/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/ldv-sets/test_add-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-07 05:21:21,920 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-07 05:21:21,924 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-07 05:21:21,986 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-07 05:21:21,987 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-07 05:21:21,992 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-07 05:21:21,996 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-07 05:21:22,004 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-07 05:21:22,010 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-07 05:21:22,016 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-07 05:21:22,018 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-07 05:21:22,020 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-07 05:21:22,021 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-07 05:21:22,024 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-07 05:21:22,027 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-07 05:21:22,029 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-07 05:21:22,031 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-07 05:21:22,035 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-07 05:21:22,042 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-07 05:21:22,050 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-07 05:21:22,052 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-07 05:21:22,054 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-07 05:21:22,055 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-07 05:21:22,058 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-07 05:21:22,068 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-07 05:21:22,068 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-07 05:21:22,069 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-07 05:21:22,071 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-07 05:21:22,072 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-07 05:21:22,073 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-07 05:21:22,073 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-07 05:21:22,074 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-07 05:21:22,077 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-07 05:21:22,078 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-07 05:21:22,079 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-07 05:21:22,079 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-07 05:21:22,080 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-07 05:21:22,081 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-07 05:21:22,081 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-07 05:21:22,083 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-07 05:21:22,084 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-07 05:21:22,085 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 05:21:22,140 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-07 05:21:22,141 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-07 05:21:22,146 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-07 05:21:22,147 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-07 05:21:22,147 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-07 05:21:22,147 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-07 05:21:22,148 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-07 05:21:22,148 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-07 05:21:22,148 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-07 05:21:22,148 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-07 05:21:22,150 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-07 05:21:22,150 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-07 05:21:22,150 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-07 05:21:22,151 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-07 05:21:22,151 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-07 05:21:22,151 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-11-07 05:21:22,152 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-07 05:21:22,152 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-07 05:21:22,152 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 05:21:22,152 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-07 05:21:22,153 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-11-07 05:21:22,153 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-07 05:21:22,153 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-11-07 05:21:22,581 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-07 05:21:22,635 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-07 05:21:22,638 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-07 05:21:22,640 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-07 05:21:22,641 INFO L275 PluginConnector]: CDTParser initialized [2020-11-07 05:21:22,642 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-sets/test_add-1.i [2020-11-07 05:21:22,735 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c54c2c64e/3387d121221b430cb54b7a5c727c65ab/FLAG871075f36 [2020-11-07 05:21:23,425 INFO L306 CDTParser]: Found 1 translation units. [2020-11-07 05:21:23,426 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-sets/test_add-1.i [2020-11-07 05:21:23,448 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c54c2c64e/3387d121221b430cb54b7a5c727c65ab/FLAG871075f36 [2020-11-07 05:21:23,715 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c54c2c64e/3387d121221b430cb54b7a5c727c65ab [2020-11-07 05:21:23,718 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-07 05:21:23,725 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-07 05:21:23,731 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-07 05:21:23,731 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-07 05:21:23,736 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-07 05:21:23,737 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 05:21:23" (1/1) ... [2020-11-07 05:21:23,740 