/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 --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/list-simple/dll2n_update_all_reverse.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-07 05:21:29,961 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-07 05:21:29,964 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-07 05:21:30,020 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-07 05:21:30,021 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-07 05:21:30,026 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-07 05:21:30,030 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-07 05:21:30,037 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-07 05:21:30,040 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-07 05:21:30,047 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-07 05:21:30,048 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-07 05:21:30,050 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-07 05:21:30,050 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-07 05:21:30,054 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-07 05:21:30,056 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-07 05:21:30,058 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-07 05:21:30,060 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-07 05:21:30,063 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-07 05:21:30,070 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-07 05:21:30,092 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-07 05:21:30,094 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-07 05:21:30,096 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-07 05:21:30,097 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-07 05:21:30,100 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-07 05:21:30,109 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-07 05:21:30,109 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-07 05:21:30,110 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-07 05:21:30,112 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-07 05:21:30,113 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-07 05:21:30,114 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-07 05:21:30,114 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-07 05:21:30,115 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-07 05:21:30,117 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-07 05:21:30,118 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-07 05:21:30,119 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-07 05:21:30,120 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-07 05:21:30,120 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-07 05:21:30,121 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-07 05:21:30,121 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-07 05:21:30,122 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-07 05:21:30,123 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-07 05:21:30,124 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 05:21:30,147 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-07 05:21:30,147 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-07 05:21:30,151 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-07 05:21:30,152 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-07 05:21:30,152 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-07 05:21:30,152 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-07 05:21:30,152 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-07 05:21:30,153 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-07 05:21:30,153 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-07 05:21:30,153 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-07 05:21:30,154 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-07 05:21:30,155 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-07 05:21:30,155 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-07 05:21:30,155 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-07 05:21:30,155 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-07 05:21:30,156 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-11-07 05:21:30,156 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-07 05:21:30,156 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-07 05:21:30,156 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 05:21:30,156 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-07 05:21:30,157 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-11-07 05:21:30,157 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-07 05:21:30,157 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-11-07 05:21:30,555 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-07 05:21:30,601 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-07 05:21:30,605 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-07 05:21:30,606 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-07 05:21:30,607 INFO L275 PluginConnector]: CDTParser initialized [2020-11-07 05:21:30,608 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-simple/dll2n_update_all_reverse.i [2020-11-07 05:21:30,705 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ffb4be432/03d03385500743a9ae96344c3e288727/FLAG26c3b9450 [2020-11-07 05:21:31,482 INFO L306 CDTParser]: Found 1 translation units. [2020-11-07 05:21:31,484 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/list-simple/dll2n_update_all_reverse.i [2020-11-07 05:21:31,508 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ffb4be432/03d03385500743a9ae96344c3e288727/FLAG26c3b9450 [2020-11-07 05:21:31,685 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ffb4be432/03d03385500743a9ae96344c3e288727 [2020-11-07 05:21:31,688 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-07 05:21:31,696 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-07 05:21:31,698 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-07 05:21:31,698 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-07 05:21:31,707 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-07 05:21:31,708 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 05:21:31" (1/1) ... [2020-11-07 05:21:31,717 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9572e55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:21:31, skipping insertion in model container [2020-11-07 05:21:31,717 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 05:21:31" (1/1) ... [2020-11-07 05:21:31,728 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-07 05:21:31,803 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-07 05:21:32,169 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 05:21:32,184 INFO L203 MainTranslator]: Completed pre-run [2020-11-07 05:21:32,235 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 05:21:32,322 INFO L208 MainTranslator]: Completed translation [2020-11-07 05:21:32,322 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:21:32 WrapperNode [2020-11-07 05:21:32,322 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-07 05:21:32,324 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-07 05:21:32,324 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-07 05:21:32,324 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-07 05:21:32,339 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:21:32" (1/1) ... [2020-11-07 05:21:32,339 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:21:32" (1/1) ... [2020-11-07 05:21:32,384 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:21:32" (1/1) ... [2020-11-07 05:21:32,384 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:21:32" (1/1) ... [2020-11-07 05:21:32,419 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:21:32" (1/1) ... [2020-11-07 05:21:32,425 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:21:32" (1/1) ... [2020-11-07 05:21:32,430 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:21:32" (1/1) ... [2020-11-07 05:21:32,437 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-07 05:21:32,455 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-07 05:21:32,455 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-07 05:21:32,456 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-07 05:21:32,462 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:21:32" (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 