/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/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/list-ext-properties/simple-ext.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 20:39:27,555 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 20:39:27,557 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 20:39:27,598 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 20:39:27,599 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 20:39:27,600 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 20:39:27,602 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 20:39:27,604 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 20:39:27,621 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 20:39:27,627 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 20:39:27,629 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 20:39:27,631 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 20:39:27,632 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 20:39:27,635 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 20:39:27,637 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 20:39:27,640 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 20:39:27,644 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 20:39:27,646 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 20:39:27,652 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 20:39:27,657 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 20:39:27,662 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 20:39:27,664 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 20:39:27,666 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 20:39:27,668 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 20:39:27,675 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-23 20:39:27,675 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-23 20:39:27,675 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-23 20:39:27,681 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-23 20:39:27,684 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-23 20:39:27,685 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-23 20:39:27,685 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-23 20:39:27,686 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-23 20:39:27,687 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-23 20:39:27,688 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-23 20:39:27,689 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-23 20:39:27,690 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-23 20:39:27,690 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-23 20:39:27,691 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-23 20:39:27,691 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 20:39:27,692 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 20:39:27,693 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 20:39:27,694 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-10-23 20:39:27,707 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 20:39:27,707 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 20:39:27,709 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 20:39:27,709 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 20:39:27,710 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 20:39:27,710 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 20:39:27,710 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 20:39:27,710 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 20:39:27,710 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 20:39:27,711 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 20:39:27,711 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 20:39:27,711 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 20:39:27,711 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 20:39:27,711 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 20:39:27,712 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 20:39:27,712 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-23 20:39:27,712 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 20:39:27,712 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 20:39:27,713 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 20:39:27,713 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 20:39:27,713 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-23 20:39:27,713 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 20:39:27,714 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 20:39:28,085 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 20:39:28,110 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 20:39:28,113 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 20:39:28,115 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 20:39:28,115 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 20:39:28,116 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-ext-properties/simple-ext.i [2020-10-23 20:39:28,209 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c8a65225/571fef7dbb2b4c479e7d0d32e25f8a4a/FLAGa6dcf0c0a [2020-10-23 20:39:29,029 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 20:39:29,030 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/list-ext-properties/simple-ext.i [2020-10-23 20:39:29,053 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c8a65225/571fef7dbb2b4c479e7d0d32e25f8a4a/FLAGa6dcf0c0a [2020-10-23 20:39:29,284 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c8a65225/571fef7dbb2b4c479e7d0d32e25f8a4a [2020-10-23 20:39:29,293 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 20:39:29,300 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 20:39:29,302 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 20:39:29,302 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 20:39:29,306 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 20:39:29,306 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:39:29" (1/1) ... [2020-10-23 20:39:29,310 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@487ef363 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:39:29, skipping insertion in model container [2020-10-23 20:39:29,311 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:39:29" (1/1) ... [2020-10-23 20:39:29,320 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 20:39:29,357 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 20:39:29,698 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 20:39:29,715 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 20:39:29,800 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 20:39:29,864 INFO L208 MainTranslator]: Completed translation [2020-10-23 20:39:29,864 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:39:29 WrapperNode [2020-10-23 20:39:29,865 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 20:39:29,866 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 20:39:29,866 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 20:39:29,866 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 20:39:29,880 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:39:29" (1/1) ... [2020-10-23 20:39:29,880 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:39:29" (1/1) ... [2020-10-23 20:39:29,896 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:39:29" (1/1) ... [2020-10-23 20:39:29,897 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:39:29" (1/1) ... [2020-10-23 20:39:29,915 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:39:29" (1/1) ... [2020-10-23 20:39:29,921 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:39:29" (1/1) ... [2020-10-23 20:39:29,925 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:39:29" (1/1) ... [2020-10-23 20:39:29,932 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 