/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic DAGSIZE --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 2 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/list-simple/dll2n_update_all_reverse.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 20:02:34,268 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 20:02:34,270 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 20:02:34,284 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 20:02:34,285 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 20:02:34,286 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 20:02:34,287 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 20:02:34,289 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 20:02:34,291 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 20:02:34,291 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 20:02:34,292 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 20:02:34,294 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 20:02:34,294 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 20:02:34,295 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 20:02:34,296 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 20:02:34,297 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 20:02:34,298 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 20:02:34,299 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 20:02:34,301 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 20:02:34,303 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 20:02:34,305 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 20:02:34,306 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 20:02:34,312 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 20:02:34,313 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 20:02:34,322 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-21 20:02:34,323 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-21 20:02:34,324 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-21 20:02:34,325 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-21 20:02:34,326 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-21 20:02:34,327 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-21 20:02:34,327 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-21 20:02:34,328 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-21 20:02:34,329 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-21 20:02:34,330 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-21 20:02:34,332 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-21 20:02:34,332 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-21 20:02:34,333 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-21 20:02:34,333 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-21 20:02:34,333 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 20:02:34,334 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 20:02:34,335 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 20:02:34,336 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 [2020-07-21 20:02:34,355 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 20:02:34,356 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 20:02:34,357 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 20:02:34,358 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 20:02:34,358 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 20:02:34,358 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 20:02:34,358 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 20:02:34,358 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 20:02:34,359 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 20:02:34,359 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 20:02:34,359 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 20:02:34,359 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 20:02:34,359 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 20:02:34,360 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 20:02:34,360 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 20:02:34,360 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 20:02:34,360 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 20:02:34,360 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 20:02:34,361 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 20:02:34,361 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 20:02:34,361 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 20:02:34,361 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 20:02:34,362 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 20:02:34,362 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 20:02:34,362 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 20:02:34,362 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 20:02:34,362 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:02:34,363 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 20:02:34,363 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 20:02:34,363 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> DAGSIZE Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 2 [2020-07-21 20:02:34,678 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 20:02:34,700 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 20:02:34,704 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 20:02:34,708 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 20:02:34,708 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 20:02:34,711 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-simple/dll2n_update_all_reverse.i [2020-07-21 20:02:34,807 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/63853d968/a2beeec2a4c74821a8c99ccc758735de/FLAG727c36755 [2020-07-21 20:02:35,516 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 20:02:35,517 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/list-simple/dll2n_update_all_reverse.i [2020-07-21 20:02:35,537 