/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationWernerOverapprox_32.epf -i ../../../trunk/examples/svcomp/forester-heap/sll-token-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-24 04:25:56,151 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-24 04:25:56,156 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-24 04:25:56,224 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-24 04:25:56,224 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-24 04:25:56,229 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-24 04:25:56,234 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-24 04:25:56,242 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-24 04:25:56,257 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-24 04:25:56,263 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-24 04:25:56,265 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-24 04:25:56,267 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-24 04:25:56,268 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-24 04:25:56,270 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-24 04:25:56,273 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-24 04:25:56,275 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-24 04:25:56,278 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-24 04:25:56,280 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-24 04:25:56,282 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-24 04:25:56,284 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-24 04:25:56,286 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-24 04:25:56,288 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-24 04:25:56,289 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-24 04:25:56,291 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-24 04:25:56,294 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-24 04:25:56,295 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-24 04:25:56,295 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-24 04:25:56,296 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-24 04:25:56,297 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-24 04:25:56,298 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-02-24 04:25:56,298 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-24 04:25:56,299 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-24 04:25:56,300 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-24 04:25:56,301 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-24 04:25:56,302 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-24 04:25:56,303 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-24 04:25:56,304 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-24 04:25:56,304 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-24 04:25:56,304 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-24 04:25:56,305 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-24 04:25:56,306 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-24 04:25:56,308 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationWernerOverapprox_32.epf [2021-02-24 04:25:56,321 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-24 04:25:56,321 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-24 04:25:56,323 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-24 04:25:56,323 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-24 04:25:56,323 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-24 04:25:56,324 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-24 04:25:56,324 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-24 04:25:56,324 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-24 04:25:56,324 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-24 04:25:56,324 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-24 04:25:56,325 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-24 04:25:56,325 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-24 04:25:56,325 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-24 04:25:56,325 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-24 04:25:56,325 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-24 04:25:56,326 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-24 04:25:56,326 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-24 04:25:56,326 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-24 04:25:56,326 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-24 04:25:56,327 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-24 04:25:56,327 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-24 04:25:56,327 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-24 04:25:56,327 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=WERNER_OVERAPPROX [2021-02-24 04:25:56,327 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-24 04:25:56,745 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-24 04:25:56,775 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-24 04:25:56,778 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-24 04:25:56,780 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-24 04:25:56,781 INFO L275 PluginConnector]: CDTParser initialized [2021-02-24 04:25:56,782 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/sll-token-1.i [2021-02-24 04:25:56,895 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb84b912b/0e7367cb19d34d56ac932801730cf731/FLAG1999fc28a [2021-02-24 04:25:57,697 INFO L306 CDTParser]: Found 1 translation units. [2021-02-24 04:25:57,698 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/sll-token-1.i [2021-02-24 04:25:57,719 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb84b912b/0e7367cb19d34d56ac932801730cf731/FLAG1999fc28a [2021-02-24 04:25:57,989 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb84b912b/0e7367cb19d34d56ac932801730cf731 [2021-02-24 04:25:57,992 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-24 04:25:58,006 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-24 04:25:58,008 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-24 04:25:58,008 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-24 04:25:58,012 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-24 04:25:58,013 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 04:25:57" (1/1) ... [2021-02-24 04:25:58,015 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68b69ea5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:25:58, skipping insertion in model container [2021-02-24 04:25:58,015 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 04:25:57" (1/1) ... [2021-02-24 04:25:58,024 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-24 04:25:58,066 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-24 04:25:58,404 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/sll-token-1.i[22162,22175] [2021-02-24 04:25:58,420 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/sll-token-1.i[22311,22324] [2021-02-24 04:25:58,428 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/sll-token-1.i[22402,22415] [2021-02-24 04:25:58,430 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/sll-token-1.i[22484,22497] [2021-02-24 04:25:58,432 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/sll-token-1.i[22562,22575] [2021-02-24 