15 01:03:40,294 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-10-15 01:03:40,294 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-10-15 01:03:40,294 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-10-15 01:03:40,294 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-10-15 01:03:40,295 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-10-15 01:03:40,295 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2019-10-15 01:03:40,295 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2019-10-15 01:03:40,295 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 01:03:40,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 01:03:40,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 01:03:40,295 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create [2019-10-15 01:03:40,296 INFO L130 BoogieDeclarations]: Found specification of procedure dll_destroy [2019-10-15 01:03:40,296 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 01:03:40,296 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 01:03:40,296 INFO L130 BoogieDeclarations]: Found specification of procedure dll_append [2019-10-15 01:03:40,296 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 01:03:40,296 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 01:03:40,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-15 01:03:40,297 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 01:03:40,297 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 01:03:40,297 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 01:03:40,716 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2019-10-15 01:03:40,918 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 01:03:40,918 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-15 01:03:40,920 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:03:40 BoogieIcfgContainer [2019-10-15 01:03:40,920 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 01:03:40,923 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 01:03:40,923 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 01:03:40,926 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 01:03:40,927 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:03:39" (1/3) ... [2019-10-15 01:03:40,928 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b08744a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:03:40, skipping insertion in model container [2019-10-15 01:03:40,929 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:03:40" (2/3) ... [2019-10-15 01:03:40,929 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b08744a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:03:40, skipping insertion in model container [2019-10-15 01:03:40,936 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:03:40" (3/3) ... [2019-10-15 01:03:40,940 INFO L109 eAbstractionObserver]: Analyzing ICFG dll2n_append_equal.i [2019-10-15 01:03:40,952 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 01:03:40,963 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 01:03:40,975 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 01:03:41,015 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 01:03:41,015 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 01:03:41,015 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 01:03:41,016 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 01:03:41,016 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 01:03:41,016 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 01:03:41,016 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 01:03:41,016 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 01:03:41,037 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states. [2019-10-15 01:03:41,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-10-15 01:03:41,043 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:03:41,044 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] [2019-10-15 01:03:41,046 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:03:41,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:03:41,052 INFO L82 PathProgramCache]: Analyzing trace with hash -683309345, now seen corresponding path program 1 times [2019-10-15 01:03:41,061 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:03:41,062 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152349172] [2019-10-15 01:03:41,062 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:03:41,062 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:03:41,063 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:03:41,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:03:41,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:03:41,492 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152349172] [2019-10-15 01:03:41,495 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:03:41,495 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-15 01:03:41,495 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582171065] [2019-10-15 01:03:41,501 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-15 01:03:41,503 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:03:41,515 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-15 01:03:41,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2019-10-15 01:03:41,518 INFO L87 Difference]: Start difference. First operand 51 states. Second operand 10 states. [2019-10-15 01:03:41,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:03:41,780 INFO L93 Difference]: Finished difference Result 100 states and 133 transitions. [2019-10-15 01:03:41,781 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-15 01:03:41,782 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 29 [2019-10-15 01:03:41,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:03:41,793 INFO L225 Difference]: With dead ends: 100 [2019-10-15 01:03:41,793 INFO L226 Difference]: Without