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a4aacf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:21:23, skipping insertion in model container [2020-11-07 05:21:23,741 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 05:21:23" (1/1) ... [2020-11-07 05:21:23,752 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-07 05:21:23,833 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-07 05:21:24,206 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 05:21:24,233 INFO L203 MainTranslator]: Completed pre-run [2020-11-07 05:21:24,359 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 05:21:24,500 INFO L208 MainTranslator]: Completed translation [2020-11-07 05:21:24,500 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:21:24 WrapperNode [2020-11-07 05:21:24,501 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-07 05:21:24,502 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-07 05:21:24,503 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-07 05:21:24,503 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-07 05:21:24,519 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:21:24" (1/1) ... [2020-11-07 05:21:24,520 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:21:24" (1/1) ... [2020-11-07 05:21:24,538 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:21:24" (1/1) ... [2020-11-07 05:21:24,538 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:21:24" (1/1) ... [2020-11-07 05:21:24,573 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:21:24" (1/1) ... [2020-11-07 05:21:24,581 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:21:24" (1/1) ... [2020-11-07 05:21:24,591 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:21:24" (1/1) ... [2020-11-07 05:21:24,605 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-07 05:21:24,606 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-07 05:21:24,607 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-07 05:21:24,607 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-07 05:21:24,607 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:21:24" (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 05:21:24,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-07 05:21:24,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-07 05:21:24,703 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-11-07 05:21:24,703 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-11-07 05:21:24,704 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-07 05:21:24,704 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-11-07 05:21:24,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-11-07 05:21:24,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_successful_malloc [2020-11-07 05:21:24,704 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2020-11-07 05:21:24,704 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2020-11-07 05:21:24,705 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2020-11-07 05:21:24,705 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2020-11-07 05:21:24,705 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2020-11-07 05:21:24,705 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2020-11-07 05:21:24,705 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_empty [2020-11-07 05:21:24,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_set [2020-11-07 05:21:24,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2020-11-07 05:21:24,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_del [2020-11-07 05:21:24,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_in_set [2020-11-07 05:21:24,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_empty [2020-11-07 05:21:24,706 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2020-11-07 05:21:24,707 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-07 05:21:24,707 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-11-07 05:21:24,707 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-11-07 05:21:24,707 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-11-07 05:21:24,707 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-11-07 05:21:24,708 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-11-07 05:21:24,708 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-11-07 05:21:24,708 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-11-07 05:21:24,708 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-11-07 05:21:24,708 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-11-07 05:21:24,708 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-11-07 05:21:24,709 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-11-07 05:21:24,709 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-11-07 05:21:24,709 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-11-07 05:21:24,709 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-11-07 05:21:24,709 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-11-07 05:21:24,709 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-11-07 05:21:24,709 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-11-07 05:21:24,710 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-11-07 05:21:24,710 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-11-07 05:21:24,710 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-11-07 05:21:24,710 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-11-07 05:21:24,710 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-11-07 05:21:24,710 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-11-07 05:21:24,710 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-11-07 05:21:24,711 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-11-07 05:21:24,711 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-11-07 05:21:24,711 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-11-07 05:21:24,711 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-11-07 05:21:24,711 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-11-07 05:21:24,711 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-11-07 05:21:24,711 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-11-07 05:21:24,712 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-11-07 