/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -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 0.2.0-7d8eed3 [2020-11-06 22:31:19,218 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-06 22:31:19,222 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-06 22:31:19,273 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-06 22:31:19,274 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-06 22:31:19,278 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-06 22:31:19,281 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-06 22:31:19,288 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-06 22:31:19,291 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-06 22:31:19,299 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-06 22:31:19,300 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-06 22:31:19,301 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-06 22:31:19,302 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-06 22:31:19,303 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-06 22:31:19,304 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-06 22:31:19,305 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-06 22:31:19,306 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-06 22:31:19,320 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-06 22:31:19,322 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-06 22:31:19,324 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-06 22:31:19,326 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-06 22:31:19,327 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-06 22:31:19,328 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-06 22:31:19,329 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-06 22:31:19,332 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-06 22:31:19,332 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-06 22:31:19,333 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-06 22:31:19,340 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-06 22:31:19,340 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-06 22:31:19,342 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-06 22:31:19,343 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-06 22:31:19,344 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-06 22:31:19,344 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-06 22:31:19,345 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-06 22:31:19,347 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-06 22:31:19,348 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-06 22:31:19,348 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-06 22:31:19,349 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-06 22:31:19,349 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-06 22:31:19,350 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-06 22:31:19,351 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-06 22:31:19,352 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 [2020-11-06 22:31:19,402 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-06 22:31:19,402 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-06 22:31:19,407 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-06 22:31:19,407 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-06 22:31:19,408 INFO L138 SettingsManager]: * Use SBE=true [2020-11-06 22:31:19,408 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-06 22:31:19,408 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-06 22:31:19,408 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-06 22:31:19,408 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-06 22:31:19,409 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-06 22:31:19,410 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-06 22:31:19,410 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-06 22:31:19,411 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-06 22:31:19,411 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-06 22:31:19,411 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-06 22:31:19,411 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-06 22:31:19,411 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-06 22:31:19,412 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-06 22:31:19,412 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-06 22:31:19,412 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-06 22:31:19,412 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-06 22:31:19,413 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-06 22:31:19,413 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-06 22:31:19,413 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-06 22:31:19,413 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-06 22:31:19,413 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-06 22:31:19,414 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-06 22:31:19,414 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-06 22:31:19,414 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-06 22:31:19,414 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-06 22:31:19,812 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-06 22:31:19,855 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-06 22:31:19,858 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-06 22:31:19,859 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-06 22:31:19,860 INFO L275 PluginConnector]: CDTParser initialized [2020-11-06 22:31:19,861 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-simple/dll2n_update_all_reverse.i [2020-11-06 22:31:19,940 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/08d06e42e/25b751f67e9347d0bd41ebd6d91578cf/FLAG49ba40db0 [2020-11-06 22:31:20,643 INFO L306 CDTParser]: Found 1 translation units. [2020-11-06 22:31:20,643 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/list-simple/dll2n_update_all_reverse.i [2020-11-06 22:31:20,660 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/08d06e42e/25b751f67e9347d0bd41ebd6d91578cf/FLAG49ba40db0 [2020-11-06 22:31:20,954 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/08d06e42e/25b751f67e9347d0bd41ebd6d91578cf [2020-11-06 22:31:20,957 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-06 22:31:20,964 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-06 22:31:20,966 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-06 22:31:20,966 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-06 