/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/heap-data/running_example.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-06 22:59:36,871 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-06 22:59:36,873 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-06 22:59:36,888 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-06 22:59:36,889 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-06 22:59:36,891 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-06 22:59:36,892 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-06 22:59:36,901 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-06 22:59:36,905 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-06 22:59:36,909 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-06 22:59:36,910 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-06 22:59:36,911 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-06 22:59:36,912 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-06 22:59:36,913 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-06 22:59:36,915 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-06 22:59:36,917 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-06 22:59:36,918 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-06 22:59:36,919 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-06 22:59:36,920 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-06 22:59:36,922 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-06 22:59:36,923 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-06 22:59:36,924 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-06 22:59:36,925 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-06 22:59:36,926 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-06 22:59:36,927 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-06 22:59:36,928 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-06 22:59:36,928 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-06 22:59:36,929 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-06 22:59:36,929 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-06 22:59:36,930 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-06 22:59:36,930 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-06 22:59:36,932 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-06 22:59:36,933 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-06 22:59:36,934 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-06 22:59:36,934 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-06 22:59:36,935 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-06 22:59:36,937 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-06 22:59:36,937 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-06 22:59:36,937 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-06 22:59:36,938 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-06 22:59:36,939 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-06 22:59:36,940 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-06 22:59:36,973 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-06 22:59:36,973 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-06 22:59:36,975 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-06 22:59:36,978 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-06 22:59:36,978 INFO L138 SettingsManager]: * Use SBE=true [2019-11-06 22:59:36,978 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-06 22:59:36,978 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-06 22:59:36,979 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-06 22:59:36,979 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-06 22:59:36,979 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-06 22:59:36,979 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-06 22:59:36,979 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-06 22:59:36,980 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-06 22:59:36,980 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-06 22:59:36,980 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-06 22:59:36,980 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-06 22:59:36,980 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-06 22:59:36,980 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-06 22:59:36,981 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-06 22:59:36,984 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-06 22:59:36,984 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-06 22:59:36,984 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-06 22:59:36,984 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-06 22:59:36,985 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-06 22:59:36,985 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-06 22:59:36,985 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-06 22:59:36,985 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-06 22:59:36,985 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-06 22:59:36,986 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-11-06 22:59:37,238 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-06 22:59:37,251 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-06 22:59:37,255 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-06 22:59:37,256 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-06 22:59:37,257 INFO L275 PluginConnector]: CDTParser initialized [2019-11-06 22:59:37,257 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/heap-data/running_example.i [2019-11-06 22:59:37,333 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d68ce9412/926e3168a8f7416da1224da6e5a055b8/FLAG2d4ba19b2 [2019-11-06 22:59:37,915 INFO L306 CDTParser]: Found 1 translation units. [2019-11-06 22:59:37,916 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/heap-data/running_example.i [2019-11-06 22:59:37,932 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d68ce9412/926e3168a8f7416da1224da6e5a055b8/FLAG2d4ba19b2 [2019-11-06 22:59:38,205 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d68ce9412/926e3168a8f7416da1224da6e5a055b8 [2019-11-06 22:59:38,216 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-06 22:59:38,217 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-06 22:59:38,218 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-06 22:59:38,219 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-06 22:59:38,224 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-06 22:59:38,225 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:59:38" (1/1) ... [2019-11-06 22:59:38,228 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@523f6781 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:59:38, skipping insertion in