04:25:58,434 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/sll-token-1.i[22708,22721] [2021-02-24 04:25:58,438 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 04:25:58,449 INFO L203 MainTranslator]: Completed pre-run [2021-02-24 04:25:58,493 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/sll-token-1.i[22162,22175] [2021-02-24 04:25:58,496 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/sll-token-1.i[22311,22324] [2021-02-24 04:25:58,497 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/sll-token-1.i[22402,22415] [2021-02-24 04:25:58,499 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/sll-token-1.i[22484,22497] [2021-02-24 04:25:58,501 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/sll-token-1.i[22562,22575] [2021-02-24 04:25:58,504 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/sll-token-1.i[22708,22721] [2021-02-24 04:25:58,506 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 04:25:58,569 INFO L208 MainTranslator]: Completed translation [2021-02-24 04:25:58,570 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:25:58 WrapperNode [2021-02-24 04:25:58,570 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-24 04:25:58,572 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-24 04:25:58,572 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-24 04:25:58,572 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-24 04:25:58,589 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:25:58" (1/1) ... [2021-02-24 04:25:58,589 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:25:58" (1/1) ... [2021-02-24 04:25:58,634 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:25:58" (1/1) ... [2021-02-24 04:25:58,635 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:25:58" (1/1) ... [2021-02-24 04:25:58,677 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:25:58" (1/1) ... [2021-02-24 04:25:58,687 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:25:58" (1/1) ... [2021-02-24 04:25:58,691 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:25:58" (1/1) ... [2021-02-24 04:25:58,699 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-24 04:25:58,700 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-24 04:25:58,701 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-24 04:25:58,701 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-24 04:25:58,702 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:25:58" (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 [2021-02-24 04:25:58,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-24 04:25:58,861 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-24 04:25:58,861 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-24 04:25:58,861 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-24 04:25:58,862 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-02-24 04:25:58,862 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-02-24 04:25:58,862 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-02-24 04:25:58,862 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-02-24 04:25:58,862 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-02-24 04:25:58,863 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-02-24 04:25:58,863 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-02-24 04:25:58,863 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-02-24 04:25:58,863 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-02-24 04:25:58,863 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-02-24 04:25:58,864 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-02-24 04:25:58,864 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-02-24 04:25:58,864 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-02-24 04:25:58,864 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-02-24 04:25:58,865 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-02-24 04:25:58,865 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-02-24 04:25:58,865 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-02-24 04:25:58,865 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-02-24 04:25:58,865 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-02-24 04:25:58,865 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-02-24 04:25:58,866 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-02-24 04:25:58,866 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-02-24 04:25:58,866 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-02-24 04:25:58,866 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-02-24 04:25:58,866 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-02-24 04:25:58,867 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-02-24 04:25:58,867 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-02-24 04:25:58,867 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-02-24 04:25:58,867 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-02-24 04:25:58,868 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-02-24 04:25:58,868 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-02-24 04:25:58,868 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-02-24 04:25:58,868 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-02-24 04:25:58,868 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-02-24 04:25:58,868 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-02-24 04:25:58,869 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-02-24 04:25:58,869 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-02-24 04:25:58,869 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-02-24 04:25:58,869 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-02-24 04:25:58,869 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-02-24 04:25:58,870 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-02-24 04:25:58,870 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-02-24 04:25:58,870 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-02-24 04:25:58,870 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-02-24 04:25:58,870 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-02-24 04:25:58,870 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-02-24 04:25:58,871 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-02-24 04:25:58,871 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-02-24 04:25:58,871 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-02-24 04:25:58,871 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-02-24 04:25:58,871 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-02-24 04:25:58,872 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-02-24 04:25:58,872 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-02-24 04:25:58,872 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-02-24 04:25:58,872 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2021-02-24 04:25:58,872 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-02-24 04:25:58,872 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-02-24 04:25:58,873 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-02-24 04:25:58,873 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-02-24 04:25:58,873 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-24 04:25:58,873 