05:21:32,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-07 05:21:32,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-07 05:21:32,559 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-07 05:21:32,559 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-11-07 05:21:32,560 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-11-07 05:21:32,560 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2020-11-07 05:21:32,560 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2020-11-07 05:21:32,561 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create [2020-11-07 05:21:32,561 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_destroy [2020-11-07 05:21:32,561 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_get_data_at [2020-11-07 05:21:32,561 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_update_at [2020-11-07 05:21:32,562 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-07 05:21:32,562 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-07 05:21:32,562 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-07 05:21:32,563 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-11-07 05:21:32,563 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-11-07 05:21:32,563 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-07 05:21:32,563 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-07 05:21:32,564 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-11-07 05:21:32,565 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-11-07 05:21:32,565 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-11-07 05:21:32,565 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-11-07 05:21:32,569 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-11-07 05:21:32,569 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-11-07 05:21:32,569 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-11-07 05:21:32,570 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-11-07 05:21:32,570 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-11-07 05:21:32,570 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-11-07 05:21:32,570 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-11-07 05:21:32,571 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-11-07 05:21:32,571 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-11-07 05:21:32,571 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-11-07 05:21:32,571 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-11-07 05:21:32,571 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-11-07 05:21:32,571 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-11-07 05:21:32,572 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-11-07 05:21:32,572 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-11-07 05:21:32,572 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-11-07 05:21:32,572 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-11-07 05:21:32,572 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-11-07 05:21:32,572 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-11-07 05:21:32,573 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-11-07 05:21:32,573 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-11-07 05:21:32,573 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-11-07 05:21:32,573 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-11-07 05:21:32,573 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-11-07 05:21:32,573 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-11-07 05:21:32,574 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-11-07 05:21:32,574 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-11-07 05:21:32,574 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-11-07 05:21:32,574 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-11-07 05:21:32,574 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-11-07 05:21:32,574 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-11-07 05:21:32,574 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-11-07 05:21:32,575 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-11-07 05:21:32,575 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-11-07 05:21:32,575 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-11-07 05:21:32,575 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-11-07 05:21:32,575 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-11-07 05:21:32,575 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-11-07 05:21:32,575 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-11-07 05:21:32,576 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-11-07 05:21:32,577 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-11-07 05:21:32,577 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-11-07 05:21:32,577 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-11-07 05:21:32,578 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-11-07 05:21:32,578 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-11-07 05:21:32,578 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-11-07 05:21:32,578 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-11-07 05:21:32,578 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-11-07 05:21:32,578 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-11-07 05:21:32,579 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-11-07 05:21:32,579 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-11-07 05:21:32,579 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-11-07 05:21:32,580 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-11-07 05:21:32,580 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-11-07 05:21:32,580 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-11-07 05:21:32,580 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-11-07 05:21:32,580 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-11-07 05:21:32,580 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-11-07 05:21:32,582 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-11-07 05:21:32,582 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-11-07 05:21:32,582 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-11-07 05:21:32,582 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-11-07 05:21:32,584 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-11-07 05:21:32,584 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-11-07 05:21:32,584 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-11-07 05:21:32,585 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-11-07 05:21:32,586 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-11-07 05:21:32,587 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-11-07 05:21:32,587 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-11-07 05:21:32,588 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-11-07 05:21:32,588 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-11-07 05:21:32,588 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-11-07 05:21:32,588 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-11-07 05:21:32,589 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-11-07 05:21:32,589 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-11-07 05:21:32,589 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-11-07 05:21:32,589 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-11-07 05:21:32,589 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-11-07 05:21:32,589 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-11-07 05:21:32,590 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-11-07 05:21:32,590 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-11-07 05:21:32,590 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-11-07 05:21:32,590 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-11-07 05:21:32,590 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-11-07 05:21:32,590 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-11-07 05:21:32,590 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-11-07 05:21:32,591 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-11-07 05:21:32,591 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-11-07 05:21:32,591 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-11-07 05:21:32,591 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-11-07 05:21:32,591 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-11-07 