/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/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/list-ext3-properties/sll_length_check-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-07 00:57:27,741 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-07 00:57:27,744 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-07 00:57:27,793 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-07 00:57:27,794 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-07 00:57:27,798 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-07 00:57:27,801 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-07 00:57:27,809 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-07 00:57:27,812 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-07 00:57:27,818 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-07 00:57:27,819 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-07 00:57:27,821 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-07 00:57:27,821 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-07 00:57:27,824 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-07 00:57:27,826 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-07 00:57:27,828 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-07 00:57:27,829 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-07 00:57:27,834 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-07 00:57:27,859 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-07 00:57:27,863 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-07 00:57:27,868 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-07 00:57:27,870 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-07 00:57:27,872 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-07 00:57:27,874 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-07 00:57:27,883 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-07 00:57:27,884 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-07 00:57:27,886 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-07 00:57:27,888 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-07 00:57:27,889 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-07 00:57:27,890 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-07 00:57:27,890 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-07 00:57:27,891 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-07 00:57:27,893 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-07 00:57:27,894 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-07 00:57:27,895 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-07 00:57:27,895 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-07 00:57:27,896 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-07 00:57:27,896 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-07 00:57:27,896 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-07 00:57:27,897 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-07 00:57:27,898 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-07 00:57:27,899 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-11-07 00:57:27,925 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-07 00:57:27,926 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-07 00:57:27,930 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-07 00:57:27,931 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-07 00:57:27,931 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-07 00:57:27,931 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-07 00:57:27,931 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-07 00:57:27,932 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-07 00:57:27,932 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-07 00:57:27,932 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-07 00:57:27,933 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-07 00:57:27,933 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-07 00:57:27,934 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-07 00:57:27,934 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-07 00:57:27,935 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-07 00:57:27,936 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-11-07 00:57:27,936 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-07 00:57:27,936 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-07 00:57:27,936 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 00:57:27,936 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-07 00:57:27,937 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-11-07 00:57:27,937 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-07 00:57:27,937 INFO L138 SettingsManager]: * Use separate solver for trace checks=false 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-07 00:57:28,311 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-07 00:57:28,367 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-07 00:57:28,370 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-07 00:57:28,372 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-07 00:57:28,372 INFO L275 PluginConnector]: CDTParser initialized [2020-11-07 00:57:28,373 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-ext3-properties/sll_length_check-1.i [2020-11-07 00:57:28,455 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b55b50f5/f4a35d754d4b41c895eb5db64fc9b0e2/FLAG7b53c1dd9 [2020-11-07 00:57:29,219 INFO L306 CDTParser]: Found 1 translation units. [2020-11-07 00:57:29,220 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/list-ext3-properties/sll_length_check-1.i [2020-11-07 00:57:29,242 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b55b50f5/f4a35d754d4b41c895eb5db64fc9b0e2/FLAG7b53c1dd9 [2020-11-07 00:57:29,499 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b55b50f5/f4a35d754d4b41c895eb5db64fc9b0e2 [2020-11-07 00:57:29,503 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-07 00:57:29,510 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-07 00:57:29,512 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-07 00:57:29,512 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-07 00:57:29,516 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-07 00:57:29,517 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:57:29" (1/1) ... [2020-11-07 00:57:29,520 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7825c0cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:57:29, skipping insertion in model container [2020-11-07 00:57:29,521 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:57:29" (1/1) ... [2020-11-07 00:57:29,529 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-07 00:57:29,566 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-07 00:57:29,907 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 00:57:29,918 INFO L203 MainTranslator]: Completed pre-run [2020-11-07 00:57:29,965 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 00:57:30,042 INFO L208 MainTranslator]: Completed translation [2020-11-07 00:57:30,043 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:57:30 WrapperNode [2020-11-07 00:57:30,043 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-07 00:57:30,044 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-07 00:57:30,044 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-07 00:57:30,045 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-07 00:57:30,058 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:57:30" (1/1) ... [2020-11-07 00:57:30,058 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:57:30" (1/1) ... [2020-11-07 00:57:30,087 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:57:30" (1/1) ... [2020-11-07 