20:39:29,933 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 20:39:29,933 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 20:39:29,933 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 20:39:29,934 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:39:29" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 20:39:30,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 20:39:30,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 20:39:30,023 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 20:39:30,023 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-10-23 20:39:30,023 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-10-23 20:39:30,023 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2020-10-23 20:39:30,023 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2020-10-23 20:39:30,023 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2020-10-23 20:39:30,024 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2020-10-23 20:39:30,024 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 20:39:30,024 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 20:39:30,024 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 20:39:30,024 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-23 20:39:30,024 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-23 20:39:30,025 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 20:39:30,025 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 20:39:30,025 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 20:39:30,025 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-10-23 20:39:30,025 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-10-23 20:39:30,026 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-10-23 20:39:30,026 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-10-23 20:39:30,026 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-10-23 20:39:30,026 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-10-23 20:39:30,026 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-10-23 20:39:30,026 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-10-23 20:39:30,027 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-10-23 20:39:30,027 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-10-23 20:39:30,027 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-10-23 20:39:30,027 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-10-23 20:39:30,027 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-10-23 20:39:30,027 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-10-23 20:39:30,028 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-10-23 20:39:30,028 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-10-23 20:39:30,028 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-10-23 20:39:30,028 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-10-23 20:39:30,028 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2020-10-23 20:39:30,028 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2020-10-23 20:39:30,029 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2020-10-23 20:39:30,029 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-10-23 20:39:30,029 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-10-23 20:39:30,029 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-10-23 20:39:30,029 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-10-23 20:39:30,029 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-10-23 20:39:30,029 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-10-23 20:39:30,030 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-10-23 20:39:30,030 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-10-23 20:39:30,030 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-10-23 20:39:30,030 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-10-23 20:39:30,030 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-10-23 20:39:30,030 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-10-23 20:39:30,031 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-10-23 20:39:30,031 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-10-23 20:39:30,031 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-10-23 20:39:30,031 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-10-23 20:39:30,031 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-10-23 20:39:30,031 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-10-23 20:39:30,031 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-10-23 20:39:30,032 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-10-23 20:39:30,032 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-10-23 20:39:30,032 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-10-23 20:39:30,032 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-10-23 20:39:30,032 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-10-23 20:39:30,032 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-10-23 20:39:30,033 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-10-23 20:39:30,033 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-10-23 20:39:30,033 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-10-23 20:39:30,033 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-10-23 20:39:30,033 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-10-23 20:39:30,033 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-10-23 20:39:30,034 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-10-23 20:39:30,034 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-10-23 20:39:30,034 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-10-23 20:39:30,034 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-23 20:39:30,034 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-23 20:39:30,034 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-10-23 20:39:30,035 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-23 20:39:30,035 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-10-23 20:39:30,035 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-10-23 20:39:30,035 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-10-23 20:39:30,035 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-10-23 20:39:30,035 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-10-23 20:39:30,036 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-10-23 20:39:30,036 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-10-23 20:39:30,036 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-23 20:39:30,036 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-10-23 20:39:30,036 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-10-23 20:39:30,036 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-10-23 20:39:30,036 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-10-23 20:39:30,037 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-10-23 20:39:30,037 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-10-23 20:39:30,037 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-10-23 20:39:30,037 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-10-23 20:39:30,037 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-10-23 20:39:30,037 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-10-23 20:39:30,038 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-10-23 20:39:30,038 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-10-23 20:39:30,038 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-10-23 20:39:30,038 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-10-23 20:39:30,038 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-10-23 20:39:30,038 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-10-23 20:39:30,038 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-10-23 20:39:30,039 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-10-23 20:39:30,039 