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/63853d968/a2beeec2a4c74821a8c99ccc758735de/FLAG727c36755 [2020-07-21 20:02:35,739 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/63853d968/a2beeec2a4c74821a8c99ccc758735de [2020-07-21 20:02:35,752 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 20:02:35,755 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 20:02:35,757 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 20:02:35,757 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 20:02:35,761 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 20:02:35,762 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 08:02:35" (1/1) ... [2020-07-21 20:02:35,765 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@480139cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:02:35, skipping insertion in model container [2020-07-21 20:02:35,765 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 08:02:35" (1/1) ... [2020-07-21 20:02:35,773 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 20:02:35,839 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 20:02:36,391 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 20:02:36,409 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 20:02:36,469 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 20:02:36,548 INFO L208 MainTranslator]: Completed translation [2020-07-21 20:02:36,548 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:02:36 WrapperNode [2020-07-21 20:02:36,549 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 20:02:36,551 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 20:02:36,551 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 20:02:36,552 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 20:02:36,566 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:02:36" (1/1) ... [2020-07-21 20:02:36,567 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:02:36" (1/1) ... [2020-07-21 20:02:36,587 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:02:36" (1/1) ... [2020-07-21 20:02:36,588 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:02:36" (1/1) ... [2020-07-21 20:02:36,609 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:02:36" (1/1) ... [2020-07-21 20:02:36,622 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:02:36" (1/1) ... [2020-07-21 20:02:36,629 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:02:36" (1/1) ... [2020-07-21 20:02:36,636 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 20:02:36,637 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 20:02:36,638 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 20:02:36,638 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 20:02:36,640 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:02:36" (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 [2020-07-21 20:02:36,719 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 20:02:36,719 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 20:02:36,719 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-07-21 20:02:36,719 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-07-21 20:02:36,719 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2020-07-21 20:02:36,720 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2020-07-21 20:02:36,720 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create [2020-07-21 20:02:36,720 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_destroy [2020-07-21 20:02:36,720 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_get_data_at [2020-07-21 20:02:36,720 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_update_at [2020-07-21 20:02:36,721 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 20:02:36,721 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 20:02:36,721 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-07-21 20:02:36,721 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-07-21 20:02:36,722 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-07-21 20:02:36,722 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-07-21 20:02:36,722 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-07-21 20:02:36,722 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-07-21 20:02:36,722 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-07-21 20:02:36,723 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-07-21 20:02:36,723 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-07-21 20:02:36,723 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-07-21 20:02:36,723 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-07-21 20:02:36,723 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-07-21 20:02:36,724 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-07-21 20:02:36,724 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-07-21 20:02:36,724 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-07-21 20:02:36,724 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-07-21 20:02:36,724 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-07-21 20:02:36,725 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-07-21 20:02:36,725 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-07-21 20:02:36,725 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-07-21 20:02:36,725 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-07-21 20:02:36,725 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-07-21 20:02:36,725 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-07-21 20:02:36,725 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-07-21 20:02:36,726 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-07-21 20:02:36,726 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-07-21 20:02:36,726 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-07-21 20:02:36,726 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-07-21 20:02:36,726 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-07-21 20:02:36,726 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-07-21 20:02:36,727 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-07-21 20:02:36,727 