05:21:32,591 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-11-07 05:21:32,592 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-11-07 05:21:32,592 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-11-07 05:21:32,592 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-11-07 05:21:32,592 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-11-07 05:21:32,592 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-11-07 05:21:32,592 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-11-07 05:21:32,593 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-11-07 05:21:32,593 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-11-07 05:21:32,593 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2020-11-07 05:21:32,594 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2020-11-07 05:21:32,594 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-07 05:21:32,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-07 05:21:32,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-07 05:21:32,594 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create [2020-11-07 05:21:32,594 INFO L130 BoogieDeclarations]: Found specification of procedure dll_destroy [2020-11-07 05:21:32,595 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-07 05:21:32,595 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-07 05:21:32,595 INFO L130 BoogieDeclarations]: Found specification of procedure dll_get_data_at [2020-11-07 05:21:32,596 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-07 05:21:32,596 INFO L130 BoogieDeclarations]: Found specification of procedure dll_update_at [2020-11-07 05:21:32,596 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-07 05:21:32,596 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-07 05:21:32,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-07 05:21:32,597 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-07 05:21:33,419 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2020-11-07 05:21:33,614 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-07 05:21:33,614 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-11-07 05:21:33,617 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 05:21:33 BoogieIcfgContainer [2020-11-07 05:21:33,617 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-07 05:21:33,619 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-07 05:21:33,619 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-07 05:21:33,623 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-07 05:21:33,623 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 05:21:31" (1/3) ... [2020-11-07 05:21:33,624 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c75ba6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 05:21:33, skipping insertion in model container [2020-11-07 05:21:33,625 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:21:32" (2/3) ... [2020-11-07 05:21:33,625 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c75ba6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 05:21:33, skipping insertion in model container [2020-11-07 05:21:33,625 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 05:21:33" (3/3) ... [2020-11-07 05:21:33,627 INFO L111 eAbstractionObserver]: Analyzing ICFG dll2n_update_all_reverse.i [2020-11-07 05:21:33,647 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-07 05:21:33,652 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-07 05:21:33,696 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-07 05:21:33,725 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-07 05:21:33,725 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-07 05:21:33,725 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-11-07 05:21:33,726 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-07 05:21:33,726 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-07 05:21:33,726 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-07 05:21:33,726 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-07 05:21:33,726 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-07 05:21:33,750 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states. [2020-11-07 05:21:33,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-11-07 05:21:33,765 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:21:33,767 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, 1, 1, 1] [2020-11-07 05:21:33,767 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:21:33,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:21:33,776 INFO L82 PathProgramCache]: Analyzing trace with hash -1258458075, now seen corresponding path program 1 times [2020-11-07 05:21:33,789 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:21:33,790 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1457418783] [2020-11-07 05:21:33,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:21:33,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:21:34,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:21:34,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:21:34,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-11-07 05:21:34,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:21:34,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-11-07 05:21:34,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:21:34,219 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 05:21:34,220 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1457418783] [2020-11-07 05:21:34,222 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 05:21:34,222 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-07 05:21:34,223 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234918072] [2020-11-07 05:21:34,229 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-07 05:21:34,229 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 05:21:34,244 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-07 05:21:34,245 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-07 05:21:34,248 INFO L87 Difference]: Start difference. First operand 108 states. Second operand 7 states. [2020-11-07 05:21:34,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 05:21:34,942 INFO L93 Difference]: Finished difference Result 201 states and 237 transitions. [2020-11-07 05:21:34,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-07 05:21:34,945 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 44 [2020-11-07 05:21:34,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 05:21:34,956 INFO L225 Difference]: With dead ends: 201 [2020-11-07 05:21:34,956 INFO L226 Difference]: Without dead ends: 97 [2020-11-07 05:21:34,961 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-11-07 05:21:34,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2020-11-07 05:21:35,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 86. [2020-11-07 05:21:35,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2020-11-07 05:21:35,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 91 transitions. [2020-11-07 05:21:35,026 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 91 transitions. Word has length 44 [2020-11-07 05:21:35,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 05:21:35,027 INFO L481 AbstractCegarLoop]: Abstraction has 86 states and 91 transitions. [2020-11-07 05:21:35,027 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-07 05:21:35,027 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 91 transitions. [2020-11-07 05:21:35,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-11-07 05:21:35,030 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:21:35,030 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 05:21:35,031 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-07 05:21:35,031 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:21:35,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:21:35,032 INFO L82 PathProgramCache]: Analyzing trace with hash 366445205, now seen corresponding path program 1 times [2020-11-07 05:21:35,032 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:21:35,033 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [438524412] [2020-11-07 05:21:35,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:21:35,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:21:35,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:21:35,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:21:35,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-11-07 