dead ends: 50 [2019-10-15 01:03:41,797 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2019-10-15 01:03:41,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2019-10-15 01:03:41,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 42. [2019-10-15 01:03:41,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2019-10-15 01:03:41,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 48 transitions. [2019-10-15 01:03:41,865 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 48 transitions. Word has length 29 [2019-10-15 01:03:41,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:03:41,868 INFO L462 AbstractCegarLoop]: Abstraction has 42 states and 48 transitions. [2019-10-15 01:03:41,868 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-15 01:03:41,869 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 48 transitions. [2019-10-15 01:03:41,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-10-15 01:03:41,873 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:03:41,873 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] [2019-10-15 01:03:41,876 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:03:41,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:03:41,878 INFO L82 PathProgramCache]: Analyzing trace with hash -683307671, now seen corresponding path program 1 times [2019-10-15 01:03:41,879 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:03:41,879 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572608916] [2019-10-15 01:03:41,879 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:03:41,879 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:03:41,880 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:03:41,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:03:42,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:03:42,036 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572608916] [2019-10-15 01:03:42,037 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:03:42,037 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 01:03:42,038 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658233182] [2019-10-15 01:03:42,041 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 01:03:42,041 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:03:42,041 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 01:03:42,042 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 01:03:42,042 INFO L87 Difference]: Start difference. First operand 42 states and 48 transitions. Second operand 5 states. [2019-10-15 01:03:42,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:03:42,091 INFO L93 Difference]: Finished difference Result 76 states and 88 transitions. [2019-10-15 01:03:42,091 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-15 01:03:42,091 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 29 [2019-10-15 01:03:42,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:03:42,093 INFO L225 Difference]: With dead ends: 76 [2019-10-15 01:03:42,093 INFO L226 Difference]: Without dead ends: 47 [2019-10-15 01:03:42,095 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-15 01:03:42,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2019-10-15 01:03:42,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 43. [2019-10-15 01:03:42,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2019-10-15 01:03:42,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 49 transitions. [2019-10-15 01:03:42,103 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 49 transitions. Word has length 29 [2019-10-15 01:03:42,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:03:42,104 INFO L462 AbstractCegarLoop]: Abstraction has 43 states and 49 transitions. [2019-10-15 01:03:42,104 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 01:03:42,104 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 49 transitions. [2019-10-15 01:03:42,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2019-10-15 01:03:42,105 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:03:42,106 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] [2019-10-15 01:03:42,106 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:03:42,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:03:42,106 INFO L82 PathProgramCache]: Analyzing trace with hash 197721565, now seen corresponding path program 1 times [2019-10-15 01:03:42,107 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:03:42,107 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715745962] [2019-10-15 01:03:42,107 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:03:42,107 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:03:42,107 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:03:42,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:03:42,181 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-10-15 01:03:42,181 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715745962] [2019-10-15 01:03:42,181 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:03:42,182 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:03:42,182 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027925406] [2019-10-15 01:03:42,182 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:03:42,183 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:03:42,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:03:42,183 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:03:42,183 INFO L87 Difference]: Start difference. First operand 43 states and 49 transitions. Second operand 3 states. [2019-10-15 01:03:42,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:03:42,208 INFO L93 Difference]: Finished difference Result 81 states and 95 transitions. [2019-10-15 01:03:42,208 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:03:42,209 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 39 [2019-10-15 