00:57:30,087 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:57:30" (1/1) ... [2020-11-07 00:57:30,105 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:57:30" (1/1) ... [2020-11-07 00:57:30,111 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:57:30" (1/1) ... [2020-11-07 00:57:30,115 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:57:30" (1/1) ... [2020-11-07 00:57:30,122 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-07 00:57:30,123 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-07 00:57:30,123 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-07 00:57:30,123 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-07 00:57:30,124 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:57:30" (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 [2020-11-07 00:57:30,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-07 00:57:30,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-07 00:57:30,208 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-07 00:57:30,208 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-11-07 00:57:30,208 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-11-07 00:57:30,208 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2020-11-07 00:57:30,208 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_create [2020-11-07 00:57:30,209 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_length [2020-11-07 00:57:30,209 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_destroy [2020-11-07 00:57:30,209 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-07 00:57:30,209 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-07 00:57:30,209 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-07 00:57:30,209 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-11-07 00:57:30,210 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-11-07 00:57:30,210 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-07 00:57:30,210 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-07 00:57:30,210 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-07 00:57:30,210 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-11-07 00:57:30,210 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-11-07 00:57:30,210 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-11-07 00:57:30,211 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-11-07 00:57:30,211 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-11-07 00:57:30,211 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-11-07 00:57:30,211 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-11-07 00:57:30,211 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-11-07 00:57:30,211 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-11-07 00:57:30,212 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-11-07 00:57:30,212 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-11-07 00:57:30,212 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-11-07 00:57:30,212 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-11-07 00:57:30,212 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-11-07 00:57:30,212 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-11-07 00:57:30,213 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-11-07 00:57:30,213 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-11-07 00:57:30,213 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-11-07 00:57:30,213 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-11-07 00:57:30,213 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-11-07 00:57:30,213 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-11-07 00:57:30,214 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-11-07 00:57:30,214 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-11-07 00:57:30,214 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-11-07 00:57:30,214 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-11-07 00:57:30,214 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-11-07 00:57:30,214 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-11-07 00:57:30,214 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-11-07 00:57:30,215 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-11-07 00:57:30,215 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-11-07 00:57:30,215 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-11-07 00:57:30,215 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-11-07 00:57:30,215 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-11-07 00:57:30,215 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-11-07 00:57:30,215 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-11-07 00:57:30,216 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-11-07 00:57:30,216 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-11-07 00:57:30,216 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-11-07 00:57:30,216 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-11-07 00:57:30,216 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-11-07 00:57:30,216 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-11-07 00:57:30,216 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-11-07 00:57:30,217 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-11-07 00:57:30,217 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-11-07 00:57:30,217 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-11-07 00:57:30,217 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-11-07 00:57:30,217 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-11-07 00:57:30,218 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-11-07 00:57:30,218 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-11-07 00:57:30,218 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-11-07 00:57:30,218 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-11-07 00:57:30,218 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-11-07 00:57:30,218 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-11-07 00:57:30,218 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-11-07 00:57:30,219 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-11-07 00:57:30,219 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-11-07 00:57:30,219 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-11-07 00:57:30,219 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-11-07 00:57:30,219 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-11-07 00:57:30,219 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-11-07 00:57:30,220 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-11-07 00:57:30,220 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-11-07 00:57:30,220 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-11-07 00:57:30,220 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-11-07 00:57:30,220 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-11-07 00:57:30,220 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-11-07 00:57:30,221 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-11-07 00:57:30,221 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-11-07 00:57:30,221 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-11-07 00:57:30,221 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-11-07 00:57:30,221 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-11-07 00:57:30,221 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-11-07 00:57:30,222 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-11-07 00:57:30,222 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-11-07 00:57:30,222 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-11-07 00:57:30,222 