05:21:35,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:21:35,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-11-07 05:21:35,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:21:35,255 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 05:21:35,256 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [438524412] [2020-11-07 05:21:35,256 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 05:21:35,256 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-11-07 05:21:35,257 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909525206] [2020-11-07 05:21:35,259 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-07 05:21:35,259 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 05:21:35,260 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-07 05:21:35,260 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-11-07 05:21:35,260 INFO L87 Difference]: Start difference. First operand 86 states and 91 transitions. Second operand 9 states. [2020-11-07 05:21:35,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 05:21:35,767 INFO L93 Difference]: Finished difference Result 165 states and 176 transitions. [2020-11-07 05:21:35,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-11-07 05:21:35,768 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 56 [2020-11-07 05:21:35,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 05:21:35,770 INFO L225 Difference]: With dead ends: 165 [2020-11-07 05:21:35,770 INFO L226 Difference]: Without dead ends: 110 [2020-11-07 05:21:35,772 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2020-11-07 05:21:35,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2020-11-07 05:21:35,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 99. [2020-11-07 05:21:35,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2020-11-07 05:21:35,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 105 transitions. [2020-11-07 05:21:35,793 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 105 transitions. Word has length 56 [2020-11-07 05:21:35,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 05:21:35,793 INFO L481 AbstractCegarLoop]: Abstraction has 99 states and 105 transitions. [2020-11-07 05:21:35,793 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-07 05:21:35,794 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 105 transitions. [2020-11-07 05:21:35,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-11-07 05:21:35,796 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:21:35,796 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 05:21:35,797 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-07 05:21:35,797 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:21:35,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:21:35,798 INFO L82 PathProgramCache]: Analyzing trace with hash 747032645, now seen corresponding path program 2 times [2020-11-07 05:21:35,798 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:21:35,798 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [957910801] [2020-11-07 05:21:35,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:21:35,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:21:35,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:21:35,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:21:35,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-11-07 05:21:35,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:21:35,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-11-07 05:21:35,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:21:36,000 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 05:21:36,001 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [957910801] [2020-11-07 05:21:36,001 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 05:21:36,001 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-11-07 05:21:36,001 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306715667] [2020-11-07 05:21:36,002 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-07 05:21:36,002 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 05:21:36,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-07 05:21:36,003 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-11-07 05:21:36,003 INFO L87 Difference]: Start difference. First operand 99 states and 105 transitions. Second operand 8 states. [2020-11-07 05:21:36,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 05:21:36,475 INFO L93 Difference]: Finished difference Result 167 states and 178 transitions. [2020-11-07 05:21:36,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-07 05:21:36,475 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 68 [2020-11-07 05:21:36,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 05:21:36,478 INFO L225 Difference]: With dead ends: 167 [2020-11-07 05:21:36,478 INFO L226 Difference]: Without dead ends: 99 [2020-11-07 05:21:36,479 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2020-11-07 05:21:36,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2020-11-07 05:21:36,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2020-11-07 05:21:36,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2020-11-07 05:21:36,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 104 transitions. [2020-11-07 05:21:36,517 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 104 transitions. Word has length 68 [2020-11-07 05:21:36,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 05:21:36,517 INFO L481 AbstractCegarLoop]: Abstraction has 99 states and 104 transitions. [2020-11-07 05:21:36,519 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-07 05:21:36,519 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 104 transitions. [2020-11-07 05:21:36,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-11-07 05:21:36,521 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:21:36,523 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 05:21:36,523 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-07 05:21:36,524 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:21:36,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:21:36,524 INFO L82 PathProgramCache]: Analyzing trace with hash -1283941233, now seen corresponding path program 1 times [2020-11-07 05:21:36,524 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:21:36,525 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [339351847] [2020-11-07 05:21:36,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:21:36,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:21:36,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:21:36,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:21:36,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-11-07 05:21:36,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:21:36,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-11-07 05:21:36,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:21:36,729 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-11-07 05:21:36,730 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [339351847] [2020-11-07 05:21:36,730 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 05:21:36,730 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-07 05:21:36,731 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029284193] [2020-11-07 05:21:36,731 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-07 05:21:36,731 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 05:21:36,732 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-07 05:21:36,732 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-07 05:21:36,732 INFO L87 Difference]: Start difference. First operand 99 states and 104 transitions. Second operand 6 states. [2020-11-07 05:21:36,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 05:21:36,956 INFO L93 Difference]: Finished difference Result 106 states and 113 transitions. [2020-11-07 05:21:36,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-07 05:21:36,956 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 69 [2020-11-07 05:21:36,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 05:21:36,957 INFO L225 Difference]: With dead ends: 106 [2020-11-07 05:21:36,957 INFO L226 Difference]: Without dead ends: 0 [2020-11-07 05:21:36,959 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-11-07 