22:31:20,970 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-06 22:31:20,971 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:31:20" (1/1) ... [2020-11-06 22:31:20,974 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@444c3a34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:31:20, skipping insertion in model container [2020-11-06 22:31:20,974 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:31:20" (1/1) ... [2020-11-06 22:31:20,982 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-06 22:31:21,020 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-06 22:31:21,349 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-06 22:31:21,362 INFO L203 MainTranslator]: Completed pre-run [2020-11-06 22:31:21,407 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-06 22:31:21,476 INFO L208 MainTranslator]: Completed translation [2020-11-06 22:31:21,477 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:31:21 WrapperNode [2020-11-06 22:31:21,477 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-06 22:31:21,479 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-06 22:31:21,479 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-06 22:31:21,479 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-06 22:31:21,491 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:31:21" (1/1) ... [2020-11-06 22:31:21,492 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:31:21" (1/1) ... [2020-11-06 22:31:21,508 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:31:21" (1/1) ... [2020-11-06 22:31:21,508 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:31:21" (1/1) ... [2020-11-06 22:31:21,527 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:31:21" (1/1) ... [2020-11-06 22:31:21,535 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:31:21" (1/1) ... [2020-11-06 22:31:21,539 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:31:21" (1/1) ... [2020-11-06 22:31:21,546 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-06 22:31:21,547 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-06 22:31:21,547 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-06 22:31:21,548 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-06 22:31:21,576 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:31:21" (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 [2020-11-06 22:31:21,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-06 22:31:21,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-06 22:31:21,675 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-06 22:31:21,675 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-11-06 22:31:21,675 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-11-06 22:31:21,675 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2020-11-06 22:31:21,675 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2020-11-06 22:31:21,676 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create [2020-11-06 22:31:21,676 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_destroy [2020-11-06 22:31:21,676 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_get_data_at [2020-11-06 22:31:21,676 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_update_at [2020-11-06 22:31:21,676 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-06 22:31:21,677 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-06 22:31:21,677 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-06 22:31:21,677 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-11-06 22:31:21,677 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-11-06 22:31:21,677 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-06 22:31:21,678 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-06 22:31:21,678 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-11-06 22:31:21,678 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-11-06 22:31:21,678 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-11-06 22:31:21,678 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-11-06 22:31:21,678 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-11-06 22:31:21,679 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-11-06 22:31:21,679 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-11-06 22:31:21,679 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-11-06 22:31:21,679 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-11-06 22:31:21,679 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-11-06 22:31:21,679 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-11-06 22:31:21,680 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-11-06 22:31:21,680 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-11-06 22:31:21,680 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-11-06 22:31:21,680 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-11-06 22:31:21,680 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-11-06 22:31:21,680 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-11-06 22:31:21,680 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-11-06 22:31:21,681 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-11-06 22:31:21,681 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-11-06 22:31:21,681 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-11-06 22:31:21,681 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-11-06 22:31:21,681 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-11-06 22:31:21,681 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-11-06 22:31:21,682 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-11-06 22:31:21,682 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-11-06 22:31:21,682 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-11-06 22:31:21,682 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-11-06 22:31:21,682 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-11-06 22:31:21,682 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-11-06 22:31:21,683 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-11-06 22:31:21,683 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-11-06 22:31:21,683 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-11-06 22:31:21,683 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-11-06 22:31:21,683 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-11-06 22:31:21,683 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-11-06 22:31:21,684 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-11-06 22:31:21,684 