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-11-07 00:57:30,222 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-11-07 00:57:30,222 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-11-07 00:57:30,223 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-11-07 00:57:30,223 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-11-07 00:57:30,223 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-11-07 00:57:30,223 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-11-07 00:57:30,223 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-11-07 00:57:30,223 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-11-07 00:57:30,224 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-11-07 00:57:30,224 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-11-07 00:57:30,224 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-11-07 00:57:30,224 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-11-07 00:57:30,224 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-11-07 00:57:30,224 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-11-07 00:57:30,225 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-11-07 00:57:30,225 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-11-07 00:57:30,225 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-11-07 00:57:30,225 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-11-07 00:57:30,225 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-11-07 00:57:30,225 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-11-07 00:57:30,225 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-11-07 00:57:30,226 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-11-07 00:57:30,226 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-11-07 00:57:30,226 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-11-07 00:57:30,226 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-11-07 00:57:30,226 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-11-07 00:57:30,226 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-11-07 00:57:30,227 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-11-07 00:57:30,227 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2020-11-07 00:57:30,227 INFO L130 BoogieDeclarations]: Found specification of procedure sll_create [2020-11-07 00:57:30,227 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-07 00:57:30,227 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-07 00:57:30,227 INFO L130 BoogieDeclarations]: Found specification of procedure sll_length [2020-11-07 00:57:30,227 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-07 00:57:30,228 INFO L130 BoogieDeclarations]: Found specification of procedure sll_destroy [2020-11-07 00:57:30,228 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-07 00:57:30,228 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-07 00:57:30,228 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-07 00:57:30,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-07 00:57:30,228 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-07 00:57:30,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-07 00:57:30,229 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-07 00:57:30,662 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2020-11-07 00:57:30,842 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-07 00:57:30,842 INFO L298 CfgBuilder]: Removed 4 assume(true) statements. [2020-11-07 00:57:30,844 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:57:30 BoogieIcfgContainer [2020-11-07 00:57:30,844 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-07 00:57:30,846 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-07 00:57:30,846 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-07 00:57:30,850 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-07 00:57:30,851 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:57:29" (1/3) ... [2020-11-07 00:57:30,852 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45cb270a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:57:30, skipping insertion in model container [2020-11-07 00:57:30,852 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:57:30" (2/3) ... [2020-11-07 00:57:30,852 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45cb270a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:57:30, skipping insertion in model container [2020-11-07 00:57:30,852 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:57:30" (3/3) ... [2020-11-07 00:57:30,854 INFO L111 eAbstractionObserver]: Analyzing ICFG sll_length_check-1.i [2020-11-07 00:57:30,870 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-07 00:57:30,873 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-07 00:57:30,884 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-07 00:57:30,908 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-07 00:57:30,908 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-07 00:57:30,908 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-11-07 00:57:30,908 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-07 00:57:30,908 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-07 00:57:30,908 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-07 00:57:30,909 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-07 00:57:30,909 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-07 00:57:30,925 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states. [2020-11-07 00:57:30,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-11-07 00:57:30,936 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:57:30,937 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, 1, 1, 1] [2020-11-07 00:57:30,937 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:57:30,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:57:30,944 INFO L82 PathProgramCache]: Analyzing trace with hash -1821326867, now seen corresponding path program 1 times [2020-11-07 00:57:30,954 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:57:30,954 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [582522177] [2020-11-07 00:57:30,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:57:31,041 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:57:31,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:57:31,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:57:31,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:57:31,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-11-07 00:57:31,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:57:31,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-11-07 00:57:31,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:57:31,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 00:57:31,262 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [582522177] [2020-11-07 00:57:31,264 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:57:31,265 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-07 00:57:31,265 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831879030] [2020-11-07 00:57:31,270 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-07 00:57:31,271 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:57:31,285 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-07 00:57:31,286 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-07 00:57:31,288 INFO L87 Difference]: Start difference. First operand 85 states. Second operand 4 states. [2020-11-07 00:57:31,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:57:31,669 INFO L93 Difference]: Finished difference Result 165 states and 199 transitions. [2020-11-07 00:57:31,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-07 