05:21:36,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-07 05:21:36,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-07 05:21:36,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-07 05:21:36,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-07 05:21:36,960 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 69 [2020-11-07 05:21:36,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 05:21:36,960 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-07 05:21:36,960 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-07 05:21:36,960 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-07 05:21:36,961 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-07 05:21:36,961 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-07 05:21:36,963 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-07 05:21:38,099 INFO L269 CegarLoopResult]: At program point reach_errorEXIT(line 12) the Hoare annotation is: true [2020-11-07 05:21:38,100 INFO L269 CegarLoopResult]: At program point reach_errorENTRY(line 12) the Hoare annotation is: true [2020-11-07 05:21:38,100 INFO L269 CegarLoopResult]: At program point L12-1(line 12) the Hoare annotation is: true [2020-11-07 05:21:38,100 INFO L269 CegarLoopResult]: At program point L12-2(line 12) the Hoare annotation is: true [2020-11-07 05:21:38,100 INFO L269 CegarLoopResult]: At program point L12-3(line 12) the Hoare annotation is: true [2020-11-07 05:21:38,100 INFO L269 CegarLoopResult]: At program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) the Hoare annotation is: true [2020-11-07 05:21:38,101 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$.base)|)) [2020-11-07 05:21:38,101 INFO L269 CegarLoopResult]: At program point dll_update_atEXIT(lines 617 623) the Hoare annotation is: true [2020-11-07 05:21:38,101 INFO L262 CegarLoopResult]: At program point L620(line 620) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|)) [2020-11-07 05:21:38,101 INFO L262 CegarLoopResult]: At program point L619(line 619) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|)) [2020-11-07 05:21:38,101 INFO L262 CegarLoopResult]: At program point L620-1(line 620) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|)) [2020-11-07 05:21:38,102 INFO L262 CegarLoopResult]: At program point L619-1(line 619) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|)) [2020-11-07 05:21:38,102 INFO L262 CegarLoopResult]: At program point L620-2(line 620) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|)) [2020-11-07 05:21:38,102 INFO L262 CegarLoopResult]: At program point L617(lines 617 623) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|)) [2020-11-07 05:21:38,102 INFO L262 CegarLoopResult]: At program point L619-2(line 619) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|)) [2020-11-07 05:21:38,102 INFO L262 CegarLoopResult]: At program point L617-1(lines 617 623) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|)) [2020-11-07 05:21:38,103 INFO L262 CegarLoopResult]: At program point L618-2(lines 618 621) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|)) [2020-11-07 05:21:38,103 INFO L262 CegarLoopResult]: At program point L618-3(lines 618 621) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|)) [2020-11-07 05:21:38,103 INFO L269 CegarLoopResult]: At program point dll_update_atFINAL(lines 617 623) the Hoare annotation is: true [2020-11-07 05:21:38,103 INFO L262 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2020-11-07 05:21:38,103 INFO L269 CegarLoopResult]: At program point L-1-1(line -1) the Hoare annotation is: true [2020-11-07 05:21:38,103 INFO L269 CegarLoopResult]: At program point ULTIMATE.initFINAL(line 12) the Hoare annotation is: true [2020-11-07 05:21:38,104 INFO L269 CegarLoopResult]: At program point L12(line 12) the Hoare annotation is: true [2020-11-07 05:21:38,104 INFO L269 CegarLoopResult]: At program point L12-1(line 12) the Hoare annotation is: true [2020-11-07 05:21:38,104 INFO L269 CegarLoopResult]: At program point L12-2(line 12) the Hoare annotation is: true [2020-11-07 05:21:38,104 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 05:21:38,104 INFO L269 CegarLoopResult]: At program point L12-3(line 12) the Hoare annotation is: true [2020-11-07 05:21:38,104 INFO L269 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2020-11-07 05:21:38,104 INFO L269 CegarLoopResult]: At program point myexitENTRY(lines 572 574) the Hoare annotation is: true [2020-11-07 05:21:38,105 INFO L269 CegarLoopResult]: At program point L573(line 573) the Hoare annotation is: true [2020-11-07 05:21:38,105 INFO L266 CegarLoopResult]: For program point myexitEXIT(lines 572 574) no Hoare annotation was computed. [2020-11-07 05:21:38,105 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|)) [2020-11-07 05:21:38,105 INFO L262 CegarLoopResult]: At program point L599(line 599) the Hoare annotation is: (and (not (= dll_create_~new_head~0.base 0)) (= |dll_create_#t~malloc6.offset| 0) (= dll_create_~new_head~0.offset 0) (not (= 0 dll_create_~head~0.base))) [2020-11-07 05:21:38,105 INFO L262 CegarLoopResult]: At program point L599-1(line 599) the Hoare annotation is: (and (not (= dll_create_~new_head~0.base 0)) (= |dll_create_#t~malloc6.offset| 0) (= dll_create_~new_head~0.offset 0) (not (= 0 dll_create_~head~0.base))) [2020-11-07 05:21:38,106 INFO L262 CegarLoopResult]: At program point dll_createFINAL(lines 585 602) the Hoare annotation is: (or (and (not (= dll_create_~new_head~0.base 0)) (= |dll_create_#t~malloc6.offset| 0) (= dll_create_~new_head~0.offset 0) (not (= 0 dll_create_~head~0.base))) (and (<= |dll_create_#in~len| (+ dll_create_~len 1)) (<= |dll_create_#in~len| 1))) [2020-11-07 05:21:38,106 INFO L262 CegarLoopResult]: At program point L599-2(line 599) the Hoare annotation is: (and (not (= dll_create_~new_head~0.base 0)) (= |dll_create_#t~malloc6.offset| 0) (= dll_create_~new_head~0.offset 0) (not (= 0 dll_create_~head~0.base))) [2020-11-07 05:21:38,106 INFO L262 CegarLoopResult]: At program point L595(lines 595 597) the Hoare annotation is: (let ((.cse0 (not (= dll_create_~new_head~0.base 0))) (.cse1 (= |dll_create_#t~malloc6.offset| 0)) (.cse2 (= dll_create_~new_head~0.offset 0))) (or (and .cse0 .cse1 .cse2 (not (= 0 dll_create_~head~0.base))) (and .cse0 (= dll_create_~len |dll_create_#in~len|) .cse1 .cse2))) [2020-11-07 05:21:38,106 INFO L262 CegarLoopResult]: At program point L593(line 593) the Hoare annotation is: (let ((.cse0 (not (= dll_create_~new_head~0.base 0))) (.cse1 (= |dll_create_#t~malloc6.offset| 0)) (.cse2 (= dll_create_~new_head~0.offset 0))) (or (and .cse0 .cse1 .cse2 (not (= 0 dll_create_~head~0.base))) (and .cse0 (= dll_create_~len |dll_create_#in~len|) .cse1 .cse2))) [2020-11-07 05:21:38,107 INFO L262 CegarLoopResult]: At program point L589(lines 589 591) the Hoare annotation is: (let ((.cse0 (= |dll_create_#t~malloc6.offset| 0)) (.cse1 (= dll_create_~new_head~0.offset 0))) (or (and (= dll_create_~len |dll_create_#in~len|) .cse0 .cse1) (and .cse0 .cse1 (not (= 0 dll_create_~head~0.base))))) [2020-11-07 05:21:38,107 INFO L262 CegarLoopResult]: At program point L589-1(lines 589 591) the Hoare annotation is: (let ((.cse0 (not (= dll_create_~new_head~0.base 0))) (.cse1 (= |dll_create_#t~malloc6.offset| 0)) (.cse2 (= dll_create_~new_head~0.offset 0))) (or (and .cse0 .cse1 .cse2 (not (= 0 dll_create_~head~0.base))) (and .cse0 (= dll_create_~len |dll_create_#in~len|) .cse1 .cse2))) [2020-11-07 05:21:38,107 INFO L262 CegarLoopResult]: At program point L585(lines 585 602) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= dll_create_~len |dll_create_#in~len|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#valid)| |#valid|)) [2020-11-07 05:21:38,107 INFO L262 CegarLoopResult]: At program point L587-2(lines 587 600) the Hoare annotation is: (or (and (not (= dll_create_~new_head~0.base 0)) (= |dll_create_#t~malloc6.offset| 0) (= dll_create_~new_head~0.offset 0) (not (= 0 dll_create_~head~0.base))) (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= dll_create_~len |dll_create_#in~len|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#valid)| |#valid|))) [2020-11-07 05:21:38,107 INFO L262 CegarLoopResult]: At program point L587-3(lines 587 600) the Hoare annotation is: (or (and (not (= dll_create_~new_head~0.base 0)) (= |dll_create_#t~malloc6.offset| 