01:03:42,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:03:42,210 INFO L225 Difference]: With dead ends: 81 [2019-10-15 01:03:42,210 INFO L226 Difference]: Without dead ends: 47 [2019-10-15 01:03:42,211 INFO L600 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 [2019-10-15 01:03:42,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2019-10-15 01:03:42,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 46. [2019-10-15 01:03:42,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2019-10-15 01:03:42,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 53 transitions. [2019-10-15 01:03:42,222 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 53 transitions. Word has length 39 [2019-10-15 01:03:42,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:03:42,225 INFO L462 AbstractCegarLoop]: Abstraction has 46 states and 53 transitions. [2019-10-15 01:03:42,225 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:03:42,225 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 53 transitions. [2019-10-15 01:03:42,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2019-10-15 01:03:42,227 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:03:42,227 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] [2019-10-15 01:03:42,229 INFO L410 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:03:42,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:03:42,229 INFO L82 PathProgramCache]: Analyzing trace with hash -1607716769, now seen corresponding path program 1 times [2019-10-15 01:03:42,230 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:03:42,230 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119131528] [2019-10-15 01:03:42,230 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:03:42,230 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:03:42,231 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:03:42,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:03:42,333 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-10-15 01:03:42,334 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119131528] [2019-10-15 01:03:42,334 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [246702119] [2019-10-15 01:03:42,334 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 [2019-10-15 01:03:42,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:03:42,476 INFO L256 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-15 01:03:42,484 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:03:42,526 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:03:42,528 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:03:42,675 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-10-15 01:03:42,675 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [1523469327] [2019-10-15 01:03:42,683 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 40 [2019-10-15 01:03:42,734 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-15 01:03:42,734 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-15 01:03:42,817 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-15 01:03:42,819 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 28 variables. [2019-10-15 01:03:42,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:03:42,823 INFO L536 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-15 01:03:42,884 INFO L227 lantSequenceWeakener]: Weakened 4 states. On average, predicates are now at 100% of their original sizes. [2019-10-15 01:03:42,884 INFO L551 sIntCurrentIteration]: Unifying AI predicates [2019-10-15 01:03:42,886 INFO L553 sIntCurrentIteration]: We unified 38 AI predicates to 38 [2019-10-15 01:03:42,886 INFO L562 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-15 01:03:42,887 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-10-15 01:03:42,887 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6, 6, 6] total 8 [2019-10-15 01:03:42,887 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214126188] [2019-10-15 01:03:42,888 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 01:03:42,888 INFO L137 tionRefinementEngine]: Using predicate unifier AbsIntPredicateUnifier provided by strategy TAIPAN [2019-10-15 01:03:42,889 INFO L124 tionRefinementEngine]: Using hoare triple checker CachingHoareTripleCheckerMap provided by strategy [2019-10-15 01:03:42,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 01:03:42,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:03:42,889 INFO L87 Difference]: Start difference. First operand 46 states and 53 transitions. Second operand 2 states. [2019-10-15 01:03:42,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:03:42,892 INFO L93 Difference]: Finished difference Result 46 states and 53 transitions. [2019-10-15 01:03:42,892 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 01:03:42,892 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 39 [2019-10-15 01:03:42,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:03:42,893 INFO L225 Difference]: With dead ends: 46 [2019-10-15 01:03:42,893 INFO L226 Difference]: Without dead ends: 0 [2019-10-15 01:03:42,894 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:03:42,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-15 01:03:42,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-15 01:03:42,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-15 01:03:42,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-15 01:03:42,895 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 39 [2019-10-15 01:03:42,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:03:42,895 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-15 01:03:42,895 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 01:03:42,895 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-15 01:03:42,895 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-15 01:03:43,100 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:03:43,108 