/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/forester-heap/dll-simple-white-blue-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-23 23:08:10,037 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-23 23:08:10,040 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-23 23:08:10,074 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-23 23:08:10,075 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-23 23:08:10,077 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-23 23:08:10,078 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-23 23:08:10,081 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-23 23:08:10,083 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-23 23:08:10,084 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-23 23:08:10,085 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-23 23:08:10,087 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-23 23:08:10,087 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-23 23:08:10,089 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-23 23:08:10,090 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-23 23:08:10,091 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-23 23:08:10,105 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-23 23:08:10,112 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-23 23:08:10,114 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-23 23:08:10,117 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-23 23:08:10,124 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-23 23:08:10,126 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-23 23:08:10,127 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-23 23:08:10,128 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-23 23:08:10,131 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-23 23:08:10,141 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-23 23:08:10,142 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-23 23:08:10,143 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-23 23:08:10,144 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2021-02-23 23:08:10,157 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-23 23:08:10,157 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-23 23:08:10,159 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-23 23:08:10,159 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-23 23:08:10,159 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-23 23:08:10,159 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-23 23:08:10,160 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-23 23:08:10,160 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-23 23:08:10,160 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-23 23:08:10,160 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-23 23:08:10,161 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-23 23:08:10,161 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-23 23:08:10,161 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-23 23:08:10,161 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-23 23:08:10,161 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-23 23:08:10,162 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-23 23:08:10,162 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-23 23:08:10,162 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-23 23:08:10,162 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-23 23:08:10,163 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-23 23:08:10,163 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-23 23:08:10,163 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-23 23:08:10,163 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2021-02-23 23:08:10,569 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-23 23:08:10,619 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-23 23:08:10,623 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-23 23:08:10,625 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-23 23:08:10,628 INFO L275 PluginConnector]: CDTParser initialized [2021-02-23 23:08:10,630 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/dll-simple-white-blue-1.i [2021-02-23 23:08:10,732 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ead66d4e3/4309e2b0542349fea76ec79b5fbc203a/FLAG910b654fd [2021-02-23 23:08:11,522 INFO L306 CDTParser]: Found 1 translation units. [2021-02-23 23:08:11,522 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-simple-white-blue-1.i [2021-02-23 23:08:11,537 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ead66d4e3/4309e2b0542349fea76ec79b5fbc203a/FLAG910b654fd [2021-02-23 23:08:11,755 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ead66d4e3/4309e2b0542349fea76ec79b5fbc203a [2021-02-23 23:08:11,758 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-23 23:08:11,771 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-23 23:08:11,774 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-23 23:08:11,774 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-23 23:08:11,778 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-23 23:08:11,779 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 11:08:11" (1/1) ... [2021-02-23 23:08:11,781 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@478f7f83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:08:11, skipping insertion in model container [2021-02-23 23:08:11,782 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 11:08:11" (1/1) ... [2021-02-23 23:08:11,791 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-23 23:08:11,862 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-23 23:08:12,210 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-simple-white-blue-1.i[22793,22806] [2021-02-23 23:08:12,218 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 23:08:12,228 INFO L203 MainTranslator]: Completed pre-run [2021-02-23 23:08:12,275 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-simple-white-blue-1.i[22793,22806] [2021-02-23 23:08:12,278 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 23:08:12,381 INFO L208 MainTranslator]: Completed translation [2021-02-23 23:08:12,385 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:08:12 WrapperNode [2021-02-23 23:08:12,385 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-23 23:08:12,388 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-23 23:08:12,389 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-23 23:08:12,389 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-23 23:08:12,426 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:08:12" (1/1) ... [2021-02-23 23:08:12,427 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:08:12" (1/1) ... [2021-02-23 23:08:12,444 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:08:12" (1/1) ... [2021-02-23 23:08:12,444 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:08:12" (1/1) ... [2021-02-23 23:08:12,465 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:08:12" (1/1) ... [2021-02-23 23:08:12,472 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:08:12" (1/1) ... [2021-02-23 23:08:12,477 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:08:12" (1/1) ... [2021-02-23 23:08:12,484 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-23 