/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/heap-manipulation/sll_to_dll_rev-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-07 05:14:32,530 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-07 05:14:32,534 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-07 05:14:32,578 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-07 05:14:32,579 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-07 05:14:32,581 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-07 05:14:32,582 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-07 05:14:32,585 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-07 05:14:32,587 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-07 05:14:32,588 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-07 05:14:32,589 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-07 05:14:32,591 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-07 05:14:32,591 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-07 05:14:32,592 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-07 05:14:32,594 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-07 05:14:32,595 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-07 05:14:32,596 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-07 05:14:32,597 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-07 05:14:32,619 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-07 05:14:32,622 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-07 05:14:32,624 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-07 05:14:32,625 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-07 05:14:32,626 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-07 05:14:32,627 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-07 05:14:32,630 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-07 05:14:32,631 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-07 05:14:32,631 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-07 05:14:32,632 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-07 05:14:32,633 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-07 05:14:32,634 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-07 05:14:32,634 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-07 05:14:32,635 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-07 05:14:32,636 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-07 05:14:32,637 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-07 05:14:32,638 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-07 05:14:32,639 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-07 05:14:32,640 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-07 05:14:32,640 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-07 05:14:32,640 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-07 05:14:32,642 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-07 05:14:32,642 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-07 05:14:32,644 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 05:14:32,656 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-07 05:14:32,657 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-07 05:14:32,658 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-07 05:14:32,659 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-07 05:14:32,659 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-07 05:14:32,659 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-07 05:14:32,659 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-07 05:14:32,659 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-07 05:14:32,660 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-07 05:14:32,660 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-07 05:14:32,660 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-07 05:14:32,660 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-07 05:14:32,660 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-07 05:14:32,661 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-07 05:14:32,661 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-07 05:14:32,661 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-11-07 05:14:32,661 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-07 05:14:32,662 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-07 05:14:32,662 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 05:14:32,662 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-07 05:14:32,662 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-11-07 05:14:32,663 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-07 05:14:32,663 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-11-07 05:14:33,051 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-07 05:14:33,100 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-07 05:14:33,104 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-07 05:14:33,106 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-07 05:14:33,107 INFO L275 PluginConnector]: CDTParser initialized [2020-11-07 05:14:33,108 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/heap-manipulation/sll_to_dll_rev-1.i [2020-11-07 05:14:33,202 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/28150d799/c796884caea348608c8b650fd4dbd8a9/FLAG537f395dc [2020-11-07 05:14:33,956 INFO L306 CDTParser]: Found 1 translation units. [2020-11-07 05:14:33,957 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/heap-manipulation/sll_to_dll_rev-1.i [2020-11-07 05:14:33,984 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/28150d799/c796884caea348608c8b650fd4dbd8a9/FLAG537f395dc [2020-11-07 05:14:34,226 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/28150d799/c796884caea348608c8b650fd4dbd8a9 [2020-11-07 05:14:34,229 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-07 05:14:34,236 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-07 05:14:34,238 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-07 05:14:34,239 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-07 05:14:34,243 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-07 05:14:34,244 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 