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-11-06 22:31:21,684 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-11-06 22:31:21,684 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-11-06 22:31:21,684 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-11-06 22:31:21,684 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-11-06 22:31:21,685 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-11-06 22:31:21,685 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-11-06 22:31:21,685 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-11-06 22:31:21,685 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-11-06 22:31:21,685 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-11-06 22:31:21,685 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-11-06 22:31:21,686 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-11-06 22:31:21,686 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-11-06 22:31:21,686 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-11-06 22:31:21,686 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-11-06 22:31:21,686 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-11-06 22:31:21,686 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-11-06 22:31:21,686 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-11-06 22:31:21,687 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-11-06 22:31:21,687 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-11-06 22:31:21,687 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-11-06 22:31:21,687 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-11-06 22:31:21,687 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-11-06 22:31:21,688 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-11-06 22:31:21,688 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-11-06 22:31:21,688 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-11-06 22:31:21,688 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-11-06 22:31:21,688 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-11-06 22:31:21,688 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-11-06 22:31:21,689 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-11-06 22:31:21,689 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-11-06 22:31:21,689 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-11-06 22:31:21,689 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-11-06 22:31:21,689 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-11-06 22:31:21,689 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-11-06 22:31:21,690 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-11-06 22:31:21,690 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-11-06 22:31:21,690 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-11-06 22:31:21,690 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-11-06 22:31:21,690 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-11-06 22:31:21,690 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-11-06 22:31:21,691 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-11-06 22:31:21,691 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-11-06 22:31:21,691 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-11-06 22:31:21,691 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-11-06 22:31:21,691 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-11-06 22:31:21,691 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-11-06 22:31:21,692 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-11-06 22:31:21,692 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-11-06 22:31:21,692 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-11-06 22:31:21,692 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-11-06 22:31:21,692 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-11-06 22:31:21,692 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-11-06 22:31:21,692 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-11-06 22:31:21,693 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-11-06 22:31:21,693 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-11-06 22:31:21,693 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-11-06 22:31:21,693 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-11-06 22:31:21,693 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-11-06 22:31:21,693 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-11-06 22:31:21,694 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-11-06 22:31:21,694 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-11-06 22:31:21,694 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-11-06 22:31:21,694 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-11-06 22:31:21,694 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-11-06 22:31:21,694 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-11-06 22:31:21,694 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-11-06 22:31:21,695 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2020-11-06 22:31:21,695 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2020-11-06 22:31:21,695 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-06 22:31:21,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-06 22:31:21,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-06 22:31:21,695 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create [2020-11-06 22:31:21,696 INFO L130 BoogieDeclarations]: Found specification of procedure dll_destroy [2020-11-06 22:31:21,696 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-06 22:31:21,696 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-06 22:31:21,696 INFO L130 BoogieDeclarations]: Found specification of procedure dll_get_data_at [2020-11-06 22:31:21,696 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-06 22:31:21,696 INFO L130 BoogieDeclarations]: Found specification of procedure dll_update_at [2020-11-06 22:31:21,697 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-06 22:31:21,697 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-06 22:31:21,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-06 22:31:21,697 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-06 22:31:22,184 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2020-11-06 22:31:22,374 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-06 22:31:22,374 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-11-06 22:31:22,376 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:31:22 BoogieIcfgContainer [2020-11-06 22:31:22,376 