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-07-21 20:02:36,727 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-07-21 20:02:36,727 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-07-21 20:02:36,727 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-07-21 20:02:36,727 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-07-21 20:02:36,727 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-07-21 20:02:36,728 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-07-21 20:02:36,728 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-07-21 20:02:36,728 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-07-21 20:02:36,728 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-07-21 20:02:36,728 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-07-21 20:02:36,728 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-07-21 20:02:36,729 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-07-21 20:02:36,729 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-07-21 20:02:36,729 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-07-21 20:02:36,729 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-07-21 20:02:36,729 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-07-21 20:02:36,730 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-07-21 20:02:36,730 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-07-21 20:02:36,730 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-07-21 20:02:36,730 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-07-21 20:02:36,730 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-21 20:02:36,730 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-07-21 20:02:36,731 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-07-21 20:02:36,731 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-21 20:02:36,731 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-07-21 20:02:36,731 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-07-21 20:02:36,731 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-07-21 20:02:36,731 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-07-21 20:02:36,732 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-07-21 20:02:36,732 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-21 20:02:36,732 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-07-21 20:02:36,732 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-07-21 20:02:36,732 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-07-21 20:02:36,732 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-21 20:02:36,733 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-07-21 20:02:36,733 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-07-21 20:02:36,733 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-07-21 20:02:36,733 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-07-21 20:02:36,733 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-07-21 20:02:36,733 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-07-21 20:02:36,734 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-07-21 20:02:36,734 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-07-21 20:02:36,734 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-07-21 20:02:36,734 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-07-21 20:02:36,734 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-07-21 20:02:36,734 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-07-21 20:02:36,735 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-07-21 20:02:36,735 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-07-21 20:02:36,735 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-07-21 20:02:36,735 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-07-21 20:02:36,735 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-07-21 20:02:36,735 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-07-21 20:02:36,736 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-07-21 20:02:36,736 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-07-21 20:02:36,736 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-07-21 20:02:36,736 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-07-21 20:02:36,736 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-07-21 20:02:36,736 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-07-21 20:02:36,737 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-07-21 20:02:36,737 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-07-21 20:02:36,737 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-07-21 20:02:36,737 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-07-21 20:02:36,737 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-07-21 20:02:36,737 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-07-21 20:02:36,738 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-07-21 20:02:36,738 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-07-21 20:02:36,738 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-07-21 20:02:36,738 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-07-21 20:02:36,738 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-07-21 20:02:36,738 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-07-21 20:02:36,739 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-07-21 20:02:36,739 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-07-21 20:02:36,739 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-07-21 20:02:36,739 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2020-07-21 20:02:36,739 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2020-07-21 20:02:36,739 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-21 20:02:36,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-21 20:02:36,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-21 20:02:36,740 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create [2020-07-21 20:02:36,740 INFO L130 BoogieDeclarations]: Found specification of procedure dll_destroy [2020-07-21 20:02:36,740 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-21 