model container [2019-11-06 22:59:38,229 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:59:38" (1/1) ... [2019-11-06 22:59:38,238 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-06 22:59:38,290 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-06 22:59:38,795 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-06 22:59:38,804 INFO L188 MainTranslator]: Completed pre-run [2019-11-06 22:59:38,841 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-06 22:59:38,896 INFO L192 MainTranslator]: Completed translation [2019-11-06 22:59:38,896 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:59:38 WrapperNode [2019-11-06 22:59:38,896 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-06 22:59:38,897 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-06 22:59:38,897 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-06 22:59:38,897 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-06 22:59:38,912 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:59:38" (1/1) ... [2019-11-06 22:59:38,912 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:59:38" (1/1) ... [2019-11-06 22:59:38,929 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:59:38" (1/1) ... [2019-11-06 22:59:38,934 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:59:38" (1/1) ... [2019-11-06 22:59:38,960 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:59:38" (1/1) ... [2019-11-06 22:59:38,967 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:59:38" (1/1) ... [2019-11-06 22:59:38,970 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:59:38" (1/1) ... [2019-11-06 22:59:38,978 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-06 22:59:38,978 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-06 22:59:38,978 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-06 22:59:38,978 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-06 22:59:38,979 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:59:38" (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 [2019-11-06 22:59:39,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-06 22:59:39,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-06 22:59:39,046 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-06 22:59:39,046 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-06 22:59:39,046 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-06 22:59:39,046 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-06 22:59:39,046 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-06 22:59:39,047 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-06 22:59:39,047 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-06 22:59:39,047 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-06 22:59:39,047 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-06 22:59:39,047 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-06 22:59:39,048 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-06 22:59:39,048 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-06 22:59:39,048 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-06 22:59:39,048 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-06 22:59:39,048 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-06 22:59:39,048 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-06 22:59:39,048 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-06 22:59:39,049 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-06 22:59:39,049 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-06 22:59:39,049 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-06 22:59:39,049 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-06 22:59:39,049 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-06 22:59:39,049 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-06 22:59:39,050 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-06 22:59:39,050 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-06 22:59:39,050 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-06 22:59:39,050 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-06 22:59:39,050 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-06 22:59:39,050 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-06 22:59:39,051 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-06 22:59:39,051 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-06 22:59:39,051 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-06 22:59:39,051 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-06 22:59:39,051 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-06 22:59:39,051 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-06 22:59:39,052 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-06 22:59:39,052 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-06 22:59:39,052 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-06 22:59:39,052 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-06 22:59:39,052 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-06 22:59:39,052 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-06 22:59:39,053 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-06 22:59:39,053 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-06 22:59:39,053 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-06 22:59:39,053 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-06 22:59:39,053 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-06 22:59:39,053 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-06 22:59:39,053 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-06 22:59:39,054 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-06 22:59:39,054 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-06 22:59:39,054 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-06 22:59:39,054 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-06 22:59:39,054 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-06 22:59:39,054 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-06 22:59:39,054 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-06 22:59:39,055 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-06 22:59:39,055 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-06 22:59:39,055 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-06 22:59:39,055 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-06 22:59:39,055 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-06 22:59:39,055 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-06 22:59:39,056 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-11-06 22:59:39,056 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-06 22:59:39,056 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-06 22:59:39,056 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-06 