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-06 22:31:22,378 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-06 22:31:22,378 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-06 22:31:22,382 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-06 22:31:22,382 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:31:20" (1/3) ... [2020-11-06 22:31:22,383 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@dab3114 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:31:22, skipping insertion in model container [2020-11-06 22:31:22,383 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:31:21" (2/3) ... [2020-11-06 22:31:22,384 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@dab3114 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:31:22, skipping insertion in model container [2020-11-06 22:31:22,384 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:31:22" (3/3) ... [2020-11-06 22:31:22,386 INFO L111 eAbstractionObserver]: Analyzing ICFG dll2n_update_all_reverse.i [2020-11-06 22:31:22,402 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-06 22:31:22,406 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-06 22:31:22,419 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-06 22:31:22,447 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-06 22:31:22,448 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-06 22:31:22,448 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-06 22:31:22,448 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-06 22:31:22,448 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-06 22:31:22,448 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-06 22:31:22,449 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-06 22:31:22,449 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-06 22:31:22,467 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states. [2020-11-06 22:31:22,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-11-06 22:31:22,475 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:31:22,476 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, 1, 1] [2020-11-06 22:31:22,476 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:31:22,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:31:22,483 INFO L82 PathProgramCache]: Analyzing trace with hash 448687099, now seen corresponding path program 1 times [2020-11-06 22:31:22,493 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:31:22,493 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098148221] [2020-11-06 22:31:22,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:31:22,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:31:22,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:31:22,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:31:22,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 22:31:22,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:31:22,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-11-06 22:31:22,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:31:22,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 22:31:22,978 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098148221] [2020-11-06 22:31:22,979 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 22:31:22,979 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-06 22:31:22,980 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753604551] [2020-11-06 22:31:22,986 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-06 22:31:22,987 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:31:23,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-06 22:31:23,002 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-06 22:31:23,004 INFO L87 Difference]: Start difference. First operand 56 states. Second operand 7 states. [2020-11-06 22:31:23,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:31:23,719 INFO L93 Difference]: Finished difference Result 105 states and 141 transitions. [2020-11-06 22:31:23,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-06 22:31:23,721 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 27 [2020-11-06 22:31:23,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:31:23,729 INFO L225 Difference]: With dead ends: 105 [2020-11-06 22:31:23,730 INFO L226 Difference]: Without dead ends: 45 [2020-11-06 22:31:23,733 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-11-06 22:31:23,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-11-06 22:31:23,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 41. [2020-11-06 22:31:23,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-11-06 22:31:23,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 46 transitions. [2020-11-06 22:31:23,779 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 46 transitions. Word has length 27 [2020-11-06 22:31:23,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:31:23,779 INFO L481 AbstractCegarLoop]: Abstraction has 41 states and 46 transitions. [2020-11-06 22:31:23,779 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-06 22:31:23,780 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 46 transitions. [2020-11-06 22:31:23,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-11-06 22:31:23,781 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:31:23,781 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, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:31:23,782 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-06 22:31:23,782 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:31:23,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:31:23,783 INFO L82 PathProgramCache]: Analyzing trace with hash -1523601385, now seen corresponding path program 1 times [2020-11-06 22:31:23,783 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:31:23,783 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595315633] [2020-11-06 22:31:23,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:31:23,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:31:23,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:31:23,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:31:24,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 22:31:24,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:31:24,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-11-06 22:31:24,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:31:24,127 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 22:31:24,127 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595315633] [2020-11-06 