05:21:24,712 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-11-07 05:21:24,712 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-11-07 05:21:24,712 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-11-07 05:21:24,712 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-11-07 05:21:24,712 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-11-07 05:21:24,712 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-11-07 05:21:24,713 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-11-07 05:21:24,713 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-11-07 05:21:24,713 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-11-07 05:21:24,713 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-11-07 05:21:24,713 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-11-07 05:21:24,713 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-11-07 05:21:24,714 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-11-07 05:21:24,714 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-11-07 05:21:24,714 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-11-07 05:21:24,714 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-11-07 05:21:24,714 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-11-07 05:21:24,714 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-11-07 05:21:24,714 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-11-07 05:21:24,715 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-11-07 05:21:24,715 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-11-07 05:21:24,715 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-11-07 05:21:24,715 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-11-07 05:21:24,715 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-11-07 05:21:24,715 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-11-07 05:21:24,715 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-11-07 05:21:24,716 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-11-07 05:21:24,716 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-11-07 05:21:24,716 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-07 05:21:24,716 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-11-07 05:21:24,716 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-11-07 05:21:24,716 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-11-07 05:21:24,717 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-11-07 05:21:24,717 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-11-07 05:21:24,717 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-11-07 05:21:24,717 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-11-07 05:21:24,717 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-11-07 05:21:24,717 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-11-07 05:21:24,718 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-11-07 05:21:24,718 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-11-07 05:21:24,718 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-11-07 05:21:24,718 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-11-07 05:21:24,718 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-11-07 05:21:24,718 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-11-07 05:21:24,718 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-11-07 05:21:24,719 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-11-07 05:21:24,719 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-11-07 05:21:24,719 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-11-07 05:21:24,719 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-11-07 05:21:24,719 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-11-07 05:21:24,719 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-11-07 05:21:24,719 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-11-07 05:21:24,719 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-11-07 05:21:24,720 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-11-07 05:21:24,720 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-11-07 05:21:24,720 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-11-07 05:21:24,720 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-11-07 05:21:24,720 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-11-07 05:21:24,720 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-11-07 05:21:24,720 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-11-07 05:21:24,721 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-11-07 05:21:24,721 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-11-07 05:21:24,721 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-11-07 05:21:24,721 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-11-07 05:21:24,721 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-11-07 05:21:24,721 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-11-07 05:21:24,721 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-11-07 05:21:24,721 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-11-07 05:21:24,722 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-11-07 05:21:24,722 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-11-07 05:21:24,722 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-07 05:21:24,722 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-11-07 05:21:24,722 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-11-07 05:21:24,722 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-07 05:21:24,722 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-07 05:21:24,723 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-11-07 05:21:24,723 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-07 05:21:24,723 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-11-07 05:21:24,723 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-07 05:21:24,723 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_successful_malloc [2020-11-07 05:21:24,723 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2020-11-07 05:21:24,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-07 05:21:24,724 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2020-11-07 05:21:24,724 