20:02:36,741 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-21 20:02:36,741 INFO L130 BoogieDeclarations]: Found specification of procedure dll_get_data_at [2020-07-21 20:02:36,741 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-21 20:02:36,741 INFO L130 BoogieDeclarations]: Found specification of procedure dll_update_at [2020-07-21 20:02:36,741 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 20:02:36,741 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 20:02:36,741 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 20:02:37,352 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2020-07-21 20:02:37,602 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 20:02:37,602 INFO L295 CfgBuilder]: Removed 6 assume(true) statements. [2020-07-21 20:02:37,609 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 08:02:37 BoogieIcfgContainer [2020-07-21 20:02:37,609 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 20:02:37,611 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 20:02:37,611 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 20:02:37,616 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 20:02:37,616 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 08:02:35" (1/3) ... [2020-07-21 20:02:37,618 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e67cc8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 08:02:37, skipping insertion in model container [2020-07-21 20:02:37,618 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:02:36" (2/3) ... [2020-07-21 20:02:37,618 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e67cc8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 08:02:37, skipping insertion in model container [2020-07-21 20:02:37,619 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 08:02:37" (3/3) ... [2020-07-21 20:02:37,620 INFO L109 eAbstractionObserver]: Analyzing ICFG dll2n_update_all_reverse.i [2020-07-21 20:02:37,631 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 20:02:37,642 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 20:02:37,660 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 20:02:37,694 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 20:02:37,694 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 20:02:37,694 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 20:02:37,694 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 20:02:37,695 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 20:02:37,695 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 20:02:37,695 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 20:02:37,695 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 20:02:37,718 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states. [2020-07-21 20:02:37,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-07-21 20:02:37,728 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:02:37,729 INFO L422 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] [2020-07-21 20:02:37,730 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:02:37,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:02:37,735 INFO L82 PathProgramCache]: Analyzing trace with hash 1303429635, now seen corresponding path program 1 times [2020-07-21 20:02:37,742 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:02:37,743 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [407124978] [2020-07-21 20:02:37,744 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:02:37,982 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 1 check-sat command(s) [2020-07-21 20:02:37,982 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:02:37,986 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-21 20:02:37,998 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:02:38,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:02:38,077 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:02:38,079 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [407124978] [2020-07-21 20:02:38,080 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:02:38,080 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-21 20:02:38,082 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277107429] [2020-07-21 20:02:38,091 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-21 20:02:38,091 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:02:38,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-21 20:02:38,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-21 20:02:38,109 INFO L87 Difference]: Start difference. First operand 51 states. Second operand 4 states. [2020-07-21 20:02:38,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:02:38,194 INFO L93 Difference]: Finished difference Result 78 states and 105 transitions. [2020-07-21 20:02:38,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-21 20:02:38,196 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2020-07-21 20:02:38,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:02:38,203 INFO L225 Difference]: With dead ends: 78 [2020-07-21 20:02:38,203 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 20:02:38,207 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-21 20:02:38,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 20:02:38,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 20:02:38,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 20:02:38,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 20:02:38,241 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 25 [2020-07-21 20:02:38,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:02:38,241 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 20:02:38,242 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-21 20:02:38,242 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 20:02:38,242 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 20:02:38,449 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:02:38,453 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 20:02:38,647 INFO L271 CegarLoopResult]: At program