0) (= dll_create_~new_head~0.offset 0) (not (= 0 dll_create_~head~0.base))) (and (<= |dll_create_#in~len| (+ dll_create_~len 1)) (<= |dll_create_#in~len| 1))) [2020-11-07 05:21:38,108 INFO L262 CegarLoopResult]: At program point dll_createEXIT(lines 585 602) the Hoare annotation is: (or (and (not (= dll_create_~new_head~0.base 0)) (= |dll_create_#t~malloc6.offset| 0) (= dll_create_~new_head~0.offset 0) (not (= 0 dll_create_~head~0.base))) (and (<= |dll_create_#in~len| (+ dll_create_~len 1)) (<= |dll_create_#in~len| 1))) [2020-11-07 05:21:38,108 INFO L262 CegarLoopResult]: At program point L596(line 596) the Hoare annotation is: (let ((.cse0 (not (= dll_create_~new_head~0.base 0))) (.cse1 (= |dll_create_#t~malloc6.offset| 0)) (.cse2 (= dll_create_~new_head~0.offset 0))) (or (and .cse0 .cse1 .cse2 (not (= 0 dll_create_~head~0.base))) (and .cse0 (= dll_create_~len |dll_create_#in~len|) .cse1 .cse2))) [2020-11-07 05:21:38,108 INFO L262 CegarLoopResult]: At program point L594(lines 587 600) the Hoare annotation is: (let ((.cse0 (not (= dll_create_~new_head~0.base 0))) (.cse1 (= |dll_create_#t~malloc6.offset| 0)) (.cse2 (= dll_create_~new_head~0.offset 0))) (or (and .cse0 .cse1 .cse2 (not (= 0 dll_create_~head~0.base))) (and .cse0 (= dll_create_~len |dll_create_#in~len|) .cse1 .cse2))) [2020-11-07 05:21:38,108 INFO L262 CegarLoopResult]: At program point L592(line 592) the Hoare annotation is: (let ((.cse0 (not (= dll_create_~new_head~0.base 0))) (.cse1 (= |dll_create_#t~malloc6.offset| 0)) (.cse2 (= dll_create_~new_head~0.offset 0))) (or (and .cse0 .cse1 .cse2 (not (= 0 dll_create_~head~0.base))) (and .cse0 (= dll_create_~len |dll_create_#in~len|) .cse1 .cse2))) [2020-11-07 05:21:38,109 INFO L269 CegarLoopResult]: At program point L590(line 590) the Hoare annotation is: true [2020-11-07 05:21:38,109 INFO L262 CegarLoopResult]: At program point L588(line 588) the Hoare annotation is: (or (and (not (= dll_create_~new_head~0.base 0)) (= |dll_create_#t~malloc6.offset| 0) (= dll_create_~new_head~0.offset 0) (not (= 0 dll_create_~head~0.base))) (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= dll_create_~len |dll_create_#in~len|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#valid)| |#valid|))) [2020-11-07 05:21:38,109 INFO L262 CegarLoopResult]: At program point L588-1(line 588) the Hoare annotation is: (let ((.cse0 (= |dll_create_#t~malloc6.offset| 0))) (or (and (= dll_create_~len |dll_create_#in~len|) .cse0) (and (not (= dll_create_~new_head~0.base 0)) .cse0 (= dll_create_~new_head~0.offset 0) (not (= 0 dll_create_~head~0.base))))) [2020-11-07 05:21:38,109 INFO L262 CegarLoopResult]: At program point L586(line 586) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= dll_create_~len |dll_create_#in~len|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#valid)| |#valid|)) [2020-11-07 05:21:38,109 INFO L266 CegarLoopResult]: For program point __bswap_32ENTRY(lines 74 78) no Hoare annotation was computed. [2020-11-07 05:21:38,109 INFO L266 CegarLoopResult]: For program point L77(line 77) no Hoare annotation was computed. [2020-11-07 05:21:38,110 INFO L266 CegarLoopResult]: For program point L77-1(line 77) no Hoare annotation was computed. [2020-11-07 05:21:38,110 INFO L266 CegarLoopResult]: For program point __bswap_32FINAL(lines 74 78) no Hoare annotation was computed. [2020-11-07 05:21:38,110 INFO L266 CegarLoopResult]: For program point __bswap_32EXIT(lines 74 78) no Hoare annotation was computed. [2020-11-07 05:21:38,110 INFO L266 CegarLoopResult]: For program point __bswap_64ENTRY(lines 79 83) no Hoare annotation was computed. [2020-11-07 05:21:38,110 INFO L266 CegarLoopResult]: For program point L82-1(line 82) no Hoare annotation was computed. [2020-11-07 05:21:38,110 INFO L266 CegarLoopResult]: For program point __bswap_64FINAL(lines 79 83) no Hoare annotation was computed. [2020-11-07 05:21:38,110 INFO L266 CegarLoopResult]: For program point __bswap_64EXIT(lines 79 83) no Hoare annotation was computed. [2020-11-07 05:21:38,111 INFO L266 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-11-07 05:21:38,111 INFO L269 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2020-11-07 05:21:38,111 INFO L269 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-11-07 05:21:38,111 INFO L269 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-11-07 05:21:38,111 INFO L269 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2020-11-07 05:21:38,111 INFO L269 CegarLoopResult]: At program point L611-2(lines 611 614) the Hoare annotation is: true [2020-11-07 05:21:38,111 INFO L269 CegarLoopResult]: At program point L611-3(lines 611 614) the Hoare annotation is: true [2020-11-07 05:21:38,112 INFO L269 CegarLoopResult]: At program point dll_get_data_atFINAL(lines 610 616) the Hoare annotation is: true [2020-11-07 05:21:38,112 INFO L269 CegarLoopResult]: At program point dll_get_data_atENTRY(lines 610 616) the Hoare annotation is: true [2020-11-07 05:21:38,112 INFO L269 CegarLoopResult]: At program point L615(line 615) the Hoare annotation is: true [2020-11-07 05:21:38,112 INFO L269 CegarLoopResult]: At program point L615-1(line 615) the Hoare annotation is: true [2020-11-07 05:21:38,112 INFO L269 CegarLoopResult]: At program point L613(line 613) the Hoare annotation is: true [2020-11-07 05:21:38,112 INFO L269 CegarLoopResult]: At program point L612(line 612) the Hoare annotation is: true [2020-11-07 05:21:38,112 INFO L269 CegarLoopResult]: At program point L613-1(line 613) the Hoare annotation is: true [2020-11-07 05:21:38,113 INFO L269 CegarLoopResult]: At program point L612-1(line 612) the Hoare annotation is: true [2020-11-07 05:21:38,113 INFO L269 CegarLoopResult]: At program point L613-2(line 613) the Hoare annotation is: true [2020-11-07 05:21:38,113 INFO L269 CegarLoopResult]: At program point L610(lines 610 616) the Hoare annotation is: true [2020-11-07 05:21:38,113 INFO L269 CegarLoopResult]: At program point L612-2(line 612) the Hoare annotation is: true [2020-11-07 05:21:38,113 INFO L269 CegarLoopResult]: At program point dll_get_data_atEXIT(lines 610 616) the Hoare annotation is: true [2020-11-07 05:21:38,113 INFO L262 CegarLoopResult]: At program point L634(line 634) the Hoare annotation is: false [2020-11-07 05:21:38,113 INFO L262 CegarLoopResult]: At program point mainEXIT(lines 624 643) the Hoare annotation is: (= main_~len~0 2) [2020-11-07 05:21:38,114 INFO L262 CegarLoopResult]: At program point L630(line 630) the Hoare annotation is: (= main_~len~0 2) [2020-11-07 05:21:38,114 INFO L262 CegarLoopResult]: At program point L626(line 626) 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$.base)|) (= |old(#valid)| |#valid|)) [2020-11-07 05:21:38,114 INFO L262 CegarLoopResult]: At program point L639(line 639) the Hoare annotation is: (= main_~len~0 2) [2020-11-07 05:21:38,114 INFO L262 CegarLoopResult]: At program point L635(line 635) the Hoare annotation is: false [2020-11-07 05:21:38,114 INFO L262 CegarLoopResult]: At program point L635-1(line 635) the Hoare annotation is: false [2020-11-07 05:21:38,114 INFO L262 CegarLoopResult]: At program point L635-2(lines 635 637) the Hoare annotation is: false [2020-11-07 05:21:38,114 INFO L262 CegarLoopResult]: At program point L635-3(line 635) the Hoare annotation is: false [2020-11-07 05:21:38,115 INFO L262 CegarLoopResult]: At program point L631(line 631) the Hoare annotation is: (= main_~len~0 2) [2020-11-07 05:21:38,115 INFO L262 CegarLoopResult]: At program point L635-4(line 635) the Hoare annotation is: false [2020-11-07 05:21:38,115 INFO L262 CegarLoopResult]: At program point L631-1(lines 629 632) the Hoare annotation is: (= main_~len~0 2) [2020-11-07 05:21:38,115 INFO L262 CegarLoopResult]: At program point L627(line 627) the Hoare annotation is: (and (= main_~len~0 2) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#valid)| |#valid|)) [2020-11-07 05:21:38,115 INFO L262 CegarLoopResult]: At program point L627-1(line 627) the Hoare annotation is: (= main_~len~0 2) [2020-11-07 05:21:38,115 INFO L262 CegarLoopResult]: At program point L627-2(line 627) the Hoare annotation is: (= main_~len~0 2) [2020-11-07 05:21:38,115 INFO L262 CegarLoopResult]: At program point L636(lines 624 643) the Hoare annotation is: false [2020-11-07 05:21:38,116 INFO L262 CegarLoopResult]: At program point L628(line 