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-02-24 04:25:58,873 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-02-24 04:25:58,873 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-02-24 04:25:58,874 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-02-24 04:25:58,874 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-02-24 04:25:58,874 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-02-24 04:25:58,874 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-02-24 04:25:58,874 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-02-24 04:25:58,875 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-02-24 04:25:58,875 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-02-24 04:25:58,875 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-02-24 04:25:58,875 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-02-24 04:25:58,875 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-02-24 04:25:58,876 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-02-24 04:25:58,876 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-02-24 04:25:58,876 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-02-24 04:25:58,876 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-02-24 04:25:58,876 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-02-24 04:25:58,877 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-02-24 04:25:58,877 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-02-24 04:25:58,877 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-02-24 04:25:58,877 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-02-24 04:25:58,877 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-02-24 04:25:58,877 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-02-24 04:25:58,878 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-02-24 04:25:58,878 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-02-24 04:25:58,878 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-02-24 04:25:58,878 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-02-24 04:25:58,878 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-02-24 04:25:58,879 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-02-24 04:25:58,879 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-02-24 04:25:58,879 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-02-24 04:25:58,879 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-02-24 04:25:58,879 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-02-24 04:25:58,879 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-02-24 04:25:58,880 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-02-24 04:25:58,880 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-02-24 04:25:58,894 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-02-24 04:25:58,894 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-02-24 04:25:58,894 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-02-24 04:25:58,895 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-02-24 04:25:58,895 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-02-24 04:25:58,895 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-02-24 04:25:58,895 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-24 04:25:58,895 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-24 04:25:58,895 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2021-02-24 04:25:58,895 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2021-02-24 04:25:58,896 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-24 04:25:58,896 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-24 04:25:58,896 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-24 04:25:58,896 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-02-24 04:25:58,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-02-24 04:25:58,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-24 04:25:58,897 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-02-24 04:25:58,897 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-24 04:25:58,897 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-24 04:25:58,897 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-24 04:25:58,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-24 04:25:58,897 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-24 04:25:59,759 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-24 04:25:59,759 INFO L299 CfgBuilder]: Removed 15 assume(true) statements. [2021-02-24 04:25:59,761 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 04:25:59 BoogieIcfgContainer [2021-02-24 04:25:59,761 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-24 04:25:59,763 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-24 04:25:59,764 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-24 04:25:59,770 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-24 04:25:59,771 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.02 04:25:57" (1/3) ... [2021-02-24 04:25:59,772 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@730f38d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 04:25:59, skipping insertion in model container [2021-02-24 04:25:59,772 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:25:58" (2/3) ... [2021-02-24 04:25:59,772 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@730f38d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 04:25:59, skipping insertion in model container [2021-02-24 04:25:59,773 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 04:25:59" (3/3) ... [2021-02-24 04:25:59,777 INFO L111 eAbstractionObserver]: Analyzing ICFG sll-token-1.i [2021-02-24 04:25:59,786 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-24 04:25:59,792 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2021-02-24 04:25:59,813 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-02-24 04:25:59,840 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-24 04:25:59,840 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-24 04:25:59,840 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-24 04:25:59,841 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-24 04:25:59,841 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-24 04:25:59,841 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-24 04:25:59,841 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-24 04:25:59,841 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-24 04:25:59,861 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states. [2021-02-24 04:25:59,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-02-24 04:25:59,872 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:25:59,873 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] [2021-02-24 04:25:59,874 INFO L428 AbstractCegarLoop]: === Iteration 1 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:25:59,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:25:59,881 INFO L82 PathProgramCache]: Analyzing trace with hash 1147309973, now seen corresponding path program 1 times [2021-02-24 04:25:59,891 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:25:59,892 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1354628713] [2021-02-24 04:25:59,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:25:59,989 