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/list-ext3-properties/sll_nondet_insert-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 01:03:25,882 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 01:03:25,884 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 01:03:25,897 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 01:03:25,897 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 01:03:25,898 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 01:03:25,900 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 01:03:25,902 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 01:03:25,903 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 01:03:25,904 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 01:03:25,905 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 01:03:25,906 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 01:03:25,907 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 01:03:25,908 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 01:03:25,909 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 01:03:25,910 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 01:03:25,911 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 01:03:25,912 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 01:03:25,914 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 01:03:25,916 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 01:03:25,918 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 01:03:25,921 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 01:03:25,923 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 01:03:25,926 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 01:03:25,929 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 01:03:25,929 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 01:03:25,930 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 01:03:25,933 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 01:03:25,935 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 01:03:25,936 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 01:03:25,938 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 01:03:25,939 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 01:03:25,940 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 01:03:25,941 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 01:03:25,942 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 01:03:25,945 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 01:03:25,946 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 01:03:25,946 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 01:03:25,947 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 01:03:25,949 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 01:03:25,949 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 01:03:25,952 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 [2019-10-15 01:03:25,980 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 01:03:25,981 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 01:03:25,983 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 01:03:25,983 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 01:03:25,983 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 01:03:25,984 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 01:03:25,984 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 01:03:25,984 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 01:03:25,984 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 01:03:25,985 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 01:03:25,986 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 01:03:25,986 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 01:03:25,986 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 01:03:25,987 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 01:03:25,987 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 01:03:25,987 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 01:03:25,988 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 01:03:25,988 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 01:03:25,988 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 01:03:25,988 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 01:03:25,989 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 01:03:25,989 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:03:25,989 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 01:03:25,990 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 01:03:25,990 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 01:03:25,990 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 01:03:25,990 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 01:03:25,990 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 01:03:25,991 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 [2019-10-15 01:03:26,332 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 01:03:26,355 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 01:03:26,359 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 01:03:26,361 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 01:03:26,361 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 01:03:26,362 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-ext3-properties/sll_nondet_insert-2.i [2019-10-15 01:03:26,439 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b3cf143e0/e884a17a9e024a8f9036008c92473e72/FLAGa361c5914 [2019-10-15 01:03:27,033 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 01:03:27,034 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/list-ext3-properties/sll_nondet_insert-2.i [2019-10-15 01:03:27,050 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b3cf143e0/e884a17a9e024a8f9036008c92473e72/FLAGa361c5914 [2019-10-15 01:03:27,265 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b3cf143e0/e884a17a9e024a8f9036008c92473e72 [2019-10-15 01:03:27,275 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 01:03:27,277 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 01:03:27,278 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 01:03:27,278 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 01:03:27,280 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 01:03:27,281 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:03:27" (1/1) ... [2019-10-15 01:03:27,284 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33a1ee07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:03:27, skipping insertion in model container [2019-10-15 01:03:27,284 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:03:27" (1/1) ... [2019-10-15 01:03:27,292 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 01:03:27,342 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 01:03:27,829 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:03:27,847 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 01:03:27,928 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:03:27,985 INFO L192 MainTranslator]: Completed translation [2019-10-15 01:03:27,985 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:03:27 WrapperNode [2019-10-15 01:03:27,985 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 01:03:27,986 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 01:03:27,986 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 01:03:27,987 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 01:03:28,002 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:03:27" (1/1) ... [2019-10-15 01:03:28,002 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:03:27" (1/1) ... [2019-10-15 01:03:28,027 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:03:27" (1/1) ... [2019-10-15 01:03:28,027 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:03:27" (1/1) ... [2019-10-15 01:03:28,052 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:03:27" (1/1) ... [2019-10-15 01:03:28,064 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:03:27" (1/1) ... [2019-10-15 01:03:28,067 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:03:27" (1/1) ... [2019-10-15 01:03:28,074 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 01:03:28,074 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 01:03:28,075 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 01:03:28,075 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 01:03:28,076 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:03:27" (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 [2019-10-15 01:03:28,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 01:03:28,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 01:03:28,124 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-10-15 01:03:28,124 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-10-15 01:03:28,124 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2019-10-15 01:03:28,125 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_create [2019-10-15 01:03:28,125 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_length [2019-10-15 01:03:28,125 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_destroy [2019-10-15 01:03:28,125 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_insert [2019-10-15 01:03:28,126 INFO L138 BoogieDeclarations]: Found implementation of procedure _get_nondet_int [2019-10-15 01:03:28,126 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 01:03:28,126 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 01:03:28,126 