05:14:34" (1/1) ... [2020-11-07 05:14:34,247 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4379e9f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:14:34, skipping insertion in model container [2020-11-07 05:14:34,248 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 05:14:34" (1/1) ... [2020-11-07 05:14:34,256 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-07 05:14:34,332 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-07 05:14:34,699 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 05:14:34,715 INFO L203 MainTranslator]: Completed pre-run [2020-11-07 05:14:34,803 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 05:14:34,939 INFO L208 MainTranslator]: Completed translation [2020-11-07 05:14:34,940 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:14:34 WrapperNode [2020-11-07 05:14:34,945 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-07 05:14:34,947 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-07 05:14:34,947 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-07 05:14:34,947 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-07 05:14:34,967 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:14:34" (1/1) ... [2020-11-07 05:14:34,967 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:14:34" (1/1) ... [2020-11-07 05:14:34,985 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:14:34" (1/1) ... [2020-11-07 05:14:34,985 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:14:34" (1/1) ... [2020-11-07 05:14:35,010 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:14:34" (1/1) ... [2020-11-07 05:14:35,023 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:14:34" (1/1) ... [2020-11-07 05:14:35,031 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:14:34" (1/1) ... [2020-11-07 05:14:35,040 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-07 05:14:35,050 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-07 05:14:35,051 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-07 05:14:35,051 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-07 05:14:35,052 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:14:34" (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 05:14:35,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-07 05:14:35,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-07 05:14:35,120 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-07 05:14:35,120 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-11-07 05:14:35,121 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-11-07 05:14:35,121 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2020-11-07 05:14:35,121 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_node [2020-11-07 05:14:35,121 INFO L138 BoogieDeclarations]: Found implementation of procedure chain_node [2020-11-07 05:14:35,121 INFO L138 BoogieDeclarations]: Found implementation of procedure create_sll [2020-11-07 05:14:35,121 INFO L138 BoogieDeclarations]: Found implementation of procedure init_back_link [2020-11-07 05:14:35,122 INFO L138 BoogieDeclarations]: Found implementation of procedure reverse_dll [2020-11-07 05:14:35,122 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_fw_link [2020-11-07 05:14:35,122 INFO L138 BoogieDeclarations]: Found implementation of procedure check_seq_next [2020-11-07 05:14:35,122 INFO L138 BoogieDeclarations]: Found implementation of procedure check_seq_prev [2020-11-07 05:14:35,122 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-07 05:14:35,122 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-07 05:14:35,123 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-07 05:14:35,123 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-11-07 05:14:35,123 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-11-07 05:14:35,123 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-07 05:14:35,123 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-07 05:14:35,123 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-11-07 05:14:35,124 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-11-07 05:14:35,124 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-11-07 05:14:35,124 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-11-07 05:14:35,124 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-11-07 05:14:35,124 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-11-07 05:14:35,124 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-11-07 05:14:35,125 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-11-07 05:14:35,125 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-11-07 05:14:35,125 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-11-07 05:14:35,125 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-11-07 05:14:35,125 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-11-07 05:14:35,125 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-11-07 05:14:35,126 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-11-07 05:14:35,126 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-11-07 05:14:35,126 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-11-07 05:14:35,126 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-11-07 05:14:35,126 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-11-07 05:14:35,126 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-11-07 05:14:35,127 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-11-07 05:14:35,127 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-11-07 05:14:35,127 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-11-07 05:14:35,127 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-11-07 05:14:35,127 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-11-07 05:14:35,127 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-11-07 05:14:35,128 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-11-07 05:14:35,128 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-11-07 05:14:35,128 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-11-07 05:14:35,128 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-11-07 05:14:35,128 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-11-07 05:14:35,128 