22:31:24,127 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 22:31:24,128 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-06 22:31:24,128 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325419669] [2020-11-06 22:31:24,129 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-06 22:31:24,129 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:31:24,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-06 22:31:24,130 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-06 22:31:24,131 INFO L87 Difference]: Start difference. First operand 41 states and 46 transitions. Second operand 5 states. [2020-11-06 22:31:24,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:31:24,406 INFO L93 Difference]: Finished difference Result 77 states and 88 transitions. [2020-11-06 22:31:24,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-06 22:31:24,407 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2020-11-06 22:31:24,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:31:24,408 INFO L225 Difference]: With dead ends: 77 [2020-11-06 22:31:24,408 INFO L226 Difference]: Without dead ends: 45 [2020-11-06 22:31:24,410 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-06 22:31:24,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-11-06 22:31:24,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 44. [2020-11-06 22:31:24,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2020-11-06 22:31:24,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 49 transitions. [2020-11-06 22:31:24,419 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 49 transitions. Word has length 32 [2020-11-06 22:31:24,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:31:24,420 INFO L481 AbstractCegarLoop]: Abstraction has 44 states and 49 transitions. [2020-11-06 22:31:24,420 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-06 22:31:24,420 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 49 transitions. [2020-11-06 22:31:24,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-11-06 22:31:24,421 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:31:24,422 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, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:31:24,422 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-06 22:31:24,422 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:31:24,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:31:24,423 INFO L82 PathProgramCache]: Analyzing trace with hash -1100899559, now seen corresponding path program 1 times [2020-11-06 22:31:24,423 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:31:24,423 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599090450] [2020-11-06 22:31:24,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:31:24,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:31:24,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:31:24,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:31:24,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 22:31:24,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:31:24,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-11-06 22:31:24,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:31:24,623 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 22:31:24,624 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599090450] [2020-11-06 22:31:24,625 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1244312215] [2020-11-06 22:31:24,625 INFO L95 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 [2020-11-06 22:31:24,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:31:24,803 INFO L263 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-06 22:31:24,810 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:31:24,895 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 22:31:24,895 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-06 22:31:24,895 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6] total 10 [2020-11-06 22:31:24,896 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762923735] [2020-11-06 22:31:24,896 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-06 22:31:24,897 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:31:24,897 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-06 22:31:24,897 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-11-06 22:31:24,898 INFO L87 Difference]: Start difference. First operand 44 states and 49 transitions. Second operand 10 states. [2020-11-06 22:31:25,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:31:25,208 INFO L93 Difference]: Finished difference Result 77 states and 87 transitions. [2020-11-06 22:31:25,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-06 22:31:25,209 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 32 [2020-11-06 22:31:25,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:31:25,210 INFO L225 Difference]: With dead ends: 77 [2020-11-06 22:31:25,210 INFO L226 Difference]: Without dead ends: 50 [2020-11-06 22:31:25,211 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2020-11-06 22:31:25,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-11-06 22:31:25,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 46. [2020-11-06 22:31:25,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-11-06 22:31:25,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 51 transitions. [2020-11-06 22:31:25,219 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 51 transitions. Word has length 32 [2020-11-06 22:31:25,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:31:25,220 INFO L481 AbstractCegarLoop]: Abstraction has 46 states and 51 transitions. [2020-11-06 22:31:25,220 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-06 22:31:25,220 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 51 transitions. [2020-11-06 22:31:25,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-11-06 22:31:25,221 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:31:25,221 INFO L422 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] [2020-11-06 22:31:25,436 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-11-06 22:31:25,437 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:31:25,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:31:25,438 INFO L82 PathProgramCache]: Analyzing trace with hash 912475065, now seen corresponding path program 1 times [2020-11-06 22:31:25,438 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:31:25,439 