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-10-23 20:39:30,039 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-10-23 20:39:30,039 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-10-23 20:39:30,039 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-10-23 20:39:30,039 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-10-23 20:39:30,039 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-10-23 20:39:30,040 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-10-23 20:39:30,040 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-10-23 20:39:30,040 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-10-23 20:39:30,040 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-10-23 20:39:30,040 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-10-23 20:39:30,040 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-10-23 20:39:30,040 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-10-23 20:39:30,041 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-10-23 20:39:30,041 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-10-23 20:39:30,041 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-10-23 20:39:30,041 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-10-23 20:39:30,041 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-10-23 20:39:30,041 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-10-23 20:39:30,041 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-10-23 20:39:30,042 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-10-23 20:39:30,042 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2020-10-23 20:39:30,042 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 20:39:30,042 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-23 20:39:30,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 20:39:30,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-23 20:39:30,043 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-23 20:39:30,043 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 20:39:30,043 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 20:39:30,043 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 20:39:30,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 20:39:30,043 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 20:39:30,426 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2020-10-23 20:39:30,655 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 20:39:30,656 INFO L298 CfgBuilder]: Removed 3 assume(true) statements. [2020-10-23 20:39:30,658 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:39:30 BoogieIcfgContainer [2020-10-23 20:39:30,658 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 20:39:30,660 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 20:39:30,660 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 20:39:30,664 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 20:39:30,665 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 08:39:29" (1/3) ... [2020-10-23 20:39:30,666 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14adfb43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:39:30, skipping insertion in model container [2020-10-23 20:39:30,666 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:39:29" (2/3) ... [2020-10-23 20:39:30,666 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14adfb43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:39:30, skipping insertion in model container [2020-10-23 20:39:30,667 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:39:30" (3/3) ... [2020-10-23 20:39:30,669 INFO L111 eAbstractionObserver]: Analyzing ICFG simple-ext.i [2020-10-23 20:39:30,684 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-23 20:39:30,690 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-23 20:39:30,707 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-23 20:39:30,735 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 20:39:30,735 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 20:39:30,736 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-10-23 20:39:30,736 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 20:39:30,736 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 20:39:30,736 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 20:39:30,736 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 20:39:30,736 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 20:39:30,754 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states. [2020-10-23 20:39:30,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-23 20:39:30,766 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:39:30,767 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 20:39:30,767 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:39:30,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:39:30,774 INFO L82 PathProgramCache]: Analyzing trace with hash 1927809256, now seen corresponding path program 1 times [2020-10-23 20:39:30,785 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:39:30,785 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [306245013] [2020-10-23 20:39:30,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:39:30,892 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:39:30,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:39:31,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:39:31,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:39:31,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 20:39:31,114 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [306245013] [2020-10-23 20:39:31,116 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:39:31,117 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-23 20:39:31,117 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765211695] [2020-10-23 20:39:31,123 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-23 20:39:31,123 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:39:31,140 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-23 20:39:31,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 20:39:31,144 INFO L87 Difference]: Start difference. First operand 76 states. Second operand 3 states. [2020-10-23 20:39:31,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:39:31,350 INFO L93 Difference]: Finished difference Result 107 states and 123 transitions. [2020-10-23 20:39:31,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 20:39:31,352 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 29 [2020-10-23 20:39:31,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:39:31,360 INFO L225 Difference]: With dead ends: 107 [2020-10-23 20:39:31,360 INFO L226 Difference]: Without dead ends: 56 [2020-10-23 20:39:31,364 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 [2020-10-23 20:39:31,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2020-10-23 20:39:31,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2020-10-23 20:39:31,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-10-23 20:39:31,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 58 transitions. [2020-10-23 20:39:31,409 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 58 transitions. Word has length 29 [2020-10-23 20:39:31,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:39:31,409 INFO L481 AbstractCegarLoop]: Abstraction has 56 states and 58 transitions. [2020-10-23 20:39:31,410 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-23 20:39:31,410 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 58 transitions. [2020-10-23 20:39:31,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-10-23 20:39:31,411 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:39:31,411 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] [2020-10-23 20:39:31,412 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 20:39:31,412 