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2020-11-07 05:21:24,724 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2020-11-07 05:21:24,724 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-07 05:21:24,724 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2020-11-07 05:21:24,724 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2020-11-07 05:21:24,725 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_empty [2020-11-07 05:21:24,725 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_set [2020-11-07 05:21:24,725 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2020-11-07 05:21:24,725 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_del [2020-11-07 05:21:24,725 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_in_set [2020-11-07 05:21:24,725 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_empty [2020-11-07 05:21:24,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-07 05:21:24,726 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-07 05:21:24,726 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-07 05:21:24,726 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2020-11-07 05:21:24,726 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-07 05:21:24,726 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-07 05:21:24,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-07 05:21:24,727 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-11-07 05:21:24,727 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-07 05:21:25,665 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-07 05:21:25,666 INFO L298 CfgBuilder]: Removed 2 assume(true) statements. [2020-11-07 05:21:25,668 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 05:21:25 BoogieIcfgContainer [2020-11-07 05:21:25,668 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-07 05:21:25,671 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-07 05:21:25,671 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-07 05:21:25,674 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-07 05:21:25,675 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 05:21:23" (1/3) ... [2020-11-07 05:21:25,676 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61705a8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 05:21:25, skipping insertion in model container [2020-11-07 05:21:25,676 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:21:24" (2/3) ... [2020-11-07 05:21:25,676 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61705a8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 05:21:25, skipping insertion in model container [2020-11-07 05:21:25,677 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 05:21:25" (3/3) ... [2020-11-07 05:21:25,678 INFO L111 eAbstractionObserver]: Analyzing ICFG test_add-1.i [2020-11-07 05:21:25,696 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-07 05:21:25,732 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-07 05:21:25,745 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-07 05:21:25,771 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-07 05:21:25,772 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-07 05:21:25,772 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-11-07 05:21:25,772 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-07 05:21:25,772 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-07 05:21:25,772 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-07 05:21:25,773 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-07 05:21:25,773 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-07 05:21:25,791 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states. [2020-11-07 05:21:25,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-11-07 05:21:25,804 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:21:25,805 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-11-07 05:21:25,805 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:21:25,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:21:25,812 INFO L82 PathProgramCache]: Analyzing trace with hash 1115190987, now seen corresponding path program 1 times [2020-11-07 05:21:25,822 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:21:25,823 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [658847252] [2020-11-07 05:21:25,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:21:25,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:21:26,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:21:26,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:21:26,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-11-07 05:21:26,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:21:26,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 05:21:26,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:21:26,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-11-07 05:21:26,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:21:26,304 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-11-07 05:21:26,306 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [658847252] [2020-11-07 05:21:26,311 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 05:21:26,311 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-11-07 05:21:26,312 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677465003] [2020-11-07 05:21:26,318 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-07 05:21:26,319 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 05:21:26,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-07 05:21:26,344 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-07 05:21:26,347 INFO L87 Difference]: Start difference. First operand 105 states. Second operand 6 states. [2020-11-07 05:21:27,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 05:21:27,136 INFO L93 Difference]: Finished difference Result 195 states and 220 transitions. [2020-11-07 05:21:27,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-07 05:21:27,142 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 56 [2020-11-07 05:21:27,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 05:21:27,159 INFO L225 Difference]: With dead ends: 195 [2020-11-07 05:21:27,161 