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800306956] [2020-11-06 22:31:25,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:31:25,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:31:25,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:31:25,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:31:25,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 22:31:25,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:31:25,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-11-06 22:31:25,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:31:25,595 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-11-06 22:31:25,598 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800306956] [2020-11-06 22:31:25,598 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 22:31:25,598 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-06 22:31:25,598 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742179367] [2020-11-06 22:31:25,599 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-06 22:31:25,599 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:31:25,600 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-06 22:31:25,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-06 22:31:25,602 INFO L87 Difference]: Start difference. First operand 46 states and 51 transitions. Second operand 6 states. [2020-11-06 22:31:25,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:31:25,845 INFO L93 Difference]: Finished difference Result 51 states and 58 transitions. [2020-11-06 22:31:25,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-06 22:31:25,846 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 37 [2020-11-06 22:31:25,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:31:25,847 INFO L225 Difference]: With dead ends: 51 [2020-11-06 22:31:25,847 INFO L226 Difference]: Without dead ends: 0 [2020-11-06 22:31:25,848 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-11-06 22:31:25,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-06 22:31:25,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-06 22:31:25,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-06 22:31:25,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-06 22:31:25,849 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 37 [2020-11-06 22:31:25,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:31:25,849 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-06 22:31:25,849 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-06 22:31:25,849 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-06 22:31:25,849 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-06 22:31:25,850 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-06 22:31:25,852 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-06 22:31:26,124 INFO L266 CegarLoopResult]: For program point reach_errorEXIT(line 12) no Hoare annotation was computed. [2020-11-06 22:31:26,124 INFO L269 CegarLoopResult]: At program point reach_errorENTRY(line 12) the Hoare annotation is: true [2020-11-06 22:31:26,124 INFO L266 CegarLoopResult]: For program point L12-1(line 12) no Hoare annotation was computed. [2020-11-06 22:31:26,124 INFO L266 CegarLoopResult]: For program point L12-2(line 12) no Hoare annotation was computed. [2020-11-06 22:31:26,124 INFO L266 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-11-06 22:31:26,125 INFO L262 CegarLoopResult]: At program point dll_update_atENTRY(lines 617 623) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|)) [2020-11-06 22:31:26,125 INFO L266 CegarLoopResult]: For program point dll_update_atEXIT(lines 617 623) no Hoare annotation was computed. [2020-11-06 22:31:26,125 INFO L262 CegarLoopResult]: At program point L618-2(lines 618 621) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|)) [2020-11-06 22:31:26,125 INFO L266 CegarLoopResult]: For program point L618-3(lines 618 621) no Hoare annotation was computed. [2020-11-06 22:31:26,125 INFO L266 CegarLoopResult]: For program point dll_update_atFINAL(lines 617 623) no Hoare annotation was computed. [2020-11-06 22:31:26,125 INFO L266 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-11-06 22:31:26,125 INFO L262 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |old(#NULL.base)| |#NULL.base|) (= |old(#t~string1.offset)| |#t~string1.offset|) (= |#t~string0.offset| |old(#t~string0.offset)|) (= |old(#length)| |#length|) (= |#t~string1.base| |old(#t~string1.base)|) (= |#t~string0.base| |old(#t~string0.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2020-11-06 22:31:26,126 INFO L266 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-11-06 22:31:26,126 INFO L269 CegarLoopResult]: At program point myexitENTRY(lines 572 574) the Hoare annotation is: true [2020-11-06 22:31:26,126 INFO L269 CegarLoopResult]: At program point L573(line 573) the Hoare annotation is: true [2020-11-06 22:31:26,128 INFO L266 CegarLoopResult]: For program point myexitEXIT(lines 572 574) no Hoare annotation was computed. [2020-11-06 22:31:26,128 INFO L262 CegarLoopResult]: At program point dll_createENTRY(lines 585 602) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#valid)| |#valid|)) [2020-11-06 22:31:26,128 INFO L266 CegarLoopResult]: For program point dll_createFINAL(lines 585 602) no Hoare annotation was computed. [2020-11-06 22:31:26,128 INFO L266 CegarLoopResult]: For program point L595(lines 595 597) no Hoare annotation was computed. [2020-11-06 22:31:26,128 INFO L266 CegarLoopResult]: For program point L595-2(lines 595 597) no Hoare annotation was computed. [2020-11-06 22:31:26,128 INFO L266 CegarLoopResult]: For program point L589(lines 589 591) no Hoare annotation was computed. [2020-11-06 22:31:26,129 INFO L266 CegarLoopResult]: For program point L589-1(lines 589 591) no Hoare annotation was computed. [2020-11-06 22:31:26,129 INFO L269 CegarLoopResult]: At program point L587-2(lines 587 600) the Hoare annotation is: true [2020-11-06 22:31:26,129 INFO L266 CegarLoopResult]: For program point L587-3(lines 587 600) no Hoare annotation was computed. [2020-11-06 22:31:26,129 INFO L266 CegarLoopResult]: For program point dll_createEXIT(lines 585 602) no Hoare annotation was computed. [2020-11-06 22:31:26,130 INFO L269 CegarLoopResult]: At program point L590(line 590) the Hoare annotation is: true [2020-11-06 22:31:26,130 INFO L266 CegarLoopResult]: For program point __bswap_32ENTRY(lines 74 78) no Hoare annotation was computed. [2020-11-06 22:31:26,130 