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-11-07 05:14:35,128 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-11-07 05:14:35,129 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-11-07 05:14:35,129 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-11-07 05:14:35,129 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-11-07 05:14:35,129 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-11-07 05:14:35,129 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-11-07 05:14:35,129 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-11-07 05:14:35,129 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-11-07 05:14:35,130 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-11-07 05:14:35,130 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-11-07 05:14:35,130 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-11-07 05:14:35,130 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-11-07 05:14:35,130 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-11-07 05:14:35,130 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-11-07 05:14:35,130 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-11-07 05:14:35,130 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-11-07 05:14:35,131 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-11-07 05:14:35,131 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-11-07 05:14:35,131 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-11-07 05:14:35,131 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-11-07 05:14:35,131 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-11-07 05:14:35,131 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-11-07 05:14:35,132 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-11-07 05:14:35,132 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-11-07 05:14:35,132 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-11-07 05:14:35,132 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-11-07 05:14:35,132 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-11-07 05:14:35,132 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-11-07 05:14:35,132 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-11-07 05:14:35,133 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-11-07 05:14:35,133 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-11-07 05:14:35,133 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-11-07 05:14:35,133 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-11-07 05:14:35,133 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-11-07 05:14:35,133 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-11-07 05:14:35,133 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-11-07 05:14:35,134 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-11-07 05:14:35,134 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-11-07 05:14:35,134 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-11-07 05:14:35,134 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-11-07 05:14:35,134 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-11-07 05:14:35,134 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-11-07 05:14:35,135 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-11-07 05:14:35,135 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-11-07 05:14:35,135 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-11-07 05:14:35,135 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-11-07 05:14:35,135 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-11-07 05:14:35,135 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-11-07 05:14:35,135 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-11-07 05:14:35,136 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-11-07 05:14:35,136 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-11-07 05:14:35,136 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-11-07 05:14:35,136 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-11-07 05:14:35,136 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-11-07 05:14:35,136 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-11-07 05:14:35,136 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-11-07 05:14:35,136 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-11-07 05:14:35,137 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-11-07 05:14:35,137 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-11-07 05:14:35,137 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-11-07 05:14:35,137 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-11-07 05:14:35,137 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-11-07 05:14:35,137 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-11-07 05:14:35,137 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-11-07 05:14:35,138 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-11-07 05:14:35,138 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-11-07 05:14:35,138 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-11-07 05:14:35,138 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-11-07 05:14:35,138 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-11-07 05:14:35,138 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-11-07 05:14:35,138 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-07 05:14:35,139 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2020-11-07 05:14:35,139 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_node [2020-11-07 05:14:35,139 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-07 05:14:35,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-07 05:14:35,139 INFO L130 BoogieDeclarations]: Found specification of procedure chain_node [2020-11-07 05:14:35,139 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-07 05:14:35,140 INFO L130 BoogieDeclarations]: Found specification of procedure create_sll [2020-11-07 05:14:35,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-11-07 05:14:35,140 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-07 05:14:35,140 INFO L130 BoogieDeclarations]: Found specification of procedure init_back_link [2020-11-07 05:14:35,140 INFO L130 BoogieDeclarations]: Found