628) the Hoare annotation is: (= main_~len~0 2) [2020-11-07 05:21:38,116 INFO L262 CegarLoopResult]: At program point mainFINAL(lines 624 643) the Hoare annotation is: (= main_~len~0 2) [2020-11-07 05:21:38,116 INFO L262 CegarLoopResult]: At program point L641(line 641) the Hoare annotation is: false [2020-11-07 05:21:38,116 INFO L262 CegarLoopResult]: At program point mainENTRY(lines 624 643) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#valid)| |#valid|)) [2020-11-07 05:21:38,116 INFO L262 CegarLoopResult]: At program point L633-2(lines 633 638) the Hoare annotation is: false [2020-11-07 05:21:38,116 INFO L262 CegarLoopResult]: At program point L633-3(line 633) the Hoare annotation is: false [2020-11-07 05:21:38,117 INFO L262 CegarLoopResult]: At program point L629(line 629) the Hoare annotation is: (= main_~len~0 2) [2020-11-07 05:21:38,117 INFO L262 CegarLoopResult]: At program point L633-4(line 633) the Hoare annotation is: false [2020-11-07 05:21:38,117 INFO L262 CegarLoopResult]: At program point L633-5(lines 633 638) the Hoare annotation is: (and (= main_~len~0 2) (<= 1 main_~i~0)) [2020-11-07 05:21:38,117 INFO L262 CegarLoopResult]: At program point L633-6(lines 633 638) the Hoare annotation is: (= main_~len~0 2) [2020-11-07 05:21:38,117 INFO L262 CegarLoopResult]: At program point L629-3(line 629) the Hoare annotation is: (= main_~len~0 2) [2020-11-07 05:21:38,117 INFO L262 CegarLoopResult]: At program point L629-4(line 629) the Hoare annotation is: (= main_~len~0 2) [2020-11-07 05:21:38,118 INFO L262 CegarLoopResult]: At program point L629-5(lines 629 632) the Hoare annotation is: (= main_~len~0 2) [2020-11-07 05:21:38,118 INFO L262 CegarLoopResult]: At program point L629-6(lines 629 632) the Hoare annotation is: (= main_~len~0 2) [2020-11-07 05:21:38,118 INFO L262 CegarLoopResult]: At program point L642(line 642) the Hoare annotation is: false [2020-11-07 05:21:38,118 INFO L269 CegarLoopResult]: At program point dll_destroyEXIT(lines 603 609) the Hoare annotation is: true [2020-11-07 05:21:38,118 INFO L269 CegarLoopResult]: At program point L606(line 606) the Hoare annotation is: true [2020-11-07 05:21:38,118 INFO L269 CegarLoopResult]: At program point L605(line 605) the Hoare annotation is: true [2020-11-07 05:21:38,118 INFO L269 CegarLoopResult]: At program point L606-1(line 606) the Hoare annotation is: true [2020-11-07 05:21:38,119 INFO L269 CegarLoopResult]: At program point L605-1(line 605) the Hoare annotation is: true [2020-11-07 05:21:38,119 INFO L262 CegarLoopResult]: At program point dll_destroyENTRY(lines 603 609) the Hoare annotation is: (= |old(#valid)| |#valid|) [2020-11-07 05:21:38,119 INFO L269 CegarLoopResult]: At program point L605-2(line 605) the Hoare annotation is: true [2020-11-07 05:21:38,119 INFO L269 CegarLoopResult]: At program point L604-2(lines 604 608) the Hoare annotation is: true [2020-11-07 05:21:38,119 INFO L269 CegarLoopResult]: At program point L604-3(lines 603 609) the Hoare annotation is: true [2020-11-07 05:21:38,119 INFO L266 CegarLoopResult]: For program point L577(lines 577 579) no Hoare annotation was computed. [2020-11-07 05:21:38,119 INFO L266 CegarLoopResult]: For program point L576(line 576) no Hoare annotation was computed. [2020-11-07 05:21:38,120 INFO L266 CegarLoopResult]: For program point L577-1(lines 577 579) no Hoare annotation was computed. [2020-11-07 05:21:38,120 INFO L266 CegarLoopResult]: For program point L576-1(line 576) no Hoare annotation was computed. [2020-11-07 05:21:38,120 INFO L266 CegarLoopResult]: For program point node_createENTRY(lines 575 584) no Hoare annotation was computed. [2020-11-07 05:21:38,120 INFO L266 CegarLoopResult]: For program point node_createEXIT(lines 575 584) no Hoare annotation was computed. [2020-11-07 05:21:38,120 INFO L266 CegarLoopResult]: For program point node_createFINAL(lines 575 584) no Hoare annotation was computed. [2020-11-07 05:21:38,120 INFO L266 CegarLoopResult]: For program point L582(line 582) no Hoare annotation was computed. [2020-11-07 05:21:38,120 INFO L266 CegarLoopResult]: For program point L581(line 581) no Hoare annotation was computed. [2020-11-07 05:21:38,120 INFO L266 CegarLoopResult]: For program point L580(line 580) no Hoare annotation was computed. [2020-11-07 05:21:38,120 INFO L266 CegarLoopResult]: For program point L578(line 578) no Hoare annotation was computed. [2020-11-07 05:21:38,136 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-11-07 05:21:38,137 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-11-07 05:21:38,137 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-11-07 05:21:38,138 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-11-07 05:21:38,138 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-11-07 05:21:38,138 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-11-07 05:21:38,139 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-07 05:21:38,139 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-07 05:21:38,139 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-11-07 05:21:38,139 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-11-07 05:21:38,140 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-11-07 05:21:38,140 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-11-07 05:21:38,140 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-11-07 05:21:38,140 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-11-07 05:21:38,140 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-11-07 05:21:38,141 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-11-07 05:21:38,141 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-07 05:21:38,141 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-07 05:21:38,141 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-11-07 05:21:38,141 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-11-07 05:21:38,143 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-11-07 05:21:38,143 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-11-07 05:21:38,143 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-11-07 05:21:38,144 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-11-07 05:21:38,144 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-11-07 05:21:38,144 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-11-07 05:21:38,144 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-07 05:21:38,145 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-07 05:21:38,145 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-07 05:21:38,145 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-07 05:21:38,145 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-11-07 05:21:38,145 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-11-07 05:21:38,146 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-11-07 05:21:38,146 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-11-07 05:21:38,147 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-11-07 05:21:38,147 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-11-07 05:21:38,147 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-11-07 05:21:38,147 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-11-07 05:21:38,148 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-07 05:21:38,148 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-07 05:21:38,148 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-07 05:21:38,148 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-07 05:21:38,148 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-11-07 05:21:38,149 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-11-07 05:21:38,152 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 05:21:38 BoogieIcfgContainer [2020-11-07 05:21:38,152 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-07 05:21:38,155 INFO L168 Benchmark]: Toolchain (without parser) took 6463.56 ms. Allocated memory was 153.1 MB in the beginning and 186.6 MB in the end (delta: 33.6 MB). Free memory was 128.9 MB in the beginning and 134.6 MB in the end (delta: -5.7 MB). Peak memory consumption was 105.1 MB. Max. memory is 8.0 GB. [2020-11-07 05:21:38,156 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 153.1 MB. Free memory is still 126.