22:59:39,056 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-06 22:59:39,056 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-06 22:59:39,056 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-06 22:59:39,057 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-06 22:59:39,057 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-06 22:59:39,057 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-06 22:59:39,057 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-06 22:59:39,057 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-06 22:59:39,057 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-06 22:59:39,058 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-06 22:59:39,058 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-06 22:59:39,058 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-06 22:59:39,058 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-06 22:59:39,058 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-06 22:59:39,058 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-06 22:59:39,058 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-06 22:59:39,059 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-06 22:59:39,059 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-06 22:59:39,059 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-06 22:59:39,059 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-06 22:59:39,059 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-06 22:59:39,059 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-06 22:59:39,060 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-06 22:59:39,060 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-06 22:59:39,060 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-06 22:59:39,060 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-06 22:59:39,060 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-06 22:59:39,060 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-06 22:59:39,060 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-06 22:59:39,061 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-06 22:59:39,061 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-06 22:59:39,061 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-06 22:59:39,061 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-06 22:59:39,061 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-06 22:59:39,061 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-06 22:59:39,061 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-06 22:59:39,062 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-06 22:59:39,062 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-06 22:59:39,062 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-06 22:59:39,062 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-06 22:59:39,062 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-06 22:59:39,062 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-06 22:59:39,062 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-06 22:59:39,062 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-06 22:59:39,062 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-06 22:59:39,063 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-06 22:59:39,063 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-06 22:59:39,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-06 22:59:39,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-06 22:59:39,063 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-06 22:59:39,063 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-06 22:59:39,063 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-06 22:59:39,064 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-06 22:59:39,064 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-06 22:59:39,542 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-06 22:59:39,543 INFO L284 CfgBuilder]: Removed 3 assume(true) statements. [2019-11-06 22:59:39,544 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:59:39 BoogieIcfgContainer [2019-11-06 22:59:39,544 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-06 22:59:39,545 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-06 22:59:39,546 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-06 22:59:39,549 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-06 22:59:39,549 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:59:38" (1/3) ... [2019-11-06 22:59:39,550 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12b10cad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:59:39, skipping insertion in model container [2019-11-06 22:59:39,550 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:59:38" (2/3) ... [2019-11-06 22:59:39,551 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12b10cad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:59:39, skipping insertion in model container [2019-11-06 22:59:39,551 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:59:39" (3/3) ... [2019-11-06 22:59:39,553 INFO L109 eAbstractionObserver]: Analyzing ICFG running_example.i [2019-11-06 22:59:39,563 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-06 22:59:39,571 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-06 22:59:39,582 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-06 22:59:39,604 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-06 22:59:39,604 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-06 22:59:39,605 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-06 22:59:39,605 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-06 22:59:39,605 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-06 22:59:39,605 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-06 22:59:39,605 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-06 22:59:39,606 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-06 22:59:39,623 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2019-11-06 22:59:39,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-06 22:59:39,629 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:59:39,629 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 22:59:39,631 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:59:39,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:59:39,637 INFO L82 PathProgramCache]: Analyzing trace with hash 1790475303, now seen corresponding path program 1 times [2019-11-06 22:59:39,646 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-06 22:59:39,647 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100759053] [2019-11-06 22:59:39,647 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:59:39,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:59:39,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 