specification of procedure reverse_dll [2020-11-07 05:14:35,140 INFO L130 BoogieDeclarations]: Found specification of procedure remove_fw_link [2020-11-07 05:14:35,140 INFO L130 BoogieDeclarations]: Found specification of procedure check_seq_next [2020-11-07 05:14:35,141 INFO L130 BoogieDeclarations]: Found specification of procedure check_seq_prev [2020-11-07 05:14:35,141 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-07 05:14:35,141 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-07 05:14:35,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-07 05:14:35,141 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-07 05:14:35,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-07 05:14:35,141 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-07 05:14:36,171 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-07 05:14:36,171 INFO L298 CfgBuilder]: Removed 33 assume(true) statements. [2020-11-07 05:14:36,173 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 05:14:36 BoogieIcfgContainer [2020-11-07 05:14:36,174 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-07 05:14:36,176 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-07 05:14:36,176 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-07 05:14:36,179 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-07 05:14:36,180 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 05:14:34" (1/3) ... [2020-11-07 05:14:36,180 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53ba173a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 05:14:36, skipping insertion in model container [2020-11-07 05:14:36,181 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:14:34" (2/3) ... [2020-11-07 05:14:36,181 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53ba173a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 05:14:36, skipping insertion in model container [2020-11-07 05:14:36,181 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 05:14:36" (3/3) ... [2020-11-07 05:14:36,183 INFO L111 eAbstractionObserver]: Analyzing ICFG sll_to_dll_rev-1.i [2020-11-07 05:14:36,199 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-07 05:14:36,203 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-07 05:14:36,219 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-07 05:14:36,246 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-07 05:14:36,246 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-07 05:14:36,246 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-11-07 05:14:36,246 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-07 05:14:36,247 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-07 05:14:36,247 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-07 05:14:36,247 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-07 05:14:36,247 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-07 05:14:36,268 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states. [2020-11-07 05:14:36,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-11-07 05:14:36,281 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:14:36,282 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] [2020-11-07 05:14:36,282 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:14:36,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:14:36,289 INFO L82 PathProgramCache]: Analyzing trace with hash 1014782748, now seen corresponding path program 1 times [2020-11-07 05:14:36,299 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:14:36,299 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1091004678] [2020-11-07 05:14:36,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:14:36,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:14:36,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:14:36,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:14:36,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-11-07 05:14:36,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:14:36,688 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 05:14:36,689 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1091004678] [2020-11-07 05:14:36,691 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 05:14:36,692 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-07 05:14:36,693 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136514207] [2020-11-07 05:14:36,702 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-07 05:14:36,702 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 05:14:36,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-07 05:14:36,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-07 05:14:36,724 INFO L87 Difference]: Start difference. First operand 218 states. Second operand 4 states. [2020-11-07 05:14:37,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 05:14:37,527 INFO L93 Difference]: Finished difference Result 435 states and 587 transitions. [2020-11-07 05:14:37,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-07 05:14:37,530 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 47 [2020-11-07 05:14:37,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 05:14:37,545 INFO L225 Difference]: With dead ends: 435 [2020-11-07 05:14:37,545 INFO L226 Difference]: Without dead ends: 217 [2020-11-07 05:14:37,552 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-07 05:14:37,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2020-11-07 05:14:37,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 194. [2020-11-07 05:14:37,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 194 states. [2020-11-07 05:14:37,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 214 transitions. [2020-11-07 05:14:37,635 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 214 transitions. Word has length 47 [2020-11-07 05:14:37,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 05:14:37,635 INFO L481 AbstractCegarLoop]: Abstraction has 194 states and 214 transitions. [2020-11-07 05:14:37,636 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-07 05:14:37,636 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 214 transitions. [2020-11-07 