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-15 01:03:43,149 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-10-15 01:03:43,149 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-10-15 01:03:43,149 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-15 01:03:43,149 INFO L446 ceAbstractionStarter]: At program point myexitENTRY(lines 561 563) the Hoare annotation is: true [2019-10-15 01:03:43,150 INFO L443 ceAbstractionStarter]: For program point myexitEXIT(lines 561 563) no Hoare annotation was computed. [2019-10-15 01:03:43,150 INFO L446 ceAbstractionStarter]: At program point L562(line 562) the Hoare annotation is: true [2019-10-15 01:03:43,150 INFO L446 ceAbstractionStarter]: At program point L577(line 577) the Hoare annotation is: true [2019-10-15 01:03:43,150 INFO L443 ceAbstractionStarter]: For program point L577-1(line 577) no Hoare annotation was computed. [2019-10-15 01:03:43,151 INFO L446 ceAbstractionStarter]: At program point dll_createENTRY(lines 574 587) the Hoare annotation is: true [2019-10-15 01:03:43,151 INFO L446 ceAbstractionStarter]: At program point L576-2(lines 576 585) the Hoare annotation is: true [2019-10-15 01:03:43,151 INFO L443 ceAbstractionStarter]: For program point L576-3(lines 576 585) no Hoare annotation was computed. [2019-10-15 01:03:43,151 INFO L443 ceAbstractionStarter]: For program point dll_createEXIT(lines 574 587) no Hoare annotation was computed. [2019-10-15 01:03:43,152 INFO L443 ceAbstractionStarter]: For program point dll_createFINAL(lines 574 587) no Hoare annotation was computed. [2019-10-15 01:03:43,152 INFO L443 ceAbstractionStarter]: For program point L580(lines 580 582) no Hoare annotation was computed. [2019-10-15 01:03:43,152 INFO L443 ceAbstractionStarter]: For program point L580-2(lines 580 582) no Hoare annotation was computed. [2019-10-15 01:03:43,152 INFO L443 ceAbstractionStarter]: For program point L601-1(lines 601 603) no Hoare annotation was computed. [2019-10-15 01:03:43,152 INFO L446 ceAbstractionStarter]: At program point L601-3(lines 601 603) the Hoare annotation is: true [2019-10-15 01:03:43,152 INFO L443 ceAbstractionStarter]: For program point L597(lines 597 606) no Hoare annotation was computed. [2019-10-15 01:03:43,152 INFO L443 ceAbstractionStarter]: For program point L601-4(lines 601 603) no Hoare annotation was computed. [2019-10-15 01:03:43,153 INFO L446 ceAbstractionStarter]: At program point L596(line 596) the Hoare annotation is: true [2019-10-15 01:03:43,153 INFO L443 ceAbstractionStarter]: For program point L596-1(line 596) no Hoare annotation was computed. [2019-10-15 01:03:43,153 INFO L443 ceAbstractionStarter]: For program point L597-2(lines 595 607) no Hoare annotation was computed. [2019-10-15 01:03:43,153 INFO L446 ceAbstractionStarter]: At program point dll_appendENTRY(lines 595 607) the Hoare annotation is: true [2019-10-15 01:03:43,153 INFO L443 ceAbstractionStarter]: For program point dll_appendEXIT(lines 595 607) no Hoare annotation was computed. [2019-10-15 01:03:43,153 INFO L443 ceAbstractionStarter]: For program point __bswap_32ENTRY(lines 63 67) no Hoare annotation was computed. [2019-10-15 01:03:43,153 INFO L443 ceAbstractionStarter]: For program point __bswap_32FINAL(lines 63 67) no Hoare annotation was computed. [2019-10-15 01:03:43,153 INFO L443 ceAbstractionStarter]: For program point __bswap_32EXIT(lines 63 67) no Hoare annotation was computed. [2019-10-15 01:03:43,154 INFO L443 ceAbstractionStarter]: For program point __bswap_64ENTRY(lines 68 72) no Hoare annotation was computed. [2019-10-15 01:03:43,154 INFO L443 ceAbstractionStarter]: For program point __bswap_64FINAL(lines 68 72) no Hoare annotation was computed. [2019-10-15 01:03:43,154 INFO L443 ceAbstractionStarter]: For program point __bswap_64EXIT(lines 68 72) no Hoare annotation was computed. [2019-10-15 01:03:43,154 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-15 01:03:43,154 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-10-15 01:03:43,154 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-15 01:03:43,154 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-15 01:03:43,154 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 608 629) no Hoare annotation was computed. [2019-10-15 01:03:43,154 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 608 629) no Hoare annotation was computed. [2019-10-15 01:03:43,155 INFO L443 ceAbstractionStarter]: For program point L616(lines 616 618) no Hoare annotation was computed. [2019-10-15 01:03:43,155 INFO L439 ceAbstractionStarter]: At program point L612(line 612) the Hoare annotation is: false [2019-10-15 01:03:43,155 INFO L443 ceAbstractionStarter]: For program point L612-1(line 612) no Hoare annotation was computed. [2019-10-15 01:03:43,155 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 608 629) the Hoare annotation is: true [2019-10-15 01:03:43,155 INFO L443 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 627) no Hoare annotation was computed. [2019-10-15 01:03:43,155 INFO L446 ceAbstractionStarter]: At program point L625(line 625) the Hoare annotation is: true [2019-10-15 01:03:43,156 INFO L443 ceAbstractionStarter]: For program point L625-1(line 625) no Hoare annotation was computed. [2019-10-15 01:03:43,156 INFO L439 ceAbstractionStarter]: At program point L623(lines 608 629) the Hoare annotation is: false [2019-10-15 01:03:43,156 INFO L439 ceAbstractionStarter]: At program point L615-2(lines 615 621) the Hoare annotation is: false [2019-10-15 01:03:43,156 INFO L443 ceAbstractionStarter]: For program point L615-3(lines 608 629) no Hoare annotation was computed. [2019-10-15 01:03:43,156 INFO L439 ceAbstractionStarter]: At program point L611(line 611) the Hoare annotation is: false [2019-10-15 01:03:43,157 INFO L443 ceAbstractionStarter]: For program point