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:26:00,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:26:00,208 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:00,210 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:26:00,211 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:00,212 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:26:00,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:26:00,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:26:00,308 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:00,309 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:26:00,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 04:26:00,330 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1354628713] [2021-02-24 04:26:00,335 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:26:00,336 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-24 04:26:00,336 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476953466] [2021-02-24 04:26:00,348 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-24 04:26:00,348 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:26:00,369 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-24 04:26:00,370 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-24 04:26:00,374 INFO L87 Difference]: Start difference. First operand 104 states. Second operand 3 states. [2021-02-24 04:26:00,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:26:00,694 INFO L93 Difference]: Finished difference Result 186 states and 232 transitions. [2021-02-24 04:26:00,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-24 04:26:00,697 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2021-02-24 04:26:00,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:26:00,708 INFO L225 Difference]: With dead ends: 186 [2021-02-24 04:26:00,708 INFO L226 Difference]: Without dead ends: 87 [2021-02-24 04:26:00,713 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 [2021-02-24 04:26:00,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2021-02-24 04:26:00,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2021-02-24 04:26:00,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2021-02-24 04:26:00,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 89 transitions. [2021-02-24 04:26:00,771 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 89 transitions. Word has length 26 [2021-02-24 04:26:00,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:26:00,772 INFO L480 AbstractCegarLoop]: Abstraction has 87 states and 89 transitions. [2021-02-24 04:26:00,772 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-02-24 04:26:00,772 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 89 transitions. [2021-02-24 04:26:00,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-02-24 04:26:00,774 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:26:00,774 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] [2021-02-24 04:26:00,774 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-24 04:26:00,775 INFO L428 AbstractCegarLoop]: === Iteration 2 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:26:00,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:26:00,775 INFO L82 PathProgramCache]: Analyzing trace with hash -324345808, now seen corresponding path program 1 times [2021-02-24 04:26:00,776 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:26:00,776 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2079204666] [2021-02-24 04:26:00,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:26:00,783 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:26:00,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:26:00,870 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:00,871 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:26:00,875 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:00,876 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:26:00,883 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:00,885 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-24 04:26:00,894 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:00,895 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:26:00,902 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:00,903 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:26:00,916 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:00,918 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:26:00,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:26:00,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:26:00,999 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:01,000 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:26:01,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 04:26:01,003 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2079204666] [2021-02-24 04:26:01,003 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:26:01,004 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-02-24 04:26:01,004 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195421516] [2021-02-24 04:26:01,005 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-24 04:26:01,005 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:26:01,006 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-24 04:26:01,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-02-24 04:26:01,006 INFO L87 Difference]: Start difference. First operand 87 states and 89 transitions. Second operand 7 states. [2021-02-24 04:26:01,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:26:01,431 INFO L93 Difference]: Finished difference Result 152 states and 156 transitions. [2021-02-24 04:26:01,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-24 04:26:01,432 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 27 [2021-02-24 04:26:01,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:26:01,434 INFO L225 Difference]: With dead ends: 152 [2021-02-24 04:26:01,435 INFO L226 Difference]: Without dead ends: 150 [2021-02-24 04:26:01,436 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-02-24 04:26:01,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2021-02-24 04:26:01,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 85. [2021-02-24 04:26:01,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2021-02-24 04:26:01,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 87 transitions. [2021-02-24 04:26:01,451 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 87 transitions. Word has length 27 [2021-02-24 04:26:01,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:26:01,452 INFO L480 AbstractCegarLoop]: Abstraction has 85 states and 87 transitions. [2021-02-24 04:26:01,452 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-02-24 04:26:01,452 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 87 transitions. [2021-02-24 04:26:01,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-02-24 04:26:01,453 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:26:01,453 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] [2021-02-24 04:26:01,454 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-24 04:26:01,454 INFO L428 AbstractCegarLoop]: === Iteration 3 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:26:01,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:26:01,455 