point L607-2(lines 607 610) the Hoare annotation is: true [2020-07-21 20:02:38,648 INFO L268 CegarLoopResult]: For program point L607-3(lines 607 610) no Hoare annotation was computed. [2020-07-21 20:02:38,648 INFO L271 CegarLoopResult]: At program point dll_update_atENTRY(lines 606 612) the Hoare annotation is: true [2020-07-21 20:02:38,648 INFO L268 CegarLoopResult]: For program point dll_update_atEXIT(lines 606 612) no Hoare annotation was computed. [2020-07-21 20:02:38,648 INFO L268 CegarLoopResult]: For program point dll_update_atFINAL(lines 606 612) no Hoare annotation was computed. [2020-07-21 20:02:38,649 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 20:02:38,649 INFO L271 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2020-07-21 20:02:38,649 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 20:02:38,649 INFO L271 CegarLoopResult]: At program point myexitENTRY(lines 561 563) the Hoare annotation is: true [2020-07-21 20:02:38,649 INFO L268 CegarLoopResult]: For program point myexitEXIT(lines 561 563) no Hoare annotation was computed. [2020-07-21 20:02:38,650 INFO L271 CegarLoopResult]: At program point L562(line 562) the Hoare annotation is: true [2020-07-21 20:02:38,650 INFO L268 CegarLoopResult]: For program point L578-1(lines 578 580) no Hoare annotation was computed. [2020-07-21 20:02:38,650 INFO L271 CegarLoopResult]: At program point dll_createENTRY(lines 574 591) the Hoare annotation is: true [2020-07-21 20:02:38,650 INFO L271 CegarLoopResult]: At program point L576-2(lines 576 589) the Hoare annotation is: true [2020-07-21 20:02:38,650 INFO L268 CegarLoopResult]: For program point L576-3(lines 576 589) no Hoare annotation was computed. [2020-07-21 20:02:38,651 INFO L268 CegarLoopResult]: For program point dll_createFINAL(lines 574 591) no Hoare annotation was computed. [2020-07-21 20:02:38,651 INFO L271 CegarLoopResult]: At program point L579(line 579) the Hoare annotation is: true [2020-07-21 20:02:38,652 INFO L268 CegarLoopResult]: For program point dll_createEXIT(lines 574 591) no Hoare annotation was computed. [2020-07-21 20:02:38,652 INFO L268 CegarLoopResult]: For program point L584(lines 584 586) no Hoare annotation was computed. [2020-07-21 20:02:38,655 INFO L268 CegarLoopResult]: For program point L584-2(lines 584 586) no Hoare annotation was computed. [2020-07-21 20:02:38,656 INFO L268 CegarLoopResult]: For program point L578(lines 578 580) no Hoare annotation was computed. [2020-07-21 20:02:38,657 INFO L268 CegarLoopResult]: For program point __bswap_32ENTRY(lines 63 67) no Hoare annotation was computed. [2020-07-21 20:02:38,657 INFO L268 CegarLoopResult]: For program point __bswap_32FINAL(lines 63 67) no Hoare annotation was computed. [2020-07-21 20:02:38,657 INFO L268 CegarLoopResult]: For program point __bswap_32EXIT(lines 63 67) no Hoare annotation was computed. [2020-07-21 20:02:38,657 INFO L268 CegarLoopResult]: For program point __bswap_64ENTRY(lines 68 72) no Hoare annotation was computed. [2020-07-21 20:02:38,657 INFO L268 CegarLoopResult]: For program point __bswap_64FINAL(lines 68 72) no Hoare annotation was computed. [2020-07-21 20:02:38,658 INFO L268 CegarLoopResult]: For program point __bswap_64EXIT(lines 68 72) no Hoare annotation was computed. [2020-07-21 20:02:38,658 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 20:02:38,658 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-07-21 20:02:38,658 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 20:02:38,658 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 20:02:38,658 INFO L271 CegarLoopResult]: At program point L600-2(lines 600 603) the Hoare annotation is: true [2020-07-21 20:02:38,659 INFO L268 CegarLoopResult]: For program point L600-3(lines 600 603) no Hoare annotation was computed. [2020-07-21 20:02:38,659 INFO L268 CegarLoopResult]: For program point dll_get_data_atFINAL(lines 599 605) no Hoare annotation was computed. [2020-07-21 20:02:38,660 INFO L271 CegarLoopResult]: At program point dll_get_data_atENTRY(lines 599 605) the Hoare annotation is: true [2020-07-21 20:02:38,660 INFO L268 CegarLoopResult]: For program point dll_get_data_atEXIT(lines 599 605) no Hoare annotation was computed. [2020-07-21 20:02:38,661 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 613 632) no Hoare annotation was computed. [2020-07-21 20:02:38,661 INFO L268 CegarLoopResult]: For program point L628(line 628) no Hoare annotation was computed. [2020-07-21 20:02:38,661 INFO L264 CegarLoopResult]: At program point L624(line 624) the Hoare annotation is: false [2020-07-21 20:02:38,661 INFO L268 CegarLoopResult]: For program point L624-1(line 624) no Hoare annotation was computed. [2020-07-21 20:02:38,661 INFO L268 CegarLoopResult]: For program point L624-2(lines 624 626) no Hoare annotation was computed. [2020-07-21 20:02:38,662 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 613 632) no Hoare annotation was computed. [2020-07-21 20:02:38,662 INFO L264 CegarLoopResult]: At program point L620(line 620) the Hoare annotation is: (<= 2 main_~len~0) [2020-07-21 20:02:38,663 INFO L268 CegarLoopResult]: For program point L622-2(lines 622 627) no Hoare annotation was computed. [2020-07-21 20:02:38,663 INFO L268 CegarLoopResult]: For program point L620-1(lines 618 621) no Hoare annotation was computed. [2020-07-21 20:02:38,664 INFO L264 CegarLoopResult]: At program point L622-3(lines 622 627) the Hoare annotation is: (and (<= 2 main_~len~0) (<= 1 main_~i~0)) [2020-07-21 20:02:38,664 INFO L264 CegarLoopResult]: At program point L622-4(lines 622 627) the Hoare annotation is: (and (<= 2 main_~len~0) (<= 1 main_~i~0)) [2020-07-21 20:02:38,664 INFO L264 CegarLoopResult]: At program point L616(line 616) the Hoare annotation is: (<= 2 main_~len~0) [2020-07-21 20:02:38,665 INFO L264 CegarLoopResult]: At program point L618-2(lines 618 621) the Hoare annotation is: (<= 2 main_~len~0) [2020-07-21 20:02:38,665 INFO L268 CegarLoopResult]: For program point L616-1(line 