00:57:31,670 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 35 [2020-11-07 00:57:31,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:57:31,680 INFO L225 Difference]: With dead ends: 165 [2020-11-07 00:57:31,681 INFO L226 Difference]: Without dead ends: 73 [2020-11-07 00:57:31,685 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-07 00:57:31,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2020-11-07 00:57:31,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 61. [2020-11-07 00:57:31,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2020-11-07 00:57:31,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 64 transitions. [2020-11-07 00:57:31,740 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 64 transitions. Word has length 35 [2020-11-07 00:57:31,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:57:31,741 INFO L481 AbstractCegarLoop]: Abstraction has 61 states and 64 transitions. [2020-11-07 00:57:31,741 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-07 00:57:31,741 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 64 transitions. [2020-11-07 00:57:31,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-11-07 00:57:31,743 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:57:31,743 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, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 00:57:31,743 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-07 00:57:31,743 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:57:31,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:57:31,744 INFO L82 PathProgramCache]: Analyzing trace with hash 937008902, now seen corresponding path program 1 times [2020-11-07 00:57:31,745 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:57:31,745 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [187473594] [2020-11-07 00:57:31,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:57:31,751 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:57:31,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:57:31,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:57:31,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:57:31,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-11-07 00:57:31,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:57:31,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-11-07 00:57:31,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:57:31,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 00:57:31,879 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [187473594] [2020-11-07 00:57:31,880 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:57:31,880 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-07 00:57:31,880 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182451060] [2020-11-07 00:57:31,881 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-07 00:57:31,881 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:57:31,882 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-07 00:57:31,882 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-07 00:57:31,882 INFO L87 Difference]: Start difference. First operand 61 states and 64 transitions. Second operand 6 states. [2020-11-07 00:57:32,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:57:32,323 INFO L93 Difference]: Finished difference Result 148 states and 162 transitions. [2020-11-07 00:57:32,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-07 00:57:32,324 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 39 [2020-11-07 00:57:32,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:57:32,326 INFO L225 Difference]: With dead ends: 148 [2020-11-07 00:57:32,326 INFO L226 Difference]: Without dead ends: 99 [2020-11-07 00:57:32,328 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2020-11-07 00:57:32,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2020-11-07 00:57:32,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 63. [2020-11-07 00:57:32,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2020-11-07 00:57:32,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 66 transitions. [2020-11-07 00:57:32,345 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 66 transitions. Word has length 39 [2020-11-07 00:57:32,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:57:32,345 INFO L481 AbstractCegarLoop]: Abstraction has 63 states and 66 transitions. [2020-11-07 00:57:32,345 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-07 00:57:32,345 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 66 transitions. [2020-11-07 00:57:32,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-11-07 00:57:32,347 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:57:32,347 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 00:57:32,347 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-07 00:57:32,347 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:57:32,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:57:32,348 INFO L82 PathProgramCache]: Analyzing trace with hash 1587017737, now seen corresponding path program 1 times [2020-11-07 00:57:32,348 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:57:32,349 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1685147735] [2020-11-07 00:57:32,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:57:32,354 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:57:32,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:57:32,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:57:32,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:57:32,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-11-07 00:57:32,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:57:32,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 00:57:32,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:57:32,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 00:57:32,494 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1685147735] [2020-11-07 00:57:32,494 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:57:32,494 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-07 00:57:32,494 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521924068] [2020-11-07 00:57:32,495 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-07 00:57:32,495 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:57:32,495 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-07 00:57:32,496 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-07 00:57:32,496 INFO L87 Difference]: Start difference. First operand 63 states and 66 transitions. Second operand 7 states. [2020-11-07 00:57:32,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:57:32,882 INFO L93 Difference]: Finished difference Result 120 states and 129 transitions. [2020-11-07 00:57:32,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-07 00:57:32,882 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 41 [2020-11-07 00:57:32,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:57:32,884 INFO L225 Difference]: With dead ends: 120 [2020-11-07 00:57:32,884 INFO L226 Difference]: Without dead ends: 98 [2020-11-07 00:57:32,885 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-11-07 00:57:32,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2020-11-07 00:57:32,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 73. [2020-11-07 00:57:32,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-11-07 00:57:32,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 79 transitions. [2020-11-07 00:57:32,904 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 79 transitions. Word has length 41 [2020-11-07 