INFO L266 CegarLoopResult]: For program point __bswap_32FINAL(lines 74 78) no Hoare annotation was computed. [2020-11-06 22:31:26,130 INFO L266 CegarLoopResult]: For program point __bswap_32EXIT(lines 74 78) no Hoare annotation was computed. [2020-11-06 22:31:26,130 INFO L266 CegarLoopResult]: For program point __bswap_64ENTRY(lines 79 83) no Hoare annotation was computed. [2020-11-06 22:31:26,130 INFO L266 CegarLoopResult]: For program point __bswap_64FINAL(lines 79 83) no Hoare annotation was computed. [2020-11-06 22:31:26,130 INFO L266 CegarLoopResult]: For program point __bswap_64EXIT(lines 79 83) no Hoare annotation was computed. [2020-11-06 22:31:26,130 INFO L266 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-06 22:31:26,131 INFO L269 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-11-06 22:31:26,131 INFO L269 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-11-06 22:31:26,131 INFO L266 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-06 22:31:26,131 INFO L269 CegarLoopResult]: At program point L611-2(lines 611 614) the Hoare annotation is: true [2020-11-06 22:31:26,132 INFO L266 CegarLoopResult]: For program point L611-3(lines 611 614) no Hoare annotation was computed. [2020-11-06 22:31:26,132 INFO L266 CegarLoopResult]: For program point dll_get_data_atFINAL(lines 610 616) no Hoare annotation was computed. [2020-11-06 22:31:26,134 INFO L269 CegarLoopResult]: At program point dll_get_data_atENTRY(lines 610 616) the Hoare annotation is: true [2020-11-06 22:31:26,134 INFO L266 CegarLoopResult]: For program point dll_get_data_atEXIT(lines 610 616) no Hoare annotation was computed. [2020-11-06 22:31:26,134 INFO L262 CegarLoopResult]: At program point L636(lines 624 643) the Hoare annotation is: false [2020-11-06 22:31:26,135 INFO L266 CegarLoopResult]: For program point mainEXIT(lines 624 643) no Hoare annotation was computed. [2020-11-06 22:31:26,135 INFO L266 CegarLoopResult]: For program point mainFINAL(lines 624 643) no Hoare annotation was computed. [2020-11-06 22:31:26,135 INFO L266 CegarLoopResult]: For program point L641(line 641) no Hoare annotation was computed. [2020-11-06 22:31:26,135 INFO L266 CegarLoopResult]: For program point L639(line 639) no Hoare annotation was computed. [2020-11-06 22:31:26,135 INFO L262 CegarLoopResult]: At program point mainENTRY(lines 624 643) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#valid)| |#valid|)) [2020-11-06 22:31:26,135 INFO L262 CegarLoopResult]: At program point L635(line 635) the Hoare annotation is: false [2020-11-06 22:31:26,135 INFO L266 CegarLoopResult]: For program point L635-1(line 635) no Hoare annotation was computed. [2020-11-06 22:31:26,135 INFO L266 CegarLoopResult]: For program point L635-2(lines 635 637) no Hoare annotation was computed. [2020-11-06 22:31:26,136 INFO L262 CegarLoopResult]: At program point L631(line 631) the Hoare annotation is: (= main_~len~0 2) [2020-11-06 22:31:26,136 INFO L266 CegarLoopResult]: For program point L633-2(lines 633 638) no Hoare annotation was computed. [2020-11-06 22:31:26,136 INFO L266 CegarLoopResult]: For program point L631-1(lines 629 632) no Hoare annotation was computed. [2020-11-06 22:31:26,136 INFO L262 CegarLoopResult]: At program point L633-3(lines 633 638) the Hoare annotation is: (and (= main_~len~0 2) (<= 1 main_~i~0)) [2020-11-06 22:31:26,136 INFO L262 CegarLoopResult]: At program point L633-4(lines 633 638) the Hoare annotation is: (= main_~len~0 2) [2020-11-06 22:31:26,136 INFO L262 CegarLoopResult]: At program point L627(line 627) the Hoare annotation is: (and (= main_~len~0 2) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#valid)| |#valid|)) [2020-11-06 22:31:26,136 INFO L262 CegarLoopResult]: At program point L629-2(lines 629 632) the Hoare annotation is: (= main_~len~0 2) [2020-11-06 22:31:26,137 INFO L266 CegarLoopResult]: For program point L627-1(line 627) no Hoare annotation was computed. [2020-11-06 22:31:26,137 INFO L266 CegarLoopResult]: For program point L629-3(lines 629 632) no Hoare annotation was computed. [2020-11-06 22:31:26,137 INFO L266 CegarLoopResult]: For program point dll_destroyEXIT(lines 603 609) no Hoare annotation was computed. [2020-11-06 22:31:26,137 INFO L262 CegarLoopResult]: At program point dll_destroyENTRY(lines 603 609) the Hoare annotation is: (= |old(#valid)| |#valid|) [2020-11-06 22:31:26,142 INFO L269 CegarLoopResult]: At program point L604-2(lines 604 608) the Hoare annotation is: true [2020-11-06 22:31:26,142 INFO L266 CegarLoopResult]: For program point L604-3(lines 603 609) no Hoare annotation was computed. [2020-11-06 22:31:26,143 INFO L266 CegarLoopResult]: For program point L577(lines 577 579) no Hoare annotation was computed. [2020-11-06 22:31:26,143 INFO L266 CegarLoopResult]: For program point L577-1(lines 577 579) no Hoare annotation was computed. [2020-11-06 22:31:26,143 INFO L266 CegarLoopResult]: For program point node_createENTRY(lines 575 584) no Hoare annotation was computed. [2020-11-06 22:31:26,143 INFO L266 CegarLoopResult]: For program point node_createFINAL(lines 575 584) no Hoare annotation was computed. [2020-11-06 22:31:26,143 INFO L266 CegarLoopResult]: For program point node_createEXIT(lines 575 584) no Hoare annotation was computed. [2020-11-06 22:31:26,143 INFO L266 CegarLoopResult]: For program point L578(line 578) no Hoare annotation was computed. [2020-11-06 22:31:26,158 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-11-06 22:31:26,159 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-11-06 22:31:26,159 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-11-06 22:31:26,159 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-11-06 22:31:26,159 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-11-06 22:31:26,160 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-11-06 22:31:26,160 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-06 22:31:26,160 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-06 22:31:26,160 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-11-06 22:31:26,160 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-11-06 22:31:26,161 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-11-06 22:31:26,161 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-11-06 22:31:26,161 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-11-06 22:31:26,161 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-11-06 22:31:26,161 