22:59:39,796 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100759053] [2019-11-06 22:59:39,797 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:59:39,797 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-06 22:59:39,798 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264574837] [2019-11-06 22:59:39,804 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-06 22:59:39,805 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-06 22:59:39,820 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-06 22:59:39,821 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-06 22:59:39,823 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 2 states. [2019-11-06 22:59:39,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:59:39,844 INFO L93 Difference]: Finished difference Result 32 states and 48 transitions. [2019-11-06 22:59:39,844 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-06 22:59:39,846 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2019-11-06 22:59:39,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:59:39,854 INFO L225 Difference]: With dead ends: 32 [2019-11-06 22:59:39,855 INFO L226 Difference]: Without dead ends: 19 [2019-11-06 22:59:39,858 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-06 22:59:39,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2019-11-06 22:59:39,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2019-11-06 22:59:39,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-11-06 22:59:39,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 24 transitions. [2019-11-06 22:59:39,898 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 24 transitions. Word has length 12 [2019-11-06 22:59:39,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:59:39,899 INFO L462 AbstractCegarLoop]: Abstraction has 19 states and 24 transitions. [2019-11-06 22:59:39,899 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-06 22:59:39,899 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 24 transitions. [2019-11-06 22:59:39,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-06 22:59:39,900 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:59:39,900 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 22:59:39,900 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:59:39,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:59:39,901 INFO L82 PathProgramCache]: Analyzing trace with hash -734348207, now seen corresponding path program 1 times [2019-11-06 22:59:39,901 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-06 22:59:39,902 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652569085] [2019-11-06 22:59:39,902 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:59:39,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:59:40,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 22:59:40,057 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652569085] [2019-11-06 22:59:40,058 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:59:40,060 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-06 22:59:40,060 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675642395] [2019-11-06 22:59:40,062 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-06 22:59:40,062 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-06 22:59:40,062 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-06 22:59:40,063 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-11-06 22:59:40,063 INFO L87 Difference]: Start difference. First operand 19 states and 24 transitions. Second operand 6 states. [2019-11-06 22:59:40,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:59:40,231 INFO L93 Difference]: Finished difference Result 41 states and 55 transitions. [2019-11-06 22:59:40,232 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-06 22:59:40,232 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2019-11-06 22:59:40,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:59:40,235 INFO L225 Difference]: With dead ends: 41 [2019-11-06 22:59:40,235 INFO L226 Difference]: Without dead ends: 32 [2019-11-06 22:59:40,236 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-11-06 22:59:40,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2019-11-06 22:59:40,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 27. [2019-11-06 22:59:40,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-11-06 22:59:40,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 35 transitions. [2019-11-06 22:59:40,243 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 35 transitions. Word has length 14 [2019-11-06 22:59:40,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:59:40,244 INFO L462 AbstractCegarLoop]: Abstraction has 27 states and 35 transitions. [2019-11-06 22:59:40,244 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-06 22:59:40,244 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 35 transitions. [2019-11-06 22:59:40,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-11-06 22:59:40,245 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:59:40,245 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 22:59:40,246 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:59:40,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:59:40,246 INFO L82 PathProgramCache]: Analyzing trace with hash 147079127, now seen corresponding path program 1 times [2019-11-06 22:59:40,246 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-06 22:59:40,246 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679673732] [2019-11-06 22:59:40,247 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:59:40,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:59:40,504 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 22:59:40,504 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679673732] [2019-11-06 22:59:40,505 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [826615998] [2019-11-06 22:59:40,505 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-06 22:59:40,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:59:40,643 INFO L256 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 25 conjunts are in the unsatisfiable core [2019-11-06 22:59:40,653 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-06 22:59:40,752 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-06 22:59:40,752 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-06 22:59:40,777 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-06 22:59:40,784 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2019-11-06 22:59:40,785 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-06 22:59:40,796 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-06 