00:57:32,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:57:32,904 INFO L481 AbstractCegarLoop]: Abstraction has 73 states and 79 transitions. [2020-11-07 00:57:32,904 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-07 00:57:32,905 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 79 transitions. [2020-11-07 00:57:32,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-11-07 00:57:32,907 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:57:32,907 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 00:57:32,907 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-07 00:57:32,908 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:57:32,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:57:32,908 INFO L82 PathProgramCache]: Analyzing trace with hash -2090405153, now seen corresponding path program 1 times [2020-11-07 00:57:32,909 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:57:32,909 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [903800681] [2020-11-07 00:57:32,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:57:37,324 INFO L316 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-11-07 00:57:37,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:57:37,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:57:37,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:57:37,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-11-07 00:57:37,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:57:37,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-11-07 00:57:37,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:57:37,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 00:57:38,546 WARN L860 $PredicateComparison]: unable to prove that (exists ((|v_main_#t~ret14_8| Int)) (not (= c_main_~len~1 |v_main_#t~ret14_8|))) is different from true [2020-11-07 00:57:38,549 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [903800681] [2020-11-07 00:57:38,549 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:57:38,549 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2020-11-07 00:57:38,549 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947557609] [2020-11-07 00:57:38,550 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-11-07 00:57:38,550 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:57:38,551 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-11-07 00:57:38,551 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=348, Unknown=1, NotChecked=38, Total=462 [2020-11-07 00:57:38,551 INFO L87 Difference]: Start difference. First operand 73 states and 79 transitions. Second operand 22 states. [2020-11-07 00:57:39,040 WARN L194 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 47 [2020-11-07 00:57:48,241 WARN L194 SmtUtils]: Spent 699.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2020-11-07 00:57:48,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:57:48,264 INFO L93 Difference]: Finished difference Result 134 states and 146 transitions. [2020-11-07 00:57:48,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-11-07 00:57:48,265 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 49 [2020-11-07 00:57:48,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:57:48,265 INFO L225 Difference]: With dead ends: 134 [2020-11-07 00:57:48,266 INFO L226 Difference]: Without dead ends: 0 [2020-11-07 00:57:48,268 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 14 SyntacticMatches, 3 SemanticMatches, 40 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 383 ImplicationChecksByTransitivity, 10.2s TimeCoverageRelationStatistics Valid=275, Invalid=1357, Unknown=12, NotChecked=78, Total=1722 [2020-11-07 00:57:48,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-07 00:57:48,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-07 00:57:48,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-07 00:57:48,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-07 00:57:48,269 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 49 [2020-11-07 00:57:48,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:57:48,270 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-07 00:57:48,270 INFO L482 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-11-07 00:57:48,270 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-07 00:57:48,270 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-07 00:57:48,270 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-07 00:57:48,272 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-07 00:57:49,242 WARN L194 SmtUtils]: Spent 634.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 1 [2020-11-07 00:57:49,896 WARN L194 SmtUtils]: Spent 628.00 ms on a formula simplification that was a NOOP. DAG size: 4 [2020-11-07 00:57:50,519 WARN L194 SmtUtils]: Spent 622.00 ms on a formula simplification that was a NOOP. DAG size: 4 [2020-11-07 00:57:51,268 WARN L194 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 38 [2020-11-07 00:57:51,417 WARN L194 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 35 [2020-11-07 00:57:52,139 WARN L194 SmtUtils]: Spent 679.00 ms on a formula simplification that was a NOOP. DAG size: 4 [2020-11-07 00:57:52,844 WARN L194 SmtUtils]: Spent 643.00 ms on a formula simplification that was a NOOP. DAG size: 4 [2020-11-07 00:57:53,761 WARN L194 SmtUtils]: Spent 654.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 1 [2020-11-07 00:57:53,765 INFO L262 CegarLoopResult]: At program point reach_errorEXIT(line 12) the Hoare annotation is: (forall ((|v_main_#t~ret14_8| Int)) (= main_~len~1 |v_main_#t~ret14_8|)) [2020-11-07 00:57:53,765 INFO L269 CegarLoopResult]: At program point reach_errorENTRY(line 12) the Hoare annotation is: true [2020-11-07 00:57:53,765 INFO L269 CegarLoopResult]: At program point L12-1(line 12) the Hoare annotation is: true [2020-11-07 00:57:53,765 INFO L262 CegarLoopResult]: At program point L12-2(line 12) the Hoare annotation is: (forall ((|v_main_#t~ret14_8| Int)) (= main_~len~1 |v_main_#t~ret14_8|)) [2020-11-07 00:57:53,765 INFO L262 CegarLoopResult]: At program point L12-3(line 12) the Hoare annotation is: (forall ((|v_main_#t~ret14_8| Int)) (= main_~len~1 |v_main_#t~ret14_8|)) [2020-11-07 00:57:53,766 INFO L262 CegarLoopResult]: At program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) the Hoare annotation is: (forall ((|v_main_#t~ret14_8| Int)) (= main_~len~1 |v_main_#t~ret14_8|)) [2020-11-07 00:57:53,766 INFO L262 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2020-11-07 00:57:53,766 INFO L269 CegarLoopResult]: At program point L-1-1(line -1) the Hoare annotation is: true [2020-11-07 00:57:53,766 INFO L269 CegarLoopResult]: At program point ULTIMATE.initFINAL(line 12) the Hoare annotation is: true [2020-11-07 00:57:53,766 INFO L269 CegarLoopResult]: At program point L12(line 12) the Hoare annotation is: true [2020-11-07 00:57:53,766 INFO L269 CegarLoopResult]: At program point L12-1(line 12) the Hoare annotation is: true [2020-11-07 00:57:53,766 INFO L269 CegarLoopResult]: At program point L12-2(line 12) the Hoare annotation is: true [2020-11-07 00:57:53,766 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|)) [2020-11-07 00:57:53,766 INFO L269 CegarLoopResult]: At program point L12-3(line 12) the Hoare annotation is: true [2020-11-07 00:57:53,767 INFO L269 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2020-11-07 00:57:53,767 INFO L269 CegarLoopResult]: At program point myexitENTRY(lines 571 573) the Hoare annotation is: true [2020-11-07 00:57:53,767 INFO L269 CegarLoopResult]: At program point L572(line 572) the Hoare annotation is: true [2020-11-07 00:57:53,767 INFO L266 