INFO L82 PathProgramCache]: Analyzing trace with hash -1680762442, now seen corresponding path program 1 times [2021-02-24 04:26:01,455 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:26:01,455 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [932469171] [2021-02-24 04:26:01,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:26:01,460 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:26:01,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:26:01,522 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:01,523 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:26:01,524 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:01,524 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:26:01,528 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:01,529 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:26:01,533 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:01,533 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:26:01,539 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:01,539 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:26:01,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:26:01,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:26:01,590 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:01,591 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:26:01,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 04:26:01,594 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [932469171] [2021-02-24 04:26:01,594 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:26:01,594 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-02-24 04:26:01,595 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29960339] [2021-02-24 04:26:01,595 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-24 04:26:01,595 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:26:01,596 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-24 04:26:01,596 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-02-24 04:26:01,596 INFO L87 Difference]: Start difference. First operand 85 states and 87 transitions. Second operand 6 states. [2021-02-24 04:26:01,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:26:01,820 INFO L93 Difference]: Finished difference Result 146 states and 150 transitions. [2021-02-24 04:26:01,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-24 04:26:01,821 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 28 [2021-02-24 04:26:01,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:26:01,826 INFO L225 Difference]: With dead ends: 146 [2021-02-24 04:26:01,826 INFO L226 Difference]: Without dead ends: 144 [2021-02-24 04:26:01,827 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-02-24 04:26:01,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2021-02-24 04:26:01,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 83. [2021-02-24 04:26:01,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2021-02-24 04:26:01,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 85 transitions. [2021-02-24 04:26:01,865 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 85 transitions. Word has length 28 [2021-02-24 04:26:01,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:26:01,866 INFO L480 AbstractCegarLoop]: Abstraction has 83 states and 85 transitions. [2021-02-24 04:26:01,866 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-02-24 04:26:01,867 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 85 transitions. [2021-02-24 04:26:01,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-02-24 04:26:01,869 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:26:01,869 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] [2021-02-24 04:26:01,871 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-24 04:26:01,872 INFO L428 AbstractCegarLoop]: === Iteration 4 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:26:01,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:26:01,873 INFO L82 PathProgramCache]: Analyzing trace with hash -1303914361, now seen corresponding path program 1 times [2021-02-24 04:26:01,873 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:26:01,874 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1534898473] [2021-02-24 04:26:01,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:26:01,885 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:26:01,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:26:02,035 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:02,036 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:26:02,044 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:02,044 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-24 04:26:02,054 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:02,054 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-24 04:26:02,064 WARN L141 QuantifierPusher]: treesize reduction 25, result has 37.5 percent of original size [2021-02-24 04:26:02,065 WARN L147 QuantifierPusher]: treesize reduction 25, result has 37.5 percent of original size 15 [2021-02-24 04:26:02,078 WARN L141 QuantifierPusher]: treesize reduction 21, result has 58.0 percent of original size [2021-02-24 04:26:02,081 WARN L147 QuantifierPusher]: treesize reduction 21, result has 58.0 percent of original size 29 [2021-02-24 04:26:02,107 WARN L141 QuantifierPusher]: treesize reduction 21, result has 57.1 percent of original size [2021-02-24 04:26:02,110 WARN L147 QuantifierPusher]: treesize reduction 21, result has 57.1 percent of original size 28 [2021-02-24 04:26:02,143 WARN L141 QuantifierPusher]: treesize reduction 21, result has 60.4 percent of original size [2021-02-24 04:26:02,145 WARN L147 QuantifierPusher]: treesize reduction 21, result has 60.4 percent of original size 32 [2021-02-24 04:26:02,176 WARN L141 QuantifierPusher]: treesize reduction 9, result has 71.9 percent of original size [2021-02-24 04:26:02,177 WARN L147 QuantifierPusher]: treesize reduction 9, result has 71.9 percent of original size 23 [2021-02-24 04:26:02,194 WARN L141 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-02-24 04:26:02,194 WARN L147 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size 13 [2021-02-24 04:26:02,210 WARN L141 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-02-24 04:26:02,213 WARN L147 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size 13 [2021-02-24 04:26:02,227 WARN L141 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-02-24 04:26:02,228 WARN L147 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size 7 [2021-02-24 04:26:02,243 WARN L141 QuantifierPusher]: treesize reduction 12, result has 7.7 percent of original size [2021-02-24 04:26:02,243 WARN L147 QuantifierPusher]: treesize reduction 12, result has 7.7 percent of original size 1 [2021-02-24 04:26:02,245 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:02,246 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:26:02,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:26:02,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:26:02,294 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:02,295 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:26:02,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 04:26:02,303 