616) no Hoare annotation was computed. [2020-07-21 20:02:38,665 INFO L268 CegarLoopResult]: For program point L618-3(lines 618 621) no Hoare annotation was computed. [2020-07-21 20:02:38,665 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 630) no Hoare annotation was computed. [2020-07-21 20:02:38,666 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 613 632) the Hoare annotation is: true [2020-07-21 20:02:38,666 INFO L264 CegarLoopResult]: At program point L625(lines 613 632) the Hoare annotation is: false [2020-07-21 20:02:38,667 INFO L268 CegarLoopResult]: For program point dll_destroyEXIT(lines 592 598) no Hoare annotation was computed. [2020-07-21 20:02:38,668 INFO L271 CegarLoopResult]: At program point dll_destroyENTRY(lines 592 598) the Hoare annotation is: true [2020-07-21 20:02:38,674 INFO L271 CegarLoopResult]: At program point L593-2(lines 593 597) the Hoare annotation is: true [2020-07-21 20:02:38,675 INFO L268 CegarLoopResult]: For program point L593-3(lines 592 598) no Hoare annotation was computed. [2020-07-21 20:02:38,675 INFO L268 CegarLoopResult]: For program point node_createENTRY(lines 564 573) no Hoare annotation was computed. [2020-07-21 20:02:38,675 INFO L268 CegarLoopResult]: For program point node_createFINAL(lines 564 573) no Hoare annotation was computed. [2020-07-21 20:02:38,675 INFO L268 CegarLoopResult]: For program point L567(line 567) no Hoare annotation was computed. [2020-07-21 20:02:38,675 INFO L268 CegarLoopResult]: For program point L566(lines 566 568) no Hoare annotation was computed. [2020-07-21 20:02:38,676 INFO L268 CegarLoopResult]: For program point node_createEXIT(lines 564 573) no Hoare annotation was computed. [2020-07-21 20:02:38,676 INFO L268 CegarLoopResult]: For program point L566-1(lines 566 568) no Hoare annotation was computed. [2020-07-21 20:02:38,707 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 08:02:38 BoogieIcfgContainer [2020-07-21 20:02:38,708 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 20:02:38,713 INFO L168 Benchmark]: Toolchain (without parser) took 2956.49 ms. Allocated memory was 137.9 MB in the beginning and 235.9 MB in the end (delta: 98.0 MB). Free memory was 101.3 MB in the beginning and 171.6 MB in the end (delta: -70.3 MB). Peak memory consumption was 27.7 MB. Max. memory is 7.1 GB. [2020-07-21 20:02:38,715 INFO L168 Benchmark]: CDTParser took 0.51 ms. Allocated memory is still 137.9 MB. Free memory is still 120.5 MB. There was no memory consumed. Max. memory is 7.1 GB. [2020-07-21 20:02:38,717 INFO L168 Benchmark]: CACSL2BoogieTranslator took 792.98 ms. Allocated memory was 137.9 MB in the beginning and 204.5 MB in the end (delta: 66.6 MB). Free memory was 100.8 MB in the beginning and 169.5 MB in the end (delta: -68.7 MB). Peak memory consumption was 26.0 MB. Max. memory is 7.1 GB. [2020-07-21 20:02:38,727 INFO L168 Benchmark]: Boogie Preprocessor took 85.78 ms. Allocated memory is still 204.5 MB. Free memory was 169.5 MB in the beginning and 166.6 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. [2020-07-21 20:02:38,729 INFO L168 Benchmark]: RCFGBuilder took 971.95 ms. Allocated memory is still 204.5 MB. Free memory was 166.6 MB in the beginning and 117.0 MB in the end (delta: 49.6 MB). Peak memory consumption was 49.6 MB. Max. memory is 7.1 GB. [2020-07-21 20:02:38,731 INFO L168 Benchmark]: TraceAbstraction took 1097.18 ms. Allocated memory was 204.5 MB in the beginning and 235.9 MB in the end (delta: 31.5 MB). Free memory was 117.0 MB in the beginning and 171.6 MB in the end (delta: -54.6 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-07-21 20:02:38,739 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.51 ms. Allocated memory is still 137.9 MB. Free memory is still 120.5 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 792.98 ms. Allocated memory was 137.9 MB in the beginning and 204.5 MB in the end (delta: 66.6 MB). Free memory was 100.8 MB in the beginning and 169.5 MB in the end (delta: -68.7 MB). Peak memory consumption was 26.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 85.78 ms. Allocated memory is still 204.5 MB. Free memory was 169.5 MB in the beginning and 166.6 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 971.95 ms. Allocated memory is still 204.5 MB. Free memory was 166.6 MB in the beginning and 117.0 MB in the end (delta: 49.6 MB). Peak memory consumption was 49.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1097.18 ms. Allocated memory was 204.5 MB in the beginning and 235.9 MB in the end (delta: 31.5 MB). Free memory was 117.0 MB in the beginning and 171.6 MB in the end (delta: -54.6 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 630]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 562]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 593]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 618]: Loop Invariant Derived loop invariant: 2 <= len - InvariantResult [Line: 607]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 600]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 613]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 576]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 622]: Loop Invariant Derived loop invariant: 2 <= len && 1 <= i - StatisticsResult: Ultimate Automizer benchmark data CFG has 11 procedures, 64 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.7s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 41 SDtfs, 11 SDslu, 69 SDs, 0 SdLazy, 8 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 22 LocationsWithAnnotation, 28 PreInvPairs, 34 NumberOfFragments, 40 HoareAnnotationTreeSize, 28 FomulaSimplifications, 16 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 22 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 25 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 24 ConstructedInterpolants, 0 QuantifiedInterpolants, 816 SizeOfPredicates, 2 NumberOfNonLiveVariables, 71 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...