23:08:12,486 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-23 23:08:12,486 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-23 23:08:12,486 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-23 23:08:12,487 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:08:12" (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 [2021-02-23 23:08:12,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-23 23:08:12,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-23 23:08:12,597 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-23 23:08:12,597 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-23 23:08:12,597 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-02-23 23:08:12,597 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-02-23 23:08:12,597 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-02-23 23:08:12,597 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-02-23 23:08:12,598 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-02-23 23:08:12,598 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-02-23 23:08:12,598 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-02-23 23:08:12,598 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-02-23 23:08:12,598 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-02-23 23:08:12,598 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-02-23 23:08:12,599 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-02-23 23:08:12,599 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-02-23 23:08:12,599 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-02-23 23:08:12,599 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-02-23 23:08:12,599 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-02-23 23:08:12,599 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-02-23 23:08:12,600 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-02-23 23:08:12,600 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-02-23 23:08:12,600 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-02-23 23:08:12,600 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-02-23 23:08:12,600 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-02-23 23:08:12,601 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-02-23 23:08:12,601 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-02-23 23:08:12,601 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-02-23 23:08:12,601 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-02-23 23:08:12,601 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-02-23 23:08:12,601 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-02-23 23:08:12,602 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-02-23 23:08:12,602 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-02-23 23:08:12,602 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-02-23 23:08:12,602 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-02-23 23:08:12,602 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-02-23 23:08:12,602 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-02-23 23:08:12,602 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-02-23 23:08:12,603 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-02-23 23:08:12,603 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-02-23 23:08:12,603 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-02-23 23:08:12,603 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-02-23 23:08:12,603 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-02-23 23:08:12,603 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-02-23 23:08:12,604 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-02-23 23:08:12,605 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-02-23 23:08:12,605 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-02-23 23:08:12,605 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-02-23 23:08:12,605 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-02-23 23:08:12,605 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-02-23 23:08:12,605 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-02-23 23:08:12,606 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-02-23 23:08:12,606 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-02-23 23:08:12,606 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-02-23 23:08:12,606 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-02-23 23:08:12,606 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-02-23 23:08:12,606 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-02-23 23:08:12,607 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-02-23 23:08:12,607 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2021-02-23 23:08:12,607 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-02-23 23:08:12,607 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-02-23 23:08:12,607 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-02-23 23:08:12,607 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-02-23 23:08:12,608 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-23 23:08:12,608 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-02-23 23:08:12,609 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-02-23 23:08:12,609 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-02-23 23:08:12,609 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-02-23 23:08:12,609 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-02-23 23:08:12,609 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-02-23 23:08:12,609 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-02-23 23:08:12,610 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-02-23 23:08:12,611 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-02-23 23:08:12,611 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-02-23 23:08:12,611 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-02-23 23:08:12,611 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-02-23 23:08:12,611 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-02-23 23:08:12,612 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-02-23 23:08:12,613 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-02-23 23:08:12,613 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-02-23 23:08:12,613 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-02-23 23:08:12,614 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-02-23 23:08:12,615 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-02-23 23:08:12,615 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-02-23 23:08:12,616 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-02-23 23:08:12,616 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-02-23 23:08:12,617 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-02-23 23:08:12,618 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-02-23 23:08:12,618 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-02-23 23:08:12,619 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-02-23 23:08:12,619 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-02-23 23:08:12,619 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-02-23 23:08:12,619 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-02-23 23:08:12,619 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-02-23 23:08:12,619 