05:14:37,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-11-07 05:14:37,640 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:14:37,640 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 05:14:37,641 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-07 05:14:37,641 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:14:37,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:14:37,642 INFO L82 PathProgramCache]: Analyzing trace with hash 1812534921, now seen corresponding path program 1 times [2020-11-07 05:14:37,643 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:14:37,643 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [195055356] [2020-11-07 05:14:37,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:14:37,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:14:38,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:14:38,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:14:38,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-11-07 05:14:38,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:14:38,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 05:14:38,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:14:38,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 05:14:38,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:14:38,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-11-07 05:14:38,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:14:40,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 05:14:40,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:14:40,653 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 7 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-07 05:14:40,654 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [195055356] [2020-11-07 05:14:40,654 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 05:14:40,655 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34] total 34 [2020-11-07 05:14:40,655 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191375176] [2020-11-07 05:14:40,657 INFO L461 AbstractCegarLoop]: Interpolant automaton has 34 states [2020-11-07 05:14:40,657 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 05:14:40,658 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2020-11-07 05:14:40,659 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=1036, Unknown=0, NotChecked=0, Total=1122 [2020-11-07 05:14:40,659 INFO L87 Difference]: Start difference. First operand 194 states and 214 transitions. Second operand 34 states. [2020-11-07 05:14:41,483 WARN L194 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2020-11-07 05:14:41,942 WARN L194 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-11-07 05:14:43,478 WARN L194 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2020-11-07 05:14:48,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 05:14:48,247 INFO L93 Difference]: Finished difference Result 271 states and 306 transitions. [2020-11-07 05:14:48,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-11-07 05:14:48,248 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 91 [2020-11-07 05:14:48,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 05:14:48,252 INFO L225 Difference]: With dead ends: 271 [2020-11-07 05:14:48,252 INFO L226 Difference]: Without dead ends: 266 [2020-11-07 05:14:48,255 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 554 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=248, Invalid=3058, Unknown=0, NotChecked=0, Total=3306 [2020-11-07 05:14:48,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2020-11-07 05:14:48,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 211. [2020-11-07 05:14:48,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 211 states. [2020-11-07 05:14:48,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 233 transitions. [2020-11-07 05:14:48,327 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 233 transitions. Word has length 91 [2020-11-07 05:14:48,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 05:14:48,328 INFO L481 AbstractCegarLoop]: Abstraction has 211 states and 233 transitions. [2020-11-07 05:14:48,328 INFO L482 AbstractCegarLoop]: Interpolant automaton has 34 states. [2020-11-07 05:14:48,328 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 233 transitions. [2020-11-07 05:14:48,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-11-07 05:14:48,337 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:14:48,337 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 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, 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 05:14:48,338 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-07 05:14:48,338 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:14:48,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:14:48,339 INFO L82 PathProgramCache]: Analyzing trace with hash -2112971725, now seen corresponding path program 1 times [2020-11-07 05:14:48,339 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:14:48,339 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1997989064] [2020-11-07 05:14:48,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:14:48,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:14:48,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:14:48,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:14:48,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-11-07 05:14:48,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:14:49,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 05:14:49,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:14:49,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 05:14:49,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:14:49,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-11-07 05:14:49,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:14:50,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 05:14:50,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:14:50,705 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-07 05:14:50,705 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1997989064] [2020-11-07 05:14:50,705 