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:39:31,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:39:31,413 INFO L82 PathProgramCache]: Analyzing trace with hash -551418169, now seen corresponding path program 1 times [2020-10-23 20:39:31,413 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:39:31,413 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1022887393] [2020-10-23 20:39:31,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:39:31,418 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:39:31,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:39:31,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:39:31,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:39:31,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 20:39:31,533 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1022887393] [2020-10-23 20:39:31,533 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:39:31,534 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-23 20:39:31,534 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293790760] [2020-10-23 20:39:31,535 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-23 20:39:31,535 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:39:31,536 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-23 20:39:31,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-23 20:39:31,536 INFO L87 Difference]: Start difference. First operand 56 states and 58 transitions. Second operand 5 states. [2020-10-23 20:39:31,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:39:31,699 INFO L93 Difference]: Finished difference Result 129 states and 136 transitions. [2020-10-23 20:39:31,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-23 20:39:31,699 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 33 [2020-10-23 20:39:31,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:39:31,703 INFO L225 Difference]: With dead ends: 129 [2020-10-23 20:39:31,703 INFO L226 Difference]: Without dead ends: 90 [2020-10-23 20:39:31,705 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-23 20:39:31,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2020-10-23 20:39:31,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 58. [2020-10-23 20:39:31,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2020-10-23 20:39:31,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 60 transitions. [2020-10-23 20:39:31,718 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 60 transitions. Word has length 33 [2020-10-23 20:39:31,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:39:31,718 INFO L481 AbstractCegarLoop]: Abstraction has 58 states and 60 transitions. [2020-10-23 20:39:31,718 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-23 20:39:31,718 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 60 transitions. [2020-10-23 20:39:31,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-10-23 20:39:31,720 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:39:31,720 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] [2020-10-23 20:39:31,720 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 20:39:31,720 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:39:31,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:39:31,721 INFO L82 PathProgramCache]: Analyzing trace with hash 773074084, now seen corresponding path program 1 times [2020-10-23 20:39:31,721 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:39:31,722 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1554237981] [2020-10-23 20:39:31,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:39:31,726 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:39:31,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 20:39:31,756 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 20:39:31,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 20:39:31,779 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 20:39:31,824 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-23 20:39:31,825 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-23 20:39:31,826 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-23 20:39:31,847 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 08:39:31 BoogieIcfgContainer [2020-10-23 20:39:31,848 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 20:39:31,854 INFO L168 Benchmark]: Toolchain (without parser) took 2554.22 ms. Allocated memory is still 155.2 MB. Free memory was 130.8 MB in the beginning and 74.9 MB in the end (delta: 55.9 MB). Peak memory consumption was 56.5 MB. Max. memory is 8.0 GB. [2020-10-23 20:39:31,856 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 155.2 MB. Free memory was 128.6 MB in the beginning and 128.5 MB in the end (delta: 81.8 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 20:39:31,859 INFO L168 Benchmark]: CACSL2BoogieTranslator took 563.44 ms. Allocated memory is still 155.2 MB. Free memory was 130.2 MB in the beginning and 108.4 MB in the end (delta: 21.8 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2020-10-23 20:39:31,860 INFO L168 Benchmark]: Boogie Preprocessor took 66.34 ms. Allocated memory is still 155.2 MB. Free memory was 108.4 MB in the beginning and 105.8 MB in the end (delta: 2.6 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-10-23 20:39:31,861 INFO L168 Benchmark]: RCFGBuilder took 725.49 ms. Allocated memory is still 155.2 MB. Free memory was 105.8 MB in the beginning and 93.3 MB in the end (delta: 12.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 8.0 GB. [2020-10-23 20:39:31,862 INFO L168 Benchmark]: TraceAbstraction took 1187.68 ms. Allocated memory is still 155.2 MB. Free memory was 92.8 MB in the beginning and 74.9 MB in the end (delta: 17.9 MB). Peak memory consumption was 17.9 MB. Max. memory is 8.0 GB. [2020-10-23 20:39:31,874 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 155.2 MB. Free memory was 128.6 MB in the beginning and 128.5 MB in the end (delta: 81.8 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 563.44 ms. Allocated memory is still 155.2 MB. Free memory was 130.2 MB in the beginning and 108.4 MB in the end (delta: 21.8 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 66.34 ms. Allocated memory is still 155.2 MB. Free memory was 108.4 MB in the beginning and 105.8 MB in the end (delta: 2.6 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 725.49 ms. Allocated memory is still 155.2 MB. Free memory was 105.8 MB in the beginning and 93.3 MB in the end (delta: 12.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1187.68 ms. Allocated memory is still 155.2 MB. Free memory was 92.8 MB in the beginning and 74.9 MB in the end (delta: 17.9 MB). Peak memory consumption was 17.9 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 12]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L532] List a = (List) malloc(sizeof(struct node)); [L533] COND FALSE !(a == 0) [L534] List t; [L535] List p = a; [L536] int i = 0; [L537] i < 30 && __VERIFIER_nondet_int() [L537] i < 30 && __VERIFIER_nondet_int() [L537] COND FALSE !(i < 30 && __VERIFIER_nondet_int()) [L545] p->h = i [L546] p->n = 0 [L547] p = a [L548] i = 0 [L549] COND TRUE p!=0 [L550] EXPR p->h [L550] COND TRUE p->h != 1 [L551] CALL reach_error() [L12] COND FALSE !(0) [L12] __assert_fail ("0", "simple-ext.c", 3, __extension__ __PRETTY_FUNCTION__) - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 99 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.0s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 127 SDtfs, 43 SDslu, 95 SDs, 0 SdLazy, 144 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=76occurred 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, 2 MinimizatonAttempts, 32 StatesRemovedByMinimization, 1 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...