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-02-23 23:08:12,620 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-02-23 23:08:12,620 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-02-23 23:08:12,620 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-02-23 23:08:12,624 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-02-23 23:08:12,624 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-02-23 23:08:12,624 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-02-23 23:08:12,624 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-02-23 23:08:12,624 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-02-23 23:08:12,624 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-02-23 23:08:12,625 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-02-23 23:08:12,625 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-02-23 23:08:12,625 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-02-23 23:08:12,625 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-23 23:08:12,625 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-23 23:08:12,625 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2021-02-23 23:08:12,625 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2021-02-23 23:08:12,626 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-23 23:08:12,626 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-23 23:08:12,626 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-23 23:08:12,626 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-02-23 23:08:12,626 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-02-23 23:08:12,626 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-23 23:08:12,626 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-02-23 23:08:12,627 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-23 23:08:12,627 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-23 23:08:12,627 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-23 23:08:12,627 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-23 23:08:12,631 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-23 23:08:13,352 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-23 23:08:13,353 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-02-23 23:08:13,355 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 11:08:13 BoogieIcfgContainer [2021-02-23 23:08:13,355 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-23 23:08:13,357 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-23 23:08:13,358 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-23 23:08:13,362 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-23 23:08:13,362 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.02 11:08:11" (1/3) ... [2021-02-23 23:08:13,363 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7230310a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 11:08:13, skipping insertion in model container [2021-02-23 23:08:13,364 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:08:12" (2/3) ... [2021-02-23 23:08:13,364 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7230310a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 11:08:13, skipping insertion in model container [2021-02-23 23:08:13,364 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 11:08:13" (3/3) ... [2021-02-23 23:08:13,366 INFO L111 eAbstractionObserver]: Analyzing ICFG dll-simple-white-blue-1.i [2021-02-23 23:08:13,376 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-23 23:08:13,383 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-23 23:08:13,405 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-23 23:08:13,433 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-23 23:08:13,434 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-23 23:08:13,434 INFO L378 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2021-02-23 23:08:13,434 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-23 23:08:13,434 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-23 23:08:13,435 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-23 23:08:13,435 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-23 23:08:13,435 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-23 23:08:13,456 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states. [2021-02-23 23:08:13,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-02-23 23:08:13,470 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 23:08:13,471 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] [2021-02-23 23:08:13,472 INFO L428 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 23:08:13,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 23:08:13,480 INFO L82 PathProgramCache]: Analyzing trace with hash 1859151477, now seen corresponding path program 1 times [2021-02-23 23:08:13,491 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 23:08:13,492 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [388229458] [2021-02-23 23:08:13,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 23:08:13,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:08:13,715 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:08:13,716 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:08:13,717 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:08:13,718 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:08:13,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:08:13,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:08:13,769 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:08:13,770 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:08:13,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 23:08:13,794 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [388229458] [2021-02-23 23:08:13,800 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 23:08:13,800 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-23 23:08:13,801 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460781194] [2021-02-23 23:08:13,808 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-23 23:08:13,808 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 23:08:13,826 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-23 23:08:13,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-23 23:08:13,830 INFO L87 Difference]: Start difference. First operand 103 states. Second operand 3 states. [2021-02-23 23:08:14,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 23:08:14,162 INFO L93 Difference]: Finished difference Result 173 states and 202 transitions. [2021-02-23 23:08:14,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-23 23:08:14,164 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 37 [2021-02-23 23:08:14,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 23:08:14,177 INFO L225 Difference]: With dead ends: 173 [2021-02-23 23:08:14,177 INFO L226 Difference]: Without dead ends: 89 [2021-02-23 23:08:14,182 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-23 23:08:14,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2021-02-23 23:08:14,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2021-02-23 23:08:14,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2021-02-23 23:08:14,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 95 transitions. [2021-02-23 23:08:14,236 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 