CegarLoopResult]: For program point myexitEXIT(lines 571 573) no Hoare annotation was computed. [2020-11-07 00:57:53,767 INFO L269 CegarLoopResult]: At program point L598(line 598) the Hoare annotation is: true [2020-11-07 00:57:53,767 INFO L269 CegarLoopResult]: At program point L597(line 597) the Hoare annotation is: true [2020-11-07 00:57:53,767 INFO L269 CegarLoopResult]: At program point L598-1(line 598) the Hoare annotation is: true [2020-11-07 00:57:53,767 INFO L269 CegarLoopResult]: At program point L597-1(line 597) the Hoare annotation is: true [2020-11-07 00:57:53,767 INFO L269 CegarLoopResult]: At program point L597-2(line 597) the Hoare annotation is: true [2020-11-07 00:57:53,767 INFO L269 CegarLoopResult]: At program point L596-2(lines 596 600) the Hoare annotation is: true [2020-11-07 00:57:53,767 INFO L269 CegarLoopResult]: At program point L596-3(lines 595 601) the Hoare annotation is: true [2020-11-07 00:57:53,768 INFO L269 CegarLoopResult]: At program point sll_destroyEXIT(lines 595 601) the Hoare annotation is: true [2020-11-07 00:57:53,768 INFO L262 CegarLoopResult]: At program point sll_destroyENTRY(lines 595 601) the Hoare annotation is: (= |old(#valid)| |#valid|) [2020-11-07 00:57:53,768 INFO L266 CegarLoopResult]: For program point __bswap_32ENTRY(lines 75 79) no Hoare annotation was computed. [2020-11-07 00:57:53,771 INFO L266 CegarLoopResult]: For program point L78(line 78) no Hoare annotation was computed. [2020-11-07 00:57:53,771 INFO L266 CegarLoopResult]: For program point L78-1(line 78) no Hoare annotation was computed. [2020-11-07 00:57:53,771 INFO L266 CegarLoopResult]: For program point __bswap_32FINAL(lines 75 79) no Hoare annotation was computed. [2020-11-07 00:57:53,771 INFO L266 CegarLoopResult]: For program point __bswap_32EXIT(lines 75 79) no Hoare annotation was computed. [2020-11-07 00:57:53,772 INFO L269 CegarLoopResult]: At program point L578-1(lines 578 580) the Hoare annotation is: true [2020-11-07 00:57:53,772 INFO L269 CegarLoopResult]: At program point sll_createEXIT(lines 574 586) the Hoare annotation is: true [2020-11-07 00:57:53,772 INFO L269 CegarLoopResult]: At program point L576-2(lines 576 584) the Hoare annotation is: true [2020-11-07 00:57:53,772 INFO L269 CegarLoopResult]: At program point L576-3(lines 576 584) the Hoare annotation is: true [2020-11-07 00:57:53,772 INFO L269 CegarLoopResult]: At program point L583(line 583) the Hoare annotation is: true [2020-11-07 00:57:53,772 INFO L269 CegarLoopResult]: At program point L583-1(line 583) the Hoare annotation is: true [2020-11-07 00:57:53,772 INFO L269 CegarLoopResult]: At program point L581(line 581) the Hoare annotation is: true [2020-11-07 00:57:53,773 INFO L269 CegarLoopResult]: At program point L583-2(line 583) the Hoare annotation is: true [2020-11-07 00:57:53,773 INFO L269 CegarLoopResult]: At program point L579(line 579) the Hoare annotation is: true [2020-11-07 00:57:53,773 INFO L269 CegarLoopResult]: At program point L577(line 577) the Hoare annotation is: true [2020-11-07 00:57:53,773 INFO L269 CegarLoopResult]: At program point L577-1(line 577) the Hoare annotation is: true [2020-11-07 00:57:53,773 INFO L262 CegarLoopResult]: At program point L575(line 575) the Hoare annotation is: (or (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= |sll_create_#in~len| sll_create_~len) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#valid)| |#valid|)) (not (<= 32 main_~len~1))) [2020-11-07 00:57:53,774 INFO L262 CegarLoopResult]: At program point sll_createENTRY(lines 574 586) the Hoare annotation is: (or (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#valid)| |#valid|)) (not (<= 32 main_~len~1))) [2020-11-07 00:57:53,774 INFO L269 CegarLoopResult]: At program point sll_createFINAL(lines 574 586) the Hoare annotation is: true [2020-11-07 00:57:53,775 INFO L269 CegarLoopResult]: At program point L578(lines 578 580) the Hoare annotation is: true [2020-11-07 00:57:53,775 INFO L266 CegarLoopResult]: For program point __bswap_64ENTRY(lines 80 84) no Hoare annotation was computed. [2020-11-07 00:57:53,775 INFO L266 CegarLoopResult]: For program point __bswap_64FINAL(lines 80 84) no Hoare annotation was computed. [2020-11-07 00:57:53,776 INFO L266 CegarLoopResult]: For program point __bswap_64EXIT(lines 80 84) no Hoare annotation was computed. [2020-11-07 00:57:53,776 INFO L266 CegarLoopResult]: For program point L83(line 83) no Hoare annotation was computed. [2020-11-07 00:57:53,776 INFO L266 CegarLoopResult]: For program point L83-1(line 83) no Hoare annotation was computed. [2020-11-07 00:57:53,776 INFO L269 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2020-11-07 00:57:53,776 INFO L269 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-11-07 00:57:53,776 INFO L269 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-11-07 00:57:53,776 INFO L269 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2020-11-07 00:57:53,777 INFO L262 CegarLoopResult]: At program point L609(lines 602 615) the Hoare annotation is: (and (< main_~len~1 33) (<= 32 main_~len~1)) [2020-11-07 00:57:53,777 INFO L262 CegarLoopResult]: At program point L607(line 607) the Hoare annotation is: (and (< main_~len~1 33) (<= 32 main_~len~1)) [2020-11-07 00:57:53,777 INFO L262 CegarLoopResult]: At program point L607-1(line 607) the Hoare annotation is: (and (< main_~len~1 33) (<= 32 main_~len~1)) [2020-11-07 00:57:53,777 INFO L262 CegarLoopResult]: At program point L605(line 605) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#length)| |#length|) (< main_~len~1 32) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#valid)| |#valid|)) [2020-11-07 00:57:53,777 INFO L262 CegarLoopResult]: At program point L605-1(line 605) the Hoare annotation is: (and (= main_~len~1 |main_#t~post12|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#length)| |#length|) (< main_~len~1 32) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#valid)| |#valid|)) [2020-11-07 00:57:53,778 INFO L262 CegarLoopResult]: At program point L605-2(line 605) the Hoare annotation is: (and (= main_~len~1 (+ |main_#t~post12| 1)) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (< |main_#t~post12| 32) (= |old(#valid)| |#valid|)) [2020-11-07 00:57:53,778 INFO L269 CegarLoopResult]: At program point mainEXIT(lines 602 615) the Hoare annotation is: true [2020-11-07 00:57:53,778 INFO L269 CegarLoopResult]: At program point mainFINAL(lines 602 615) the Hoare annotation is: true [2020-11-07 00:57:53,778 INFO L262 CegarLoopResult]: At program point L614(line 614) the Hoare annotation is: false [2020-11-07 00:57:53,778 INFO L262 CegarLoopResult]: At program point L608(line 608) the Hoare annotation is: (and (< main_~len~1 33) (<= 32 main_~len~1)) [2020-11-07 00:57:53,778 INFO L262 CegarLoopResult]: At program point L608-1(line 608) the Hoare annotation is: (and (< main_~len~1 33) (<= 32 main_~len~1)) [2020-11-07 00:57:53,778 INFO L262 CegarLoopResult]: At program point L608-2(lines 608 610) the Hoare annotation is: (and (< main_~len~1 33) (<= 32 main_~len~1)) [2020-11-07 00:57:53,778 INFO L262 CegarLoopResult]: At program point mainENTRY(lines 602 615) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#valid)| |#valid|)) [2020-11-07 00:57:53,779 INFO L262 CegarLoopResult]: At program point L608-3(line 608) the Hoare annotation is: (and (not (= |main_#t~ret14| main_~len~1)) (< main_~len~1 33) (<= 32 main_~len~1)) [2020-11-07 00:57:53,779 INFO L269 CegarLoopResult]: At program point L608-4(line 608) the Hoare annotation is: true [2020-11-07 00:57:53,779 INFO L262 CegarLoopResult]: At program