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-07 05:21:38,157 INFO L168 Benchmark]: CACSL2BoogieTranslator took 625.04 ms. Allocated memory is still 153.1 MB. Free memory was 128.3 MB in the beginning and 105.6 MB in the end (delta: 22.7 MB). Peak memory consumption was 23.1 MB. Max. memory is 8.0 GB. [2020-11-07 05:21:38,158 INFO L168 Benchmark]: Boogie Preprocessor took 128.27 ms. Allocated memory is still 153.1 MB. Free memory was 105.4 MB in the beginning and 137.1 MB in the end (delta: -31.7 MB). Peak memory consumption was 7.4 MB. Max. memory is 8.0 GB. [2020-11-07 05:21:38,159 INFO L168 Benchmark]: RCFGBuilder took 1161.99 ms. Allocated memory is still 153.1 MB. Free memory was 136.6 MB in the beginning and 85.5 MB in the end (delta: 51.2 MB). Peak memory consumption was 51.4 MB. Max. memory is 8.0 GB. [2020-11-07 05:21:38,160 INFO L168 Benchmark]: TraceAbstraction took 4533.32 ms. Allocated memory was 153.1 MB in the beginning and 186.6 MB in the end (delta: 33.6 MB). Free memory was 84.9 MB in the beginning and 134.6 MB in the end (delta: -49.7 MB). Peak memory consumption was 61.0 MB. Max. memory is 8.0 GB. [2020-11-07 05:21:38,164 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 153.1 MB. Free memory is still 126.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 625.04 ms. Allocated memory is still 153.1 MB. Free memory was 128.3 MB in the beginning and 105.6 MB in the end (delta: 22.7 MB). Peak memory consumption was 23.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 128.27 ms. Allocated memory is still 153.1 MB. Free memory was 105.4 MB in the beginning and 137.1 MB in the end (delta: -31.7 MB). Peak memory consumption was 7.4 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1161.99 ms. Allocated memory is still 153.1 MB. Free memory was 136.6 MB in the beginning and 85.5 MB in the end (delta: 51.2 MB). Peak memory consumption was 51.4 MB. Max. memory is 8.0 GB. * TraceAbstraction took 4533.32 ms. Allocated memory was 153.1 MB in the beginning and 186.6 MB in the end (delta: 33.6 MB). Free memory was 84.9 MB in the beginning and 134.6 MB in the end (delta: -49.7 MB). Peak memory consumption was 61.0 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$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 - 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_$Pointer$ - 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: 573]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 629]: Loop Invariant Derived loop invariant: len == 2 - InvariantResult [Line: 604]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 633]: Loop Invariant Derived loop invariant: len == 2 && 1 <= i - InvariantResult [Line: 618]: Loop Invariant [2020-11-07 05:21:38,176 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-11-07 05:21:38,176 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-11-07 05:21:38,176 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-11-07 05:21:38,176 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-11-07 05:21:38,177 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-11-07 05:21:38,177 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-11-07 05:21:38,177 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-07 05:21:38,177 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-07 05:21:38,177 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-11-07 05:21:38,177 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-11-07 05:21:38,178 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-11-07 05:21:38,178 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-11-07 05:21:38,178 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-11-07 05:21:38,178 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-11-07 05:21:38,179 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-11-07 05:21:38,179 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-11-07 05:21:38,179 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-07 05:21:38,179 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-07 05:21:38,179 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-11-07 05:21:38,179 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 [2020-11-07 05:21:38,180 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-11-07 05:21:38,180 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-11-07 05:21:38,180 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-11-07 05:21:38,181 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-11-07 05:21:38,181 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-11-07 05:21:38,181 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-11-07 05:21:38,181 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-07 05:21:38,181 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-07 05:21:38,182 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-07 05:21:38,182 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-07 05:21:38,182 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-11-07 05:21:38,182 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-11-07 05:21:38,183 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-11-07 05:21:38,183 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-11-07 05:21:38,183 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-11-07 05:21:38,183 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-11-07 05:21:38,183 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-11-07 05:21:38,184 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-11-07 05:21:38,184 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-07 05:21:38,184 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-07 05:21:38,184 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-07 05:21:38,184 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-07 05:21:38,185 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-11-07 05:21:38,185 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ Derived loop invariant: (((!(new_head == 0) && malloc(sizeof(struct node)) == 0) && new_head == 0) && !(0 == head)) || (((((#memory_$Pointer$ == \old(#memory_$Pointer$) && \old(unknown-#length-unknown) == unknown-#length-unknown) && unknown-#memory_int-unknown == \old(unknown-#memory_int-unknown)) && len == \old(len)) && #memory_$Pointer$ == \old(#memory_$Pointer$)) && \old(\valid) == \valid) - InvariantResult [Line: 624]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 611]: Loop Invariant Derived loop invariant: 1 - ProcedureContractResult [Line: 12]: Procedure Contract for reach_error Derived contract for procedure reach_error: 1 - ProcedureContractResult [Line: 617]: Procedure Contract for dll_update_at Derived contract for procedure dll_update_at: 1 - ProcedureContractResult [Line: 585]: Procedure Contract for dll_create Derived contract for procedure dll_create: (((!(new_head == 0) && malloc(sizeof(struct node)) == 0) && new_head == 0) && !(0 == head)) || (\old(len) <= len + 1 && \old(len) <= 1) - ProcedureContractResult [Line: 610]: Procedure Contract for dll_get_data_at Derived contract for procedure dll_get_data_at: 1 - ProcedureContractResult [Line: 624]: Procedure Contract for main Derived contract for procedure main: len == 2 - ProcedureContractResult [Line: 603]: Procedure Contract for dll_destroy Derived contract for procedure dll_destroy: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 12 procedures, 130 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.2s, OverallIterations: 4, TraceHistogramMax: 2, AutomataDifference: 1.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 302 SDtfs, 418 SDslu, 641 SDs, 0 SdLazy, 910 SolverSat, 58 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 69 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=108occurred 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: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 22 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 108 LocationsWithAnnotation, 231 PreInvPairs, 306 NumberOfFragments, 776 HoareAnnotationTreeSize, 231 FomulaSimplifications, 125 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 108 FomulaSimplificationsInter, 691 FormulaSimplificationTreeSizeReductionInter, 0.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 237 NumberOfCodeBlocks, 237 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 233 ConstructedInterpolants, 0 QuantifiedInterpolants, 30618 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 22/29 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...