22:59:40,796 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-06 22:59:40,796 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:27, output treesize:22 [2019-11-06 22:59:40,854 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-06 22:59:40,854 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 15 [2019-11-06 22:59:40,856 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-06 22:59:40,883 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-06 22:59:40,893 INFO L496 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-06 22:59:40,915 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-06 22:59:40,922 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-06 22:59:40,927 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2019-11-06 22:59:40,928 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-11-06 22:59:40,940 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-06 22:59:40,953 INFO L341 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2019-11-06 22:59:40,954 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 27 [2019-11-06 22:59:40,955 INFO L496 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-11-06 22:59:40,968 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-06 22:59:40,969 INFO L496 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-06 22:59:40,969 INFO L221 ElimStorePlain]: Needed 5 recursive calls to eliminate 8 variables, input treesize:73, output treesize:11 [2019-11-06 22:59:41,013 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-06 22:59:41,032 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 22:59:41,032 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-06 22:59:41,036 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-06 22:59:41,076 INFO L392 ElimStorePlain]: Different costs {2=[|v_#memory_int_21|], 3=[|v_#memory_int_22|]} [2019-11-06 22:59:41,081 INFO L496 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-06 22:59:41,100 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-06 22:59:41,104 INFO L496 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-06 22:59:41,114 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-06 22:59:41,115 INFO L496 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: 5 dim-0 vars, and 1 xjuncts. [2019-11-06 22:59:41,116 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:62, output treesize:47 [2019-11-06 22:59:41,190 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 22:59:41,191 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [1099075683] [2019-11-06 22:59:41,198 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 19 [2019-11-06 22:59:41,236 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-11-06 22:59:41,236 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-11-06 22:59:41,303 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-11-06 22:59:41,305 INFO L272 AbstractInterpreter]: Visited 6 different actions 6 times. Never merged. Never widened. Performed 19 root evaluator evaluations with a maximum evaluation depth of 0. Performed 19 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 32 variables. [2019-11-06 22:59:41,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:59:41,309 INFO L536 sIntCurrentIteration]: Generating AbsInt predicates [2019-11-06 22:59:41,354 INFO L227 lantSequenceWeakener]: Weakened 4 states. On average, predicates are now at 100% of their original sizes. [2019-11-06 22:59:41,354 INFO L551 sIntCurrentIteration]: Unifying AI predicates [2019-11-06 22:59:41,356 INFO L553 sIntCurrentIteration]: We unified 17 AI predicates to 17 [2019-11-06 22:59:41,356 INFO L562 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-11-06 22:59:41,357 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-11-06 22:59:41,357 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [7, 6, 6] total 12 [2019-11-06 22:59:41,358 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210206229] [2019-11-06 22:59:41,358 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-06 22:59:41,358 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-06 22:59:41,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-06 22:59:41,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2019-11-06 22:59:41,359 INFO L87 Difference]: Start difference. First operand 27 states and 35 transitions. Second operand 2 states. [2019-11-06 22:59:41,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:59:41,362 INFO L93 Difference]: Finished difference Result 27 states and 35 transitions. [2019-11-06 22:59:41,362 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-06 22:59:41,362 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2019-11-06 22:59:41,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:59:41,362 INFO L225 Difference]: With dead ends: 27 [2019-11-06 22:59:41,363 INFO L226 Difference]: Without dead ends: 0 [2019-11-06 22:59:41,363 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 31 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2019-11-06 22:59:41,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-06 22:59:41,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-06 22:59:41,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-06 22:59:41,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-06 22:59:41,365 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2019-11-06 22:59:41,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:59:41,365 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-06 22:59:41,365 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-06 22:59:41,365 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-06 22:59:41,365 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-06 22:59:41,570 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-06 22:59:41,576 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-06 22:59:41,599 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-11-06 22:59:41,599 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-11-06 22:59:41,600 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-11-06 22:59:41,600 INFO L443 ceAbstractionStarter]: For program point __bswap_32ENTRY(lines 64 68) no Hoare annotation was computed. [2019-11-06 22:59:41,600 INFO L443 ceAbstractionStarter]: For program point __bswap_32FINAL(lines 64 68) no Hoare annotation was computed. [2019-11-06 22:59:41,600 INFO L443 ceAbstractionStarter]: For program point __bswap_32EXIT(lines 64 68) no Hoare annotation was computed. [2019-11-06 22:59:41,600 INFO L443 ceAbstractionStarter]: For program point __bswap_64ENTRY(lines 69 73) no Hoare annotation was computed. [2019-11-06 22:59:41,600 INFO L443 ceAbstractionStarter]: For program point __bswap_64FINAL(lines 69 73) no Hoare annotation was