INFO L226 Difference]: Without dead ends: 100 [2020-11-07 05:21:27,169 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-11-07 05:21:27,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2020-11-07 05:21:27,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 93. [2020-11-07 05:21:27,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2020-11-07 05:21:27,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 97 transitions. [2020-11-07 05:21:27,262 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 97 transitions. Word has length 56 [2020-11-07 05:21:27,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 05:21:27,264 INFO L481 AbstractCegarLoop]: Abstraction has 93 states and 97 transitions. [2020-11-07 05:21:27,264 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-07 05:21:27,264 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 97 transitions. [2020-11-07 05:21:27,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-11-07 05:21:27,273 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:21:27,274 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-11-07 05:21:27,274 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-07 05:21:27,274 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:21:27,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:21:27,276 INFO L82 PathProgramCache]: Analyzing trace with hash -2061402926, now seen corresponding path program 1 times [2020-11-07 05:21:27,276 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:21:27,276 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1623193988] [2020-11-07 05:21:27,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:21:27,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:21:27,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:21:27,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:21:27,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-11-07 05:21:27,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:21:27,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 05:21:27,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:21:27,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-11-07 05:21:27,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:21:27,533 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-11-07 05:21:27,533 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1623193988] [2020-11-07 05:21:27,534 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 05:21:27,534 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-07 05:21:27,534 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896770960] [2020-11-07 05:21:27,536 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-07 05:21:27,536 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 05:21:27,536 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-07 05:21:27,537 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-07 05:21:27,537 INFO L87 Difference]: Start difference. First operand 93 states and 97 transitions. Second operand 6 states. [2020-11-07 05:21:28,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 05:21:28,042 INFO L93 Difference]: Finished difference Result 109 states and 114 transitions. [2020-11-07 05:21:28,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-07 05:21:28,043 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 59 [2020-11-07 05:21:28,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 05:21:28,045 INFO L225 Difference]: With dead ends: 109 [2020-11-07 05:21:28,046 INFO L226 Difference]: Without dead ends: 100 [2020-11-07 05:21:28,047 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-11-07 05:21:28,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2020-11-07 05:21:28,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 93. [2020-11-07 05:21:28,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2020-11-07 05:21:28,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 96 transitions. [2020-11-07 05:21:28,070 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 96 transitions. Word has length 59 [2020-11-07 05:21:28,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 05:21:28,070 INFO L481 AbstractCegarLoop]: Abstraction has 93 states and 96 transitions. [2020-11-07 05:21:28,070 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-07 05:21:28,071 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 96 transitions. [2020-11-07 05:21:28,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-11-07 05:21:28,073 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:21:28,073 INFO L422 BasicCegarLoop]: trace histogram [2, 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] [2020-11-07 05:21:28,073 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-07 05:21:28,073 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:21:28,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:21:28,074 INFO L82 PathProgramCache]: Analyzing trace with hash 1961317419, now seen corresponding path program 1 times [2020-11-07 05:21:28,074 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:21:28,075 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1403908070] [2020-11-07 05:21:28,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:21:28,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:21:28,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:21:28,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:21:28,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-11-07 05:21:28,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:21:28,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 05:21:28,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:21:28,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-11-07 05:21:28,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:21:28,557 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-07 05:21:28,557 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1403908070] [2020-11-07 05:21:28,558 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 05:21:28,558 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-11-07 05:21:28,558 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978288162] [2020-11-07 