95 transitions. Word has length 37 [2021-02-23 23:08:14,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 23:08:14,236 INFO L480 AbstractCegarLoop]: Abstraction has 89 states and 95 transitions. [2021-02-23 23:08:14,237 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-02-23 23:08:14,237 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 95 transitions. [2021-02-23 23:08:14,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-02-23 23:08:14,239 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 23:08:14,239 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] [2021-02-23 23:08:14,240 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-23 23:08:14,240 INFO L428 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 23:08:14,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 23:08:14,241 INFO L82 PathProgramCache]: Analyzing trace with hash -1978127460, now seen corresponding path program 1 times [2021-02-23 23:08:14,241 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 23:08:14,242 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [725840823] [2021-02-23 23:08:14,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 23:08:14,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-23 23:08:14,310 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-23 23:08:14,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-23 23:08:14,387 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-23 23:08:14,428 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2021-02-23 23:08:14,428 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-23 23:08:14,429 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-23 23:08:14,477 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.02 11:08:14 BoogieIcfgContainer [2021-02-23 23:08:14,477 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-23 23:08:14,479 INFO L168 Benchmark]: Toolchain (without parser) took 2718.83 ms. Allocated memory is still 151.0 MB. Free memory was 126.7 MB in the beginning and 100.8 MB in the end (delta: 25.9 MB). Peak memory consumption was 26.6 MB. Max. memory is 8.0 GB. [2021-02-23 23:08:14,480 INFO L168 Benchmark]: CDTParser took 1.23 ms. Allocated memory is still 151.0 MB. Free memory was 124.8 MB in the beginning and 124.3 MB in the end (delta: 435.2 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-02-23 23:08:14,481 INFO L168 Benchmark]: CACSL2BoogieTranslator took 611.69 ms. Allocated memory is still 151.0 MB. Free memory was 125.7 MB in the beginning and 133.8 MB in the end (delta: -8.1 MB). Peak memory consumption was 26.6 MB. Max. memory is 8.0 GB. [2021-02-23 23:08:14,485 INFO L168 Benchmark]: Boogie Preprocessor took 96.35 ms. Allocated memory is still 151.0 MB. Free memory was 133.8 MB in the beginning and 130.7 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-02-23 23:08:14,486 INFO L168 Benchmark]: RCFGBuilder took 869.82 ms. Allocated memory is still 151.0 MB. Free memory was 130.7 MB in the beginning and 79.8 MB in the end (delta: 50.9 MB). Peak memory consumption was 51.4 MB. Max. memory is 8.0 GB. [2021-02-23 23:08:14,486 INFO L168 Benchmark]: TraceAbstraction took 1119.79 ms. Allocated memory is still 151.0 MB. Free memory was 79.3 MB in the beginning and 100.8 MB in the end (delta: -21.6 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-02-23 23:08:14,496 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.23 ms. Allocated memory is still 151.0 MB. Free memory was 124.8 MB in the beginning and 124.3 MB in the end (delta: 435.2 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 611.69 ms. Allocated memory is still 151.0 MB. Free memory was 125.7 MB in the beginning and 133.8 MB in the end (delta: -8.1 MB). Peak memory consumption was 26.6 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 96.35 ms. Allocated memory is still 151.0 MB. Free memory was 133.8 MB in the beginning and 130.7 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 869.82 ms. Allocated memory is still 151.0 MB. Free memory was 130.7 MB in the beginning and 79.8 MB in the end (delta: 50.9 MB). Peak memory consumption was 51.4 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1119.79 ms. Allocated memory is still 151.0 MB. Free memory was 79.3 MB in the beginning and 100.8 MB in the end (delta: -21.6 MB). There was no memory consumed. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1063]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1000] SLL* head = malloc(sizeof(SLL)); VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}] [L1001] head->next = ((void*)0) VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}] [L1002] head->prev = ((void*)0) VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}] [L1003] head->data = 0 VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}] [L1005] SLL* x = head; VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, x={-1:0}] [L1008] COND FALSE !(__VERIFIER_nondet_int()) VAL [__VERIFIER_nondet_int()=0, head={-1:0}, malloc(sizeof(SLL))={-1:0}, x={-1:0}] [L1019] COND TRUE __VERIFIER_nondet_int() VAL [__VERIFIER_nondet_int()=1, head={-1:0}, malloc(sizeof(SLL))={-1:0}, x={-1:0}] [L1020] x = malloc(sizeof(SLL)) VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-2:0}, x={-2:0}] [L1021] x->data = 1 VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-2:0}, x={-2:0}] [L1022] x->next = head VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-2:0}, x={-2:0}] [L1023] x->prev = ((void*)0) VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-2:0}, x={-2:0}] [L1024] head = x VAL [head={-2:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-2:0}, x={-2:0}] [L1050] x = head VAL [head={-2:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-2:0}, x={-2:0}] [L1053] EXPR x->data VAL [head={-2:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-2:0}, x={-2:0}, x->data=1] [L1053] COND FALSE !(x->data != 1) VAL [head={-2:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-2:0}, x={-2:0}, x->data=1] [L1059] EXPR x->next VAL [head={-2:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-2:0}, x={-2:0}, x->next={-1:0}] [L1059] x = x->next VAL [head={-2:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-2:0}, x={-1:0}, x->next={-1:0}] [L1060] COND TRUE \read(*x) VAL [head={-2:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-2:0}, x={-1:0}] [L1062] EXPR x->data VAL [head={-2:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-2:0}, x={-1:0}, x->data=0] [L1062] COND TRUE x->data != 1 VAL [head={-2:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-2:0}, x={-1:0}, x->data=0] [L1063] reach_error() VAL [head={-2:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-2:0}, x={-1:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 108 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.9s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 107 SDtfs, 0 SDslu, 5 SDs, 0 SdLazy, 102 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=103occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 78 NumberOfCodeBlocks, 78 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 36 ConstructedInterpolants, 0 QuantifiedInterpolants, 2160 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 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...