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-11-06 22:31:26,162 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-11-06 22:31:26,162 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-06 22:31:26,162 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-06 22:31:26,162 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-11-06 22:31:26,162 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-11-06 22:31:26,167 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:31:26 BoogieIcfgContainer [2020-11-06 22:31:26,167 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-06 22:31:26,170 INFO L168 Benchmark]: Toolchain (without parser) took 5209.23 ms. Allocated memory was 154.1 MB in the beginning and 200.3 MB in the end (delta: 46.1 MB). Free memory was 128.0 MB in the beginning and 128.5 MB in the end (delta: -473.8 kB). Peak memory consumption was 47.2 MB. Max. memory is 8.0 GB. [2020-11-06 22:31:26,172 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 154.1 MB. Free memory is still 126.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-06 22:31:26,174 INFO L168 Benchmark]: CACSL2BoogieTranslator took 511.77 ms. Allocated memory is still 154.1 MB. Free memory was 127.4 MB in the beginning and 104.6 MB in the end (delta: 22.9 MB). Peak memory consumption was 23.1 MB. Max. memory is 8.0 GB. [2020-11-06 22:31:26,175 INFO L168 Benchmark]: Boogie Preprocessor took 68.01 ms. Allocated memory is still 154.1 MB. Free memory was 104.6 MB in the beginning and 101.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-11-06 22:31:26,178 INFO L168 Benchmark]: RCFGBuilder took 829.10 ms. Allocated memory is still 154.1 MB. Free memory was 101.8 MB in the beginning and 89.3 MB in the end (delta: 12.5 MB). Peak memory consumption was 13.0 MB. Max. memory is 8.0 GB. [2020-11-06 22:31:26,183 INFO L168 Benchmark]: TraceAbstraction took 3789.24 ms. Allocated memory was 154.1 MB in the beginning and 200.3 MB in the end (delta: 46.1 MB). Free memory was 88.8 MB in the beginning and 128.5 MB in the end (delta: -39.7 MB). Peak memory consumption was 8.0 MB. Max. memory is 8.0 GB. [2020-11-06 22:31:26,193 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 154.1 MB. Free memory is still 126.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 511.77 ms. Allocated memory is still 154.1 MB. Free memory was 127.4 MB in the beginning and 104.6 MB in the end (delta: 22.9 MB). Peak memory consumption was 23.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 68.01 ms. Allocated memory is still 154.1 MB. Free memory was 104.6 MB in the beginning and 101.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 829.10 ms. Allocated memory is still 154.1 MB. Free memory was 101.8 MB in the beginning and 89.3 MB in the end (delta: 12.5 MB). Peak memory consumption was 13.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 3789.24 ms. Allocated memory was 154.1 MB in the beginning and 200.3 MB in the end (delta: 46.1 MB). Free memory was 88.8 MB in the beginning and 128.5 MB in the end (delta: -39.7 MB). Peak memory consumption was 8.0 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 12]: 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: 573]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 604]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 629]: Loop Invariant Derived loop invariant: len == 2 - InvariantResult [Line: 618]: Loop Invariant [2020-11-06 22:31:26,207 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-11-06 22:31:26,207 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-11-06 22:31:26,207 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-11-06 22:31:26,207 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-11-06 22:31:26,208 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-11-06 22:31:26,208 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-11-06 22:31:26,208 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-06 22:31:26,208 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-06 22:31:26,208 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-11-06 22:31:26,208 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-11-06 22:31:26,210 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-11-06 22:31:26,210 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-11-06 22:31:26,210 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-11-06 22:31:26,210 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-11-06 22:31:26,210 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-11-06 22:31:26,210 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-11-06 22:31:26,211 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-06 22:31:26,211 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-06 22:31:26,211 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-11-06 22:31:26,211 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ Derived loop invariant: (#memory_$Pointer$ == \old(#memory_$Pointer$) && unknown-#memory_int-unknown == \old(unknown-#memory_int-unknown)) && #memory_$Pointer$ == \old(#memory_$Pointer$) - InvariantResult [Line: 587]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 624]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 611]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 633]: Loop Invariant Derived loop invariant: len == 2 && 1 <= i - StatisticsResult: Ultimate Automizer benchmark data CFG has 12 procedures, 69 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.4s, OverallIterations: 4, TraceHistogramMax: 2, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 140 SDtfs, 162 SDslu, 279 SDs, 0 SdLazy, 398 SolverSat, 62 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 88 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=56occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 9 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 23 LocationsWithAnnotation, 44 PreInvPairs, 55 NumberOfFragments, 127 HoareAnnotationTreeSize, 44 FomulaSimplifications, 16 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 23 FomulaSimplificationsInter, 208 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 160 NumberOfCodeBlocks, 160 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 155 ConstructedInterpolants, 0 QuantifiedInterpolants, 12275 SizeOfPredicates, 2 NumberOfNonLiveVariables, 173 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 5 InterpolantComputations, 3 PerfectInterpolantSequences, 8/10 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...