computed. [2019-11-06 22:59:41,600 INFO L443 ceAbstractionStarter]: For program point __bswap_64EXIT(lines 69 73) no Hoare annotation was computed. [2019-11-06 22:59:41,600 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-06 22:59:41,601 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-11-06 22:59:41,601 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-11-06 22:59:41,601 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-06 22:59:41,601 INFO L443 ceAbstractionStarter]: For program point L576-2(lines 576 581) no Hoare annotation was computed. [2019-11-06 22:59:41,601 INFO L439 ceAbstractionStarter]: At program point L576-3(lines 576 581) the Hoare annotation is: false [2019-11-06 22:59:41,601 INFO L443 ceAbstractionStarter]: For program point L576-4(lines 561 583) no Hoare annotation was computed. [2019-11-06 22:59:41,601 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 561 583) no Hoare annotation was computed. [2019-11-06 22:59:41,601 INFO L443 ceAbstractionStarter]: For program point L568(line 568) no Hoare annotation was computed. [2019-11-06 22:59:41,602 INFO L439 ceAbstractionStarter]: At program point L568-1(lines 566 574) the Hoare annotation is: false [2019-11-06 22:59:41,602 INFO L443 ceAbstractionStarter]: For program point L577(line 577) no Hoare annotation was computed. [2019-11-06 22:59:41,602 INFO L443 ceAbstractionStarter]: For program point L577-2(lines 577 578) no Hoare annotation was computed. [2019-11-06 22:59:41,602 INFO L443 ceAbstractionStarter]: For program point L577-4(lines 577 578) no Hoare annotation was computed. [2019-11-06 22:59:41,602 INFO L443 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 578) no Hoare annotation was computed. [2019-11-06 22:59:41,602 INFO L443 ceAbstractionStarter]: For program point L578(line 578) no Hoare annotation was computed. [2019-11-06 22:59:41,602 INFO L443 ceAbstractionStarter]: For program point L566-1(lines 566 574) no Hoare annotation was computed. [2019-11-06 22:59:41,602 INFO L439 ceAbstractionStarter]: At program point L566-3(lines 566 574) the Hoare annotation is: false [2019-11-06 22:59:41,602 INFO L443 ceAbstractionStarter]: For program point L579(lines 579 580) no Hoare annotation was computed. [2019-11-06 22:59:41,603 INFO L443 ceAbstractionStarter]: For program point L575-1(lines 561 583) no Hoare annotation was computed. [2019-11-06 22:59:41,603 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 561 583) the Hoare annotation is: true [2019-11-06 22:59:41,611 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:59:41 BoogieIcfgContainer [2019-11-06 22:59:41,612 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-06 22:59:41,614 INFO L168 Benchmark]: Toolchain (without parser) took 3396.25 ms. Allocated memory was 139.5 MB in the beginning and 236.5 MB in the end (delta: 97.0 MB). Free memory was 102.7 MB in the beginning and 96.4 MB in the end (delta: 6.3 MB). Peak memory consumption was 103.3 MB. Max. memory is 7.1 GB. [2019-11-06 22:59:41,615 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 139.5 MB. Free memory was 122.7 MB in the beginning and 122.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-11-06 22:59:41,616 INFO L168 Benchmark]: CACSL2BoogieTranslator took 678.47 ms. Allocated memory was 139.5 MB in the beginning and 203.4 MB in the end (delta: 64.0 MB). Free memory was 102.5 MB in the beginning and 169.5 MB in the end (delta: -67.0 MB). Peak memory consumption was 23.2 MB. Max. memory is 7.1 GB. [2019-11-06 22:59:41,616 INFO L168 Benchmark]: Boogie Preprocessor took 80.58 ms. Allocated memory is still 203.4 MB. Free memory was 169.5 MB in the beginning and 166.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2019-11-06 22:59:41,617 INFO L168 Benchmark]: RCFGBuilder took 566.29 ms. Allocated memory is still 203.4 MB. Free memory was 166.8 MB in the beginning and 126.0 MB in the end (delta: 40.8 MB). Peak memory consumption was 40.8 MB. Max. memory is 7.1 GB. [2019-11-06 22:59:41,618 INFO L168 Benchmark]: TraceAbstraction took 2066.27 ms. Allocated memory was 203.4 MB in the beginning and 236.5 MB in the end (delta: 33.0 MB). Free memory was 125.3 MB in the beginning and 96.4 MB in the end (delta: 28.9 MB). Peak memory consumption was 61.9 MB. Max. memory is 7.1 GB. [2019-11-06 22:59:41,622 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 139.5 MB. Free memory was 122.7 MB in the beginning and 122.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 678.47 ms. Allocated memory was 139.5 MB in the beginning and 203.4 MB in the end (delta: 64.0 MB). Free memory was 102.5 MB in the beginning and 169.5 MB in the end (delta: -67.0 MB). Peak memory consumption was 23.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 80.58 ms. Allocated memory is still 203.4 MB. Free memory was 169.5 MB in the beginning and 166.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 566.29 ms. Allocated memory is still 203.4 MB. Free memory was 166.8 MB in the beginning and 126.0 MB in the end (delta: 40.8 MB). Peak memory consumption was 40.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2066.27 ms. Allocated memory was 203.4 MB in the beginning and 236.5 MB in the end (delta: 33.0 MB). Free memory was 125.3 MB in the beginning and 96.4 MB in the end (delta: 28.9 MB). Peak memory consumption was 61.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 578]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 566]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 576]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 566]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 29 locations, 1 error locations. Result: SAFE, OverallTime: 2.0s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 48 SDtfs, 14 SDslu, 65 SDs, 0 SdLazy, 55 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 52 GetRequests, 35 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27occurred in iteration=2, 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, 3 MinimizatonAttempts, 5 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 7 NumberOfFragments, 7 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 62 NumberOfCodeBlocks, 62 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 75 ConstructedInterpolants, 4 QuantifiedInterpolants, 9921 SizeOfPredicates, 14 NumberOfNonLiveVariables, 101 ConjunctsInSsa, 25 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 0/9 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: TIME[ms]: 112, ITERATIONS: 1, WAS_STRONG: 1, WEAKENING_RATIO: 0.8823529411764706, AVG_VARS_REMOVED_DURING_WEAKENING: 1.2941176470588236, AVG_WEAKENED_CONJUNCTS: 0.35294117647058826, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...