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1534898473] [2021-02-24 04:26:02,303 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:26:02,304 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-02-24 04:26:02,304 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301168765] [2021-02-24 04:26:02,304 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-02-24 04:26:02,304 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:26:02,305 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-02-24 04:26:02,305 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2021-02-24 04:26:02,305 INFO L87 Difference]: Start difference. First operand 83 states and 85 transitions. Second operand 13 states. [2021-02-24 04:26:02,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:26:02,982 INFO L93 Difference]: Finished difference Result 227 states and 233 transitions. [2021-02-24 04:26:02,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-02-24 04:26:02,982 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 35 [2021-02-24 04:26:02,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:26:02,985 INFO L225 Difference]: With dead ends: 227 [2021-02-24 04:26:02,985 INFO L226 Difference]: Without dead ends: 181 [2021-02-24 04:26:02,987 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=145, Invalid=361, Unknown=0, NotChecked=0, Total=506 [2021-02-24 04:26:02,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2021-02-24 04:26:03,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 97. [2021-02-24 04:26:03,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2021-02-24 04:26:03,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 100 transitions. [2021-02-24 04:26:03,029 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 100 transitions. Word has length 35 [2021-02-24 04:26:03,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:26:03,029 INFO L480 AbstractCegarLoop]: Abstraction has 97 states and 100 transitions. [2021-02-24 04:26:03,030 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2021-02-24 04:26:03,030 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 100 transitions. [2021-02-24 04:26:03,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-02-24 04:26:03,034 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:26:03,034 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] [2021-02-24 04:26:03,035 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-24 04:26:03,036 INFO L428 AbstractCegarLoop]: === Iteration 5 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:26:03,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:26:03,036 INFO L82 PathProgramCache]: Analyzing trace with hash -1391741209, now seen corresponding path program 1 times [2021-02-24 04:26:03,037 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:26:03,037 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1133107635] [2021-02-24 04:26:03,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:26:03,044 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:26:03,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-24 04:26:03,097 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-24 04:26:03,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-24 04:26:03,119 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-24 04:26:03,154 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2021-02-24 04:26:03,154 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-24 04:26:03,155 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-24 04:26:03,175 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.02 04:26:03 BoogieIcfgContainer [2021-02-24 04:26:03,175 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-24 04:26:03,177 INFO L168 Benchmark]: Toolchain (without parser) took 5182.13 ms. Allocated memory was 161.5 MB in the beginning and 222.3 MB in the end (delta: 60.8 MB). Free memory was 137.6 MB in the beginning and 132.9 MB in the end (delta: 4.7 MB). Peak memory consumption was 66.1 MB. Max. memory is 8.0 GB. [2021-02-24 04:26:03,178 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 161.5 MB. Free memory is still 134.0 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-24 04:26:03,178 INFO L168 Benchmark]: CACSL2BoogieTranslator took 563.06 ms. Allocated memory is still 161.5 MB. Free memory was 136.3 MB in the beginning and 113.8 MB in the end (delta: 22.4 MB). Peak memory consumption was 23.1 MB. Max. memory is 8.0 GB. [2021-02-24 04:26:03,179 INFO L168 Benchmark]: Boogie Preprocessor took 127.40 ms. Allocated memory is still 161.5 MB. Free memory was 113.8 MB in the beginning and 111.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-02-24 04:26:03,180 INFO L168 Benchmark]: RCFGBuilder took 1061.41 ms. Allocated memory is still 161.5 MB. Free memory was 110.9 MB in the beginning and 98.6 MB in the end (delta: 12.3 MB). Peak memory consumption was 12.3 MB. Max. memory is 8.0 GB. [2021-02-24 04:26:03,181 INFO L168 Benchmark]: TraceAbstraction took 3411.99 ms. Allocated memory was 161.5 MB in the beginning and 222.3 MB in the end (delta: 60.8 MB). Free memory was 98.1 MB in the beginning and 132.9 MB in the end (delta: -34.8 MB). Peak memory consumption was 26.5 MB. Max. memory is 8.0 GB. [2021-02-24 04:26:03,184 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 161.5 MB. Free memory is still 134.0 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 563.06 ms. Allocated memory is still 161.5 MB. Free memory was 136.3 MB in the beginning and 113.8 MB in the end (delta: 22.4 MB). Peak memory consumption was 23.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 127.40 ms. Allocated memory is still 161.5 MB. Free memory was 113.8 MB in the beginning and 111.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1061.41 ms. Allocated memory is still 161.5 MB. Free memory was 110.9 MB in the beginning and 98.6 MB in the end (delta: 12.3 MB). Peak memory consumption was 12.3 MB. Max. memory is 8.0 GB. * TraceAbstraction took 3411.99 ms. Allocated memory was 161.5 MB in the beginning and 222.3 MB in the end (delta: 60.8 MB). Free memory was 98.1 MB in the beginning and 132.9 MB in the end (delta: -34.8 MB). Peak memory consumption was 26.5 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1031]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1003] SLL* head = malloc(sizeof(SLL)); [L1004] head->next = ((void*)0) [L1005] head->data = 0 [L1007] SLL* x = head; [L1010] COND FALSE !(__VERIFIER_nondet_int()) [L1018] x->data = 1 [L1019] x->next = malloc(sizeof(SLL)) [L1020] EXPR x->next [L1020] x->next->data = 2 [L1022] x = head [L1024] COND FALSE !(!(((void*)0) != x)) [L1026] EXPR x->data [L1026] COND FALSE !(1 != x->data) [L1031] EXPR x->data [L1031] COND TRUE !(2 == x->data) [L1031] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 109 locations, 6 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 3.3s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 360 SDtfs, 785 SDslu, 825 SDs, 0 SdLazy, 791 SolverSat, 60 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 53 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=104occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 210 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...