05:21:28,559 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-11-07 05:21:28,559 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 05:21:28,559 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-11-07 05:21:28,560 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2020-11-07 05:21:28,560 INFO L87 Difference]: Start difference. First operand 93 states and 96 transitions. Second operand 14 states. [2020-11-07 05:21:31,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 05:21:31,026 INFO L93 Difference]: Finished difference Result 188 states and 196 transitions. [2020-11-07 05:21:31,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2020-11-07 05:21:31,027 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 62 [2020-11-07 05:21:31,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 05:21:31,030 INFO L225 Difference]: With dead ends: 188 [2020-11-07 05:21:31,030 INFO L226 Difference]: Without dead ends: 110 [2020-11-07 05:21:31,032 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 299 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=371, Invalid=1111, Unknown=0, NotChecked=0, Total=1482 [2020-11-07 05:21:31,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2020-11-07 05:21:31,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 98. [2020-11-07 05:21:31,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2020-11-07 05:21:31,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 98 transitions. [2020-11-07 05:21:31,091 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 98 transitions. Word has length 62 [2020-11-07 05:21:31,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 05:21:31,093 INFO L481 AbstractCegarLoop]: Abstraction has 98 states and 98 transitions. [2020-11-07 05:21:31,094 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-11-07 05:21:31,094 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 98 transitions. [2020-11-07 05:21:31,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-11-07 05:21:31,105 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:21:31,106 INFO L422 BasicCegarLoop]: trace histogram [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, 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 05:21:31,107 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-07 05:21:31,107 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:21:31,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:21:31,108 INFO L82 PathProgramCache]: Analyzing trace with hash 1830296653, now seen corresponding path program 1 times [2020-11-07 05:21:31,109 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:21:31,109 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1081370853] [2020-11-07 05:21:31,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:21:31,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-07 05:21:31,194 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-07 05:21:31,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-07 05:21:31,250 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-07 05:21:31,316 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-11-07 05:21:31,316 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-07 05:21:31,316 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-07 05:21:31,374 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 52 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# [2020-11-07 05:21:31,376 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 54 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# [2020-11-07 05:21:31,406 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 05:21:31 BoogieIcfgContainer [2020-11-07 05:21:31,406 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-07 05:21:31,410 INFO L168 Benchmark]: Toolchain (without parser) took 7688.02 ms. Allocated memory was 156.2 MB in the beginning and 281.0 MB in the end (delta: 124.8 MB). Free memory was 131.3 MB in the beginning and 235.3 MB in the end (delta: -104.0 MB). Peak memory consumption was 21.6 MB. Max. memory is 8.0 GB. [2020-11-07 05:21:31,410 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 156.2 MB. Free memory is still 133.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-07 05:21:31,411 INFO L168 Benchmark]: CACSL2BoogieTranslator took 770.77 ms. Allocated memory is still 156.2 MB. Free memory was 130.6 MB in the beginning and 138.4 MB in the end (delta: -7.8 MB). Peak memory consumption was 31.0 MB. Max. memory is 8.0 GB. [2020-11-07 05:21:31,412 INFO L168 Benchmark]: Boogie Preprocessor took 103.33 ms. Allocated memory is still 156.2 MB. Free memory was 138.4 MB in the beginning and 135.3 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-11-07 05:21:31,413 INFO L168 Benchmark]: RCFGBuilder took 1062.13 ms. Allocated memory is still 156.2 MB. Free memory was 135.3 MB in the beginning and 73.9 MB in the end (delta: 61.3 MB). Peak memory consumption was 61.9 MB. Max. memory is 8.0 GB. [2020-11-07 05:21:31,414 INFO L168 Benchmark]: TraceAbstraction took 5735.91 ms. Allocated memory was 156.2 MB in the beginning and 281.0 MB in the end (delta: 124.8 MB). Free memory was 73.4 MB in the beginning and 235.3 MB in the end (delta: -161.9 MB). There was no memory consumed. Max. memory is 8.0 GB. [2020-11-07 05:21:31,418 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 156.2 MB. Free memory is still 133.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 770.77 ms. Allocated memory is still 156.2 MB. Free memory was 130.6 MB in the beginning and 138.4 MB in the end (delta: -7.8 MB). Peak memory consumption was 31.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 103.33 ms. Allocated memory is still 156.2 MB. Free memory was 138.4 MB in the beginning and 135.3 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1062.13 ms. Allocated memory is still 156.2 MB. Free memory was 135.3 MB in the beginning and 73.9 MB in the end (delta: 61.3 MB). Peak memory consumption was 61.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 5735.91 ms. Allocated memory was 156.2 MB in the beginning and 281.0 MB in the end (delta: 124.8 MB). Free memory was 73.4 MB in the beginning and 235.3 MB in the end (delta: -161.9 MB). There was no memory consumed. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 52 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 54 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 562]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L662] struct ldv_list_head s1 = { &(s1), &(s1) }; VAL [\old(s1)=null, \old(s1)=null, s1={3:0}] [L671] CALL foo() VAL [s1={3:0}] [L665] int j = __VERIFIER_nondet_int(); VAL [__VERIFIER_nondet_int()=0, j=0, s1={3:0}] [L666] CALL ldv_set_add(j, &s1) VAL [\old(new)=0, s={3:0}, s1={3:0}] [L633] CALL, EXPR ldv_is_in_set(new, s) VAL [\old(e)=0, s={3:0}, s1={3:0}] [L651] struct ldv_list_element *m; VAL [\old(e)=0, e=0, s={3:0}, s={3:0}, s1={3:0}] [L652] EXPR (s)->next VAL [(s)->next={3:0}, \old(e)=0, e=0, s={3:0}, s={3:0}, s1={3:0}] [L652] const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); VAL [(s)->next={3:0}, \old(e)=0, __mptr={3:0}, e=0, s={3:0}, s={3:0}, s1={3:0}] [L652] m = ({ const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); (typeof(*m) *)( (char *)__mptr - ((size_t) &((typeof(*m) *)0)->list) );}) VAL [\old(e)=0, __mptr={3:0}, e=0, m={3:-4}, s={3:0}, s={3:0}, s1={3:0}] [L652] COND FALSE !(&m->list != (s)) VAL [\old(e)=0, __mptr={3:0}, e=0, m={3:-4}, s={3:0}, s={3:0}, s1={3:0}] [L657] return 0; VAL [\old(e)=0, \result=0, __mptr={3:0}, e=0, m={3:-4}, s={3:0}, s={3:0}, s1={3:0}] [L633] RET, EXPR ldv_is_in_set(new, s) VAL [\old(new)=0, ldv_is_in_set(new, s)=0, new=0, s={3:0}, s={3:0}, s1={3:0}] [L633] COND TRUE !ldv_is_in_set(new, s) VAL [\old(new)=0, ldv_is_in_set(new, s)=0, new=0, s={3:0}, s={3:0}, s1={3:0}] [L634] struct ldv_list_element *le; VAL [\old(new)=0, new=0, s={3:0}, s={3:0}, s1={3:0}] [L635] CALL, EXPR ldv_successful_malloc(sizeof(struct ldv_list_element)) VAL [\old(size)=12, s1={3:0}] [L576] void *ptr = malloc(size); VAL [\old(size)=12, malloc(size)={-1:0}, ptr={-1:0}, s1={3:0}, size=12] [L577] CALL assume_abort_if_not(ptr!=0) VAL [\old(cond)=1, s1={3:0}] [L565] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, s1={3:0}] [L577] RET assume_abort_if_not(ptr!=0) VAL [\old(size)=12, malloc(size)={-1:0}, ptr={-1:0}, s1={3:0}, size=12] [L578] return ptr; VAL [\old(size)=12, \result={-1:0}, malloc(size)={-1:0}, ptr={-1:0}, s1={3:0}, size=12] [L635] RET, EXPR ldv_successful_malloc(sizeof(struct ldv_list_element)) VAL [\old(new)=0, ldv_successful_malloc(sizeof(struct ldv_list_element))={-1:0}, new=0, s={3:0}, s={3:0}, s1={3:0}] [L635] le = (struct ldv_list_element*)ldv_successful_malloc(sizeof(struct ldv_list_element)) VAL [\old(new)=0, ldv_successful_malloc(sizeof(struct ldv_list_element))={-1:0}, le={-1:0}, new=0, s={3:0}, s={3:0}, s1={3:0}] [L636] le->e = new VAL [\old(new)=0, le={-1:0}, new=0, s={3:0}, s={3:0}, s1={3:0}] [L637] CALL ldv_list_add(&le->list, s) VAL [head={3:0}, new={-1:4}, s1={3:0}] [L605] EXPR head->next VAL [head={3:0}, head={3:0}, head->next={3:0}, new={-1:4}, new={-1:4}, s1={3:0}] [L605] CALL __ldv_list_add(new, head, head->next) VAL [new={-1:4}, next={3:0}, prev={3:0}, s1={3:0}] [L593] next->prev = new VAL [new={-1:4}, new={-1:4}, next={3:0}, next={3:0}, prev={3:0}, prev={3:0}, s1={3:0}] [L594] new->next = next VAL [new={-1:4}, new={-1:4}, next={3:0}, next={3:0}, prev={3:0}, prev={3:0}, s1={3:0}] [L595] new->prev = prev VAL [new={-1:4}, new={-1:4}, next={3:0}, next={3:0}, prev={3:0}, prev={3:0}, s1={3:0}] [L596] prev->next = new VAL [new={-1:4}, new={-1:4}, next={3:0}, next={3:0}, prev={3:0}, prev={3:0}, s1={3:0}] [L605] RET __ldv_list_add(new, head, head->next) VAL [head={3:0}, head={3:0}, head->next={3:0}, new={-1:4}, new={-1:4}, s1={3:0}] [L637] RET ldv_list_add(&le->list, s) VAL [\old(new)=0, le={-1:0}, new=0, s={3:0}, s={3:0}, s1={3:0}] [L666] RET ldv_set_add(j, &s1) VAL [j=0, s1={3:0}] [L667] CALL ldv_is_in_set(j, &s1) VAL [\old(e)=0, s={3:0}, s1={3:0}] [L651] struct ldv_list_element *m; VAL [\old(e)=0, e=0, s={3:0}, s={3:0}, s1={3:0}] [L652] EXPR (s)->next VAL [(s)->next={-1:4}, \old(e)=0, e=0, s={3:0}, s={3:0}, s1={3:0}] [L652] const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); VAL [(s)->next={-1:4}, \old(e)=0, __mptr={-1:4}, e=0, s={3:0}, s={3:0}, s1={3:0}] [L652] m = ({ const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); (typeof(*m) *)( (char *)__mptr - ((size_t) &((typeof(*m) *)0)->list) );}) VAL [\old(e)=0, __mptr={-1:4}, e=0, m={-1:0}, s={3:0}, s={3:0}, s1={3:0}] [L652] COND TRUE &m->list != (s) VAL [\old(e)=0, __mptr={-1:4}, e=0, m={-1:0}, s={3:0}, s={3:0}, s1={3:0}] [L653] EXPR m->e VAL [\old(e)=0, __mptr={-1:4}, e=0, m={-1:0}, m->e=0, s={3:0}, s={3:0}, s1={3:0}] [L653] COND TRUE m->e == e VAL [\old(e)=0, __mptr={-1:4}, e=0, m={-1:0}, m->e=0, s={3:0}, s={3:0}, s1={3:0}] [L654] return 1; VAL [\old(e)=0, \result=1, __mptr={-1:4}, e=0, m={-1:0}, s={3:0}, s={3:0}, s1={3:0}] [L667] RET ldv_is_in_set(j, &s1) VAL [j=0, ldv_is_in_set(j, &s1)=1, s1={3:0}] [L667] COND TRUE ldv_is_in_set(j, &s1) VAL [j=0, ldv_is_in_set(j, &s1)=1, s1={3:0}] [L667] CALL reach_error() VAL [s1={3:0}] [L562] COND FALSE !(0) VAL [s1={3:0}] [L562] __assert_fail ("0", "model/ldv.h", 3, __extension__ __PRETTY_FUNCTION__) VAL [s1={3:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 22 procedures, 191 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 5.5s, OverallIterations: 4, TraceHistogramMax: 2, AutomataDifference: 3.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 253 SDtfs, 748 SDslu, 216 SDs, 0 SdLazy, 931 SolverSat, 130 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 88 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 301 ImplicationChecksByTransitivity, 2.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=105occurred 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, 3 MinimizatonAttempts, 26 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 269 NumberOfCodeBlocks, 269 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 174 ConstructedInterpolants, 0 QuantifiedInterpolants, 51054 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 21/35 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 incorrect! Received shutdown request...