point L604-1(line 604) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#length)| |#length|) (< main_~len~1 33) (= |#memory_int| |old(#memory_int)|) (or (and (< main_~len~1 32) |main_#t~short11|) (and (not |main_#t~short11|) (<= 32 main_~len~1))) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#valid)| |#valid|)) [2020-11-07 00:57:53,780 INFO L262 CegarLoopResult]: At program point L604-2(line 604) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#length)| |#length|) (< main_~len~1 32) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) |main_#t~short11| (= |old(#valid)| |#valid|)) [2020-11-07 00:57:53,780 INFO L262 CegarLoopResult]: At program point L604-3(line 604) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#length)| |#length|) (< main_~len~1 32) (= |#memory_int| |old(#memory_int)|) (<= 0 (+ |main_#t~nondet10| 2147483648)) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (<= |main_#t~nondet10| 2147483647) |main_#t~short11| (= |old(#valid)| |#valid|)) [2020-11-07 00:57:53,781 INFO L262 CegarLoopResult]: At program point L604-5(lines 604 606) the Hoare annotation is: (let ((.cse0 (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|)) (.cse1 (= |old(#length)| |#length|)) (.cse2 (= |#memory_int| |old(#memory_int)|)) (.cse4 (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|)) (.cse5 (= |old(#valid)| |#valid|)) (.cse3 (not |main_#t~short11|))) (or (and .cse0 .cse1 (< main_~len~1 33) .cse2 .cse3 .cse4 (<= 32 main_~len~1) .cse5) (and .cse0 .cse1 (< main_~len~1 32) .cse2 (<= 0 (+ |main_#t~nondet10| 2147483648)) .cse4 (<= |main_#t~nondet10| 2147483647) .cse5 (let ((.cse6 (= |main_#t~nondet10| 0))) (or (and (not .cse6) |main_#t~short11|) (and .cse6 .cse3)))))) [2020-11-07 00:57:53,781 INFO L262 CegarLoopResult]: At program point L604-6(line 604) the Hoare annotation is: (let ((.cse0 (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|)) (.cse1 (= |old(#length)| |#length|)) (.cse2 (= |#memory_int| |old(#memory_int)|)) (.cse3 (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|)) (.cse4 (= |old(#valid)| |#valid|))) (or (and .cse0 .cse1 (< main_~len~1 33) .cse2 (not |main_#t~short11|) .cse3 (<= 32 main_~len~1) .cse4) (and .cse0 .cse1 (< main_~len~1 32) .cse2 (<= 0 (+ |main_#t~nondet10| 2147483648)) (not (= |main_#t~nondet10| 0)) .cse3 (<= |main_#t~nondet10| 2147483647) |main_#t~short11| .cse4))) [2020-11-07 00:57:53,781 INFO L262 CegarLoopResult]: At program point L604-7(line 604) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#length)| |#length|) (< main_~len~1 33) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (<= 32 main_~len~1) (= |old(#valid)| |#valid|)) [2020-11-07 00:57:53,781 INFO L262 CegarLoopResult]: At program point L604-9(line 604) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#length)| |#length|) (< main_~len~1 32) (= |#memory_int| |old(#memory_int)|) (<= 0 (+ |main_#t~nondet10| 2147483648)) (not (= |main_#t~nondet10| 0)) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (<= |main_#t~nondet10| 2147483647) |main_#t~short11| (= |old(#valid)| |#valid|)) [2020-11-07 00:57:53,781 INFO L262 CegarLoopResult]: At program point L604-10(line 604) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#length)| |#length|) (< main_~len~1 32) (= |#memory_int| |old(#memory_int)|) (<= 0 (+ |main_#t~nondet10| 2147483648)) (not (= |main_#t~nondet10| 0)) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (<= |main_#t~nondet10| 2147483647) (= |old(#valid)| |#valid|)) [2020-11-07 00:57:53,782 INFO L262 CegarLoopResult]: At program point L604-11(lines 604 606) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (< main_~len~1 33) (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#valid)| |#valid|)) [2020-11-07 00:57:53,782 INFO L262 CegarLoopResult]: At program point L604-12(lines 604 606) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#length)| |#length|) (< main_~len~1 33) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (<= 32 main_~len~1) (= |old(#valid)| |#valid|)) [2020-11-07 00:57:53,782 INFO L262 CegarLoopResult]: At program point L613(line 613) the Hoare annotation is: false [2020-11-07 00:57:53,782 INFO L269 CegarLoopResult]: At program point L611(line 611) the Hoare annotation is: true [2020-11-07 00:57:53,782 INFO L269 CegarLoopResult]: At program point L611-1(line 611) the Hoare annotation is: true [2020-11-07 00:57:53,782 INFO L269 CegarLoopResult]: At program point sll_lengthEXIT(lines 587 594) the Hoare annotation is: true [2020-11-07 00:57:53,782 INFO L269 CegarLoopResult]: At program point sll_lengthENTRY(lines 587 594) the Hoare annotation is: true [2020-11-07 00:57:53,783 INFO L269 CegarLoopResult]: At program point L591(line 591) the Hoare annotation is: true [2020-11-07 00:57:53,783 INFO L269 CegarLoopResult]: At program point L590(line 590) the Hoare annotation is: true [2020-11-07 00:57:53,783 INFO L269 CegarLoopResult]: At program point L591-1(line 591) the Hoare annotation is: true [2020-11-07 00:57:53,783 INFO L269 CegarLoopResult]: At program point L590-1(line 590) the Hoare annotation is: true [2020-11-07 00:57:53,783 INFO L269 CegarLoopResult]: At program point L591-2(line 591) the Hoare annotation is: true [2020-11-07 00:57:53,783 INFO L269 CegarLoopResult]: At program point L588(line 588) the Hoare annotation is: true [2020-11-07 00:57:53,783 INFO L269 CegarLoopResult]: At program point L590-2(line 590) the Hoare annotation is: true [2020-11-07 00:57:53,783 INFO L269 CegarLoopResult]: At program point L589-2(lines 589 592) the Hoare annotation is: true [2020-11-07 00:57:53,783 INFO L269 CegarLoopResult]: At program point L589-3(lines 589 592) the Hoare annotation is: true [2020-11-07 00:57:53,784 INFO L269 CegarLoopResult]: At program point sll_lengthFINAL(lines 587 594) the Hoare annotation is: true [2020-11-07 00:57:53,798 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-11-07 00:57:53,799 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-11-07 00:57:53,799 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-11-07 00:57:53,800 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-11-07 00:57:53,800 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-11-07 00:57:53,800 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-11-07 00:57:53,800 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-07 00:57:53,800 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-07 00:57:53,801 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-07 00:57:53,801 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-07 00:57:53,801 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-11-07 00:57:53,801 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-11-07 00:57:53,802 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-11-07 00:57:53,802 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-11-07 00:57:53,802 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-11-07 00:57:53,802 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-11-07 00:57:53,802 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-11-07 00:57:53,803 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-11-07 00:57:53,803 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-07 00:57:53,803 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-07 00:57:53,803 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-07 00:57:53,803 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-07 00:57:53,803 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-11-07 00:57:53,804 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-11-07 00:57:53,805 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_#t~ret14_8,QUANTIFIED] [2020-11-07 00:57:53,807 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 12:57:53 BoogieIcfgContainer [2020-11-07 00:57:53,807 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-07 00:57:53,809 INFO L168 Benchmark]: Toolchain (without parser) took 24303.89 ms. Allocated memory was 151.0 MB in the beginning and 187.7 MB in the end (delta: 36.7 MB). Free memory was 126.3 MB in the beginning and 161.2 MB in the end (delta: -34.9 MB). Peak memory consumption was 106.0 MB. Max. memory is 8.0 GB. [2020-11-07 00:57:53,810 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 151.0 MB. Free memory is still 125.