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 05:14:50,706 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34] total 34 [2020-11-07 05:14:50,706 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375333359] [2020-11-07 05:14:50,706 INFO L461 AbstractCegarLoop]: Interpolant automaton has 34 states [2020-11-07 05:14:50,707 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 05:14:50,707 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2020-11-07 05:14:50,708 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=1041, Unknown=0, NotChecked=0, Total=1122 [2020-11-07 05:14:50,709 INFO L87 Difference]: Start difference. First operand 211 states and 233 transitions. Second operand 34 states. [2020-11-07 05:14:59,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 05:14:59,000 INFO L93 Difference]: Finished difference Result 281 states and 319 transitions. [2020-11-07 05:14:59,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2020-11-07 05:14:59,001 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 93 [2020-11-07 05:14:59,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 05:14:59,006 INFO L225 Difference]: With dead ends: 281 [2020-11-07 05:14:59,006 INFO L226 Difference]: Without dead ends: 276 [2020-11-07 05:14:59,008 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 499 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=283, Invalid=3499, Unknown=0, NotChecked=0, Total=3782 [2020-11-07 05:14:59,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2020-11-07 05:14:59,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 211. [2020-11-07 05:14:59,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 211 states. [2020-11-07 05:14:59,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 232 transitions. [2020-11-07 05:14:59,054 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 232 transitions. Word has length 93 [2020-11-07 05:14:59,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 05:14:59,055 INFO L481 AbstractCegarLoop]: Abstraction has 211 states and 232 transitions. [2020-11-07 05:14:59,055 INFO L482 AbstractCegarLoop]: Interpolant automaton has 34 states. [2020-11-07 05:14:59,055 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 232 transitions. [2020-11-07 05:14:59,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-11-07 05:14:59,057 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:14:59,057 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 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 05:14:59,057 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-07 05:14:59,057 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:14:59,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:14:59,058 INFO L82 PathProgramCache]: Analyzing trace with hash -1195292928, now seen corresponding path program 1 times [2020-11-07 05:14:59,058 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:14:59,058 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [932741471] [2020-11-07 05:14:59,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:14:59,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-07 05:14:59,099 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-07 05:14:59,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-07 05:14:59,133 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-07 05:14:59,179 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-11-07 05:14:59,180 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-07 05:14:59,180 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-07 05:14:59,279 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 05:14:59 BoogieIcfgContainer [2020-11-07 05:14:59,280 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-07 05:14:59,283 INFO L168 Benchmark]: Toolchain (without parser) took 25049.66 ms. Allocated memory was 159.4 MB in the beginning and 375.4 MB in the end (delta: 216.0 MB). Free memory was 134.8 MB in the beginning and 147.9 MB in the end (delta: -13.1 MB). Peak memory consumption was 203.9 MB. Max. memory is 8.0 GB. [2020-11-07 05:14:59,285 INFO L168 Benchmark]: CDTParser took 1.06 ms. Allocated memory is still 159.4 MB. Free memory was 133.9 MB in the beginning and 133.8 MB in the end (delta: 120.5 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-11-07 05:14:59,285 INFO L168 Benchmark]: CACSL2BoogieTranslator took 707.46 ms. Allocated memory is still 159.4 MB. Free memory was 134.2 MB in the beginning and 140.6 MB in the end (delta: -6.4 MB). Peak memory consumption was 26.7 MB. Max. memory is 8.0 GB. [2020-11-07 05:14:59,287 INFO L168 Benchmark]: Boogie Preprocessor took 93.97 ms. Allocated memory is still 159.4 MB. Free memory was 140.6 MB in the beginning and 136.9 MB in the end (delta: 3.7 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-11-07 05:14:59,288 INFO L168 Benchmark]: RCFGBuilder took 1123.49 ms. Allocated memory is still 159.4 MB. Free memory was 136.9 MB in the beginning and 125.7 MB in the end (delta: 11.2 MB). Peak memory consumption was 59.9 MB. Max. memory is 8.0 GB. [2020-11-07 05:14:59,292 INFO L168 Benchmark]: TraceAbstraction took 23104.25 ms. Allocated memory was 159.4 MB in the beginning and 375.4 MB in the end (delta: 216.0 MB). Free memory was 125.7 MB in the beginning and 147.9 MB in the end (delta: -22.2 MB). Peak memory consumption was 193.8 MB. Max. memory is 8.0 GB. [2020-11-07 05:14:59,298 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.06 ms. Allocated memory is still 159.4 MB. Free memory was 133.9 MB in the beginning and 133.8 MB in the end (delta: 120.5 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 707.46 ms. Allocated memory is still 159.4 MB. Free memory was 134.2 MB in the beginning and 140.6 MB in the end (delta: -6.4 MB). Peak memory consumption was 26.7 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 93.97 ms. Allocated memory is still 159.4 MB. Free memory was 140.6 MB in the beginning and 136.9 MB in the end (delta: 3.7 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1123.49 ms. Allocated memory is still 159.4 MB. Free memory was 136.9 MB in the beginning and 125.7 MB in the end (delta: 11.2 MB). Peak memory consumption was 59.