L611-1(line 611) no Hoare annotation was computed. [2019-10-15 01:03:43,157 INFO L443 ceAbstractionStarter]: For program point dll_destroyEXIT(lines 588 594) no Hoare annotation was computed. [2019-10-15 01:03:43,157 INFO L446 ceAbstractionStarter]: At program point dll_destroyENTRY(lines 588 594) the Hoare annotation is: true [2019-10-15 01:03:43,157 INFO L446 ceAbstractionStarter]: At program point L589-2(lines 589 593) the Hoare annotation is: true [2019-10-15 01:03:43,158 INFO L443 ceAbstractionStarter]: For program point L589-3(lines 588 594) no Hoare annotation was computed. [2019-10-15 01:03:43,161 INFO L446 ceAbstractionStarter]: At program point node_createENTRY(lines 564 573) the Hoare annotation is: true [2019-10-15 01:03:43,161 INFO L443 ceAbstractionStarter]: For program point node_createFINAL(lines 564 573) no Hoare annotation was computed. [2019-10-15 01:03:43,161 INFO L446 ceAbstractionStarter]: At program point L567(line 567) the Hoare annotation is: true [2019-10-15 01:03:43,161 INFO L443 ceAbstractionStarter]: For program point L566(lines 566 568) no Hoare annotation was computed. [2019-10-15 01:03:43,161 INFO L443 ceAbstractionStarter]: For program point node_createEXIT(lines 564 573) no Hoare annotation was computed. [2019-10-15 01:03:43,162 INFO L443 ceAbstractionStarter]: For program point L566-1(lines 566 568) no Hoare annotation was computed. [2019-10-15 01:03:43,172 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 01:03:43 BoogieIcfgContainer [2019-10-15 01:03:43,173 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-15 01:03:43,180 INFO L168 Benchmark]: Toolchain (without parser) took 3648.01 ms. Allocated memory was 137.4 MB in the beginning and 252.2 MB in the end (delta: 114.8 MB). Free memory was 100.6 MB in the beginning and 202.2 MB in the end (delta: -101.6 MB). Peak memory consumption was 13.2 MB. Max. memory is 7.1 GB. [2019-10-15 01:03:43,183 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 137.4 MB. Free memory was 120.6 MB in the beginning and 120.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-15 01:03:43,187 INFO L168 Benchmark]: CACSL2BoogieTranslator took 619.63 ms. Allocated memory was 137.4 MB in the beginning and 201.3 MB in the end (delta: 64.0 MB). Free memory was 100.3 MB in the beginning and 166.5 MB in the end (delta: -66.2 MB). Peak memory consumption was 25.8 MB. Max. memory is 7.1 GB. [2019-10-15 01:03:43,191 INFO L168 Benchmark]: Boogie Preprocessor took 71.74 ms. Allocated memory is still 201.3 MB. Free memory was 166.5 MB in the beginning and 163.5 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 7.1 GB. [2019-10-15 01:03:43,191 INFO L168 Benchmark]: RCFGBuilder took 700.20 ms. Allocated memory is still 201.3 MB. Free memory was 163.5 MB in the beginning and 114.3 MB in the end (delta: 49.2 MB). Peak memory consumption was 49.2 MB. Max. memory is 7.1 GB. [2019-10-15 01:03:43,193 INFO L168 Benchmark]: TraceAbstraction took 2249.96 ms. Allocated memory was 201.3 MB in the beginning and 252.2 MB in the end (delta: 50.9 MB). Free memory was 113.6 MB in the beginning and 202.2 MB in the end (delta: -88.5 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-10-15 01:03:43,200 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 137.4 MB. Free memory was 120.6 MB in the beginning and 120.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 619.63 ms. Allocated memory was 137.4 MB in the beginning and 201.3 MB in the end (delta: 64.0 MB). Free memory was 100.3 MB in the beginning and 166.5 MB in the end (delta: -66.2 MB). Peak memory consumption was 25.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 71.74 ms. Allocated memory is still 201.3 MB. Free memory was 166.5 MB in the beginning and 163.5 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 700.20 ms. Allocated memory is still 201.3 MB. Free memory was 163.5 MB in the beginning and 114.3 MB in the end (delta: 49.2 MB). Peak memory consumption was 49.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2249.96 ms. Allocated memory was 201.3 MB in the beginning and 252.2 MB in the end (delta: 50.9 MB). Free memory was 113.6 MB in the beginning and 202.2 MB in the end (delta: -88.5 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 627]: 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: 615]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 608]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 601]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 589]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 576]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 58 locations, 1 error locations. Result: SAFE, OverallTime: 2.1s, OverallIterations: 4, TraceHistogramMax: 2, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 133 SDtfs, 48 SDslu, 384 SDs, 0 SdLazy, 127 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 60 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=51occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 13 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 21 LocationsWithAnnotation, 46 PreInvPairs, 48 NumberOfFragments, 21 HoareAnnotationTreeSize, 46 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 21 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 175 NumberOfCodeBlocks, 175 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 208 ConstructedInterpolants, 0 QuantifiedInterpolants, 13616 SizeOfPredicates, 2 NumberOfNonLiveVariables, 231 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 6 InterpolantComputations, 3 PerfectInterpolantSequences, 21/24 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: TIME[ms]: 141, ITERATIONS: 1, WAS_STRONG: 1, WEAKENING_RATIO: 0.9736842105263158, AVG_VARS_REMOVED_DURING_WEAKENING: 1.5, AVG_WEAKENED_CONJUNCTS: 0.15789473684210525, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...