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-07 00:57:53,810 INFO L168 Benchmark]: CACSL2BoogieTranslator took 531.81 ms. Allocated memory is still 151.0 MB. Free memory was 125.8 MB in the beginning and 103.7 MB in the end (delta: 22.1 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2020-11-07 00:57:53,811 INFO L168 Benchmark]: Boogie Preprocessor took 77.88 ms. Allocated memory is still 151.0 MB. Free memory was 103.7 MB in the beginning and 132.5 MB in the end (delta: -28.9 MB). Peak memory consumption was 4.7 MB. Max. memory is 8.0 GB. [2020-11-07 00:57:53,812 INFO L168 Benchmark]: RCFGBuilder took 721.43 ms. Allocated memory is still 151.0 MB. Free memory was 132.5 MB in the beginning and 88.5 MB in the end (delta: 44.0 MB). Peak memory consumption was 44.0 MB. Max. memory is 8.0 GB. [2020-11-07 00:57:53,813 INFO L168 Benchmark]: TraceAbstraction took 22961.38 ms. Allocated memory was 151.0 MB in the beginning and 187.7 MB in the end (delta: 36.7 MB). Free memory was 88.0 MB in the beginning and 161.2 MB in the end (delta: -73.3 MB). Peak memory consumption was 66.8 MB. Max. memory is 8.0 GB. [2020-11-07 00:57:53,817 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 151.0 MB. Free memory is still 125.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 531.81 ms. Allocated memory is still 151.0 MB. Free memory was 125.8 MB in the beginning and 103.7 MB in the end (delta: 22.1 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 77.88 ms. Allocated memory is still 151.0 MB. Free memory was 103.7 MB in the beginning and 132.5 MB in the end (delta: -28.9 MB). Peak memory consumption was 4.7 MB. Max. memory is 8.0 GB. * RCFGBuilder took 721.43 ms. Allocated memory is still 151.0 MB. Free memory was 132.5 MB in the beginning and 88.5 MB in the end (delta: 44.0 MB). Peak memory consumption was 44.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 22961.38 ms. Allocated memory was 151.0 MB in the beginning and 187.7 MB in the end (delta: 36.7 MB). Free memory was 88.0 MB in the beginning and 161.2 MB in the end (delta: -73.3 MB). Peak memory consumption was 66.8 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$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 - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_#t~ret14_8,QUANTIFIED] * 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 #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - 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 #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - 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: 596]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 576]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 602]: Loop Invariant Derived loop invariant: len < 33 && 32 <= len - InvariantResult [Line: 589]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 604]: Loop Invariant [2020-11-07 00:57:53,829 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-11-07 00:57:53,829 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-11-07 00:57:53,829 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-11-07 00:57:53,830 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-11-07 00:57:53,830 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-11-07 00:57:53,830 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-11-07 00:57:53,830 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-07 00:57:53,830 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-07 00:57:53,830 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-07 00:57:53,830 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-07 00:57:53,831 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-11-07 00:57:53,831 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-11-07 00:57:53,831 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-11-07 00:57:53,831 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-11-07 00:57:53,831 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-11-07 00:57:53,832 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-11-07 00:57:53,832 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-11-07 00:57:53,832 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-11-07 00:57:53,832 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-07 00:57:53,832 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-07 00:57:53,832 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-07 00:57:53,832 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-07 00:57:53,833 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-11-07 00:57:53,833 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ Derived loop invariant: ((((#memory_$Pointer$ == \old(#memory_$Pointer$) && len < 33) && \old(unknown-#length-unknown) == unknown-#length-unknown) && unknown-#memory_int-unknown == \old(unknown-#memory_int-unknown)) && #memory_$Pointer$ == \old(#memory_$Pointer$)) && \old(\valid) == \valid - InvariantResult [Line: 572]: Loop Invariant Derived loop invariant: 1 - ProcedureContractResult [Line: 12]: Procedure Contract for reach_error [2020-11-07 00:57:53,833 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_#t~ret14_8,QUANTIFIED] [2020-11-07 00:57:53,833 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_#t~ret14_8,QUANTIFIED] Derived contract for procedure reach_error: (forall v_main_#t~ret14_8 : int :: len == v_main_#t~ret14_8) - ProcedureContractResult [Line: 595]: Procedure Contract for sll_destroy Derived contract for procedure sll_destroy: 1 - ProcedureContractResult [Line: 574]: Procedure Contract for sll_create Derived contract for procedure sll_create: 1 - ProcedureContractResult [Line: 602]: Procedure Contract for main Derived contract for procedure main: 1 - ProcedureContractResult [Line: 587]: Procedure Contract for sll_length Derived contract for procedure sll_length: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 96 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 17.3s, OverallIterations: 4, TraceHistogramMax: 2, AutomataDifference: 10.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 5.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 248 SDtfs, 536 SDslu, 408 SDs, 0 SdLazy, 834 SolverSat, 124 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 98 GetRequests, 35 SyntacticMatches, 3 SemanticMatches, 60 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 387 ImplicationChecksByTransitivity, 10.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=85occurred 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, 73 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 85 LocationsWithAnnotation, 237 PreInvPairs, 315 NumberOfFragments, 612 HoareAnnotationTreeSize, 237 FomulaSimplifications, 2171 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 85 FomulaSimplificationsInter, 1071 FormulaSimplificationTreeSizeReductionInter, 5.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: No data available, 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...