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 23104.25 ms. Allocated memory was 159.4 MB in the beginning and 375.4 MB in the end (delta: 216.0 MB). Free memory was 125.7 MB in the beginning and 147.9 MB in the end (delta: -22.2 MB). Peak memory consumption was 193.8 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 12]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L639] const struct node *p1, *p2; VAL [p1={9:0}, p2={10:0}] [L640] CALL, EXPR create_sll(&p1, &p2) VAL [pp1={9:0}, pp2={10:0}] [L588] struct node *list = ((void *)0); VAL [list={5:0}, pp1={9:0}, pp1={9:0}, pp2={10:0}, pp2={10:0}] [L590] CALL chain_node(&list) VAL [ppnode={5:0}] [L582] CALL, EXPR alloc_node() [L573] struct node *ptr = malloc(sizeof *ptr); VAL [malloc(sizeof *ptr)={-1:0}, ptr={-1:0}] [L574] COND FALSE !(!ptr) VAL [malloc(sizeof *ptr)={-1:0}, ptr={-1:0}] [L576] ptr->next = ((void *)0) VAL [malloc(sizeof *ptr)={-1:0}, ptr={-1:0}] [L577] ptr->prev = ((void *)0) VAL [malloc(sizeof *ptr)={-1:0}, ptr={-1:0}] [L578] return ptr; VAL [\result={-1:0}, malloc(sizeof *ptr)={-1:0}, ptr={-1:0}] [L582] RET, EXPR alloc_node() VAL [alloc_node()={-1:0}, ppnode={5:0}, ppnode={5:0}] [L582] struct node *node = alloc_node(); VAL [alloc_node()={-1:0}, node={-1:0}, ppnode={5:0}, ppnode={5:0}] [L583] EXPR \read(**ppnode) VAL [\read(**ppnode)={0:0}, node={-1:0}, ppnode={5:0}, ppnode={5:0}] [L583] node->next = *ppnode VAL [\read(**ppnode)={0:0}, node={-1:0}, ppnode={5:0}, ppnode={5:0}] [L584] *ppnode = node VAL [node={-1:0}, ppnode={5:0}, ppnode={5:0}] [L590] RET chain_node(&list) VAL [list={5:0}, pp1={9:0}, pp1={9:0}, pp2={10:0}, pp2={10:0}] [L591] COND FALSE !(__VERIFIER_nondet_int()) VAL [__VERIFIER_nondet_int()=0, list={5:0}, pp1={9:0}, pp1={9:0}, pp2={10:0}, pp2={10:0}] [L592] EXPR \read(*list) VAL [\read(*list)={-1:0}, list={5:0}, pp1={9:0}, pp1={9:0}, pp2={10:0}, pp2={10:0}] [L592] *pp2 = list VAL [\read(*list)={-1:0}, list={5:0}, pp1={9:0}, pp1={9:0}, pp2={10:0}, pp2={10:0}] [L593] COND FALSE !(__VERIFIER_nondet_int()) VAL [__VERIFIER_nondet_int()=0, list={5:0}, pp1={9:0}, pp1={9:0}, pp2={10:0}, pp2={10:0}] [L595] EXPR \read(*list) VAL [\read(*list)={-1:0}, list={5:0}, pp1={9:0}, pp1={9:0}, pp2={10:0}, pp2={10:0}] [L595] *pp1 = list VAL [\read(*list)={-1:0}, list={5:0}, pp1={9:0}, pp1={9:0}, pp2={10:0}, pp2={10:0}] [L597] CALL chain_node(&list) VAL [ppnode={5:0}] [L582] CALL, EXPR alloc_node() [L573] struct node *ptr = malloc(sizeof *ptr); VAL [malloc(sizeof *ptr)={3:0}, ptr={3:0}] [L574] COND FALSE !(!ptr) VAL [malloc(sizeof *ptr)={3:0}, ptr={3:0}] [L576] ptr->next = ((void *)0) VAL [malloc(sizeof *ptr)={3:0}, ptr={3:0}] [L577] ptr->prev = ((void *)0) VAL [malloc(sizeof *ptr)={3:0}, ptr={3:0}] [L578] return ptr; VAL [\result={3:0}, malloc(sizeof *ptr)={3:0}, ptr={3:0}] [L582] RET, EXPR alloc_node() VAL [alloc_node()={3:0}, ppnode={5:0}, ppnode={5:0}] [L582] struct node *node = alloc_node(); VAL [alloc_node()={3:0}, node={3:0}, ppnode={5:0}, ppnode={5:0}] [L583] EXPR \read(**ppnode) VAL [\read(**ppnode)={-1:0}, node={3:0}, ppnode={5:0}, ppnode={5:0}] [L583] node->next = *ppnode VAL [\read(**ppnode)={-1:0}, node={3:0}, ppnode={5:0}, ppnode={5:0}] [L584] *ppnode = node VAL [node={3:0}, ppnode={5:0}, ppnode={5:0}] [L597] RET chain_node(&list) VAL [list={5:0}, pp1={9:0}, pp1={9:0}, pp2={10:0}, pp2={10:0}] [L598] COND FALSE !(__VERIFIER_nondet_int()) VAL [__VERIFIER_nondet_int()=0, list={5:0}, pp1={9:0}, pp1={9:0}, pp2={10:0}, pp2={10:0}] [L599] EXPR \read(*list) VAL [\read(*list)={3:0}, list={5:0}, pp1={9:0}, pp1={9:0}, pp2={10:0}, pp2={10:0}] [L599] return list; VAL [\read(*list)={3:0}, \result={3:0}, list={5:0}, pp1={9:0}, pp1={9:0}, pp2={10:0}, pp2={10:0}] [L588] struct node *list = ((void *)0); VAL [\result={3:0}, list={5:0}, pp1={9:0}, pp1={9:0}, pp2={10:0}, pp2={10:0}] [L599] return list; VAL [\result={3:0}, pp1={9:0}, pp1={9:0}, pp2={10:0}, pp2={10:0}] [L640] RET, EXPR create_sll(&p1, &p2) VAL [create_sll(&p1, &p2)={3:0}, p1={9:0}, p2={10:0}] [L640] struct node *list = create_sll(&p1, &p2); VAL [create_sll(&p1, &p2)={3:0}, list={3:0}, p1={9:0}, p2={10:0}] [L642] EXPR \read(*p1) VAL [\read(*p1)={-1:0}, list={3:0}, p1={9:0}, p2={10:0}] [L642] EXPR \read(*p2) VAL [\read(*p1)={-1:0}, \read(*p2)={-1:0}, list={3:0}, p1={9:0}, p2={10:0}] [L642] CALL check_seq_next(p1, p2) VAL [beg={-1:0}, end={-1:0}] [L626] COND FALSE !(!(beg)) VAL [beg={-1:0}, beg={-1:0}, end={-1:0}, end={-1:0}] [L627] COND FALSE !(!(end)) VAL [beg={-1:0}, beg={-1:0}, end={-1:0}, end={-1:0}] [L628] EXPR beg->next VAL [beg={-1:0}, beg={-1:0}, beg->next={0:0}, end={-1:0}, end={-1:0}] [L628] beg = beg->next VAL [beg={0:0}, beg={-1:0}, beg->next={0:0}, end={-1:0}, end={-1:0}] [L628] COND TRUE end != beg VAL [beg={0:0}, beg={-1:0}, end={-1:0}, end={-1:0}] [L629] COND TRUE !(beg) VAL [beg={-1:0}, beg={0:0}, end={-1:0}, end={-1:0}] [L629] CALL fail() [L565] CALL reach_error() [L12] COND FALSE !(0) [L12] __assert_fail ("0", "sll_to_dll_rev-1.c", 3, __extension__ __PRETTY_FUNCTION__) - StatisticsResult: Ultimate Automizer benchmark data CFG has 15 procedures, 228 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 22.9s, OverallIterations: 4, TraceHistogramMax: 2, AutomataDifference: 16.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 544 SDtfs, 1045 SDslu, 3423 SDs, 0 SdLazy, 9015 SolverSat, 327 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 9.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 144 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 119 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1053 ImplicationChecksByTransitivity, 8.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=218occurred 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, 143 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 5.2s InterpolantComputationTime, 330 NumberOfCodeBlocks, 330 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 228 ConstructedInterpolants, 0 QuantifiedInterpolants, 682464 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 11/36 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...