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 01:03:28,126 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-10-15 01:03:28,126 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-10-15 01:03:28,127 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-10-15 01:03:28,127 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-10-15 01:03:28,127 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-10-15 01:03:28,127 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-10-15 01:03:28,127 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-10-15 01:03:28,128 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-10-15 01:03:28,128 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-10-15 01:03:28,128 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-10-15 01:03:28,128 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-10-15 01:03:28,128 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-10-15 01:03:28,128 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-10-15 01:03:28,129 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-10-15 01:03:28,129 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-10-15 01:03:28,129 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-10-15 01:03:28,129 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-10-15 01:03:28,129 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-10-15 01:03:28,129 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-10-15 01:03:28,129 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-10-15 01:03:28,130 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-10-15 01:03:28,130 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-10-15 01:03:28,130 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-10-15 01:03:28,130 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-10-15 01:03:28,130 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-10-15 01:03:28,130 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-10-15 01:03:28,131 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-10-15 01:03:28,131 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-10-15 01:03:28,131 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-10-15 01:03:28,131 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-10-15 01:03:28,133 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-10-15 01:03:28,133 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-10-15 01:03:28,134 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-10-15 01:03:28,134 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-10-15 01:03:28,134 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-10-15 01:03:28,134 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-10-15 01:03:28,134 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-10-15 01:03:28,134 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-10-15 01:03:28,134 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-10-15 01:03:28,135 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-10-15 01:03:28,135 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-10-15 01:03:28,135 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-10-15 01:03:28,135 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-10-15 01:03:28,135 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-10-15 01:03:28,135 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-10-15 01:03:28,136 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-10-15 01:03:28,136 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-10-15 01:03:28,136 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-10-15 01:03:28,136 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-10-15 01:03:28,136 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-10-15 01:03:28,137 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-10-15 01:03:28,137 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-10-15 01:03:28,137 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 01:03:28,137 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-15 01:03:28,137 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-10-15 01:03:28,138 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 01:03:28,138 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-10-15 01:03:28,138 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-10-15 01:03:28,139 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-10-15 01:03:28,139 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-10-15 01:03:28,140 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-10-15 01:03:28,140 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-10-15 01:03:28,140 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-10-15 01:03:28,140 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-10-15 01:03:28,140 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-10-15 01:03:28,140 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-15 01:03:28,141 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-10-15 01:03:28,141 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-10-15 01:03:28,142 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-10-15 01:03:28,142 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-10-15 01:03:28,142 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-10-15 01:03:28,142 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-10-15 01:03:28,143 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-10-15 01:03:28,143 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-10-15 01:03:28,144 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-10-15 01:03:28,144 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-10-15 01:03:28,144 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-10-15 01:03:28,144 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-10-15 01:03:28,145 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-10-15 01:03:28,145 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-10-15 01:03:28,145 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-10-15 01:03:28,145 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-10-15 01:03:28,145 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-10-15 01:03:28,145 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-10-15 01:03:28,145 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-10-15 01:03:28,146 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-10-15 01:03:28,146 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-10-15 01:03:28,146 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-10-15 01:03:28,146 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-10-15 01:03:28,146 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-10-15 01:03:28,146 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-10-15 01:03:28,146 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-10-15 01:03:28,147 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-10-15 01:03:28,147 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-10-15 01:03:28,147 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-10-15 01:03:28,147 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-10-15 01:03:28,147 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-10-15 01:03:28,147 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-10-15 01:03:28,147 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-10-15 01:03:28,148 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-10-15 01:03:28,148 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-10-15 01:03:28,148 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-10-15 01:03:28,148 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-10-15 01:03:28,148 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-10-15 01:03:28,149 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-10-15 01:03:28,149 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2019-10-15 01:03:28,149 INFO L130 BoogieDeclarations]: Found specification of procedure sll_create [2019-10-15 01:03:28,149 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 01:03:28,149 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 01:03:28,150 INFO L130 BoogieDeclarations]: Found specification of procedure sll_length [2019-10-15 01:03:28,151 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 01:03:28,151 INFO L130 BoogieDeclarations]: Found specification of procedure sll_destroy [2019-10-15 01:03:28,151 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 01:03:28,151 INFO L130 BoogieDeclarations]: Found specification of procedure sll_insert [2019-10-15 01:03:28,151 INFO L130 BoogieDeclarations]: Found specification of procedure _get_nondet_int [2019-10-15 01:03:28,152 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 01:03:28,152 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 01:03:28,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-15 01:03:28,152 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 01:03:28,153 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 01:03:28,537 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2019-10-15 01:03:28,764 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 01:03:28,764 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-10-15 01:03:28,765 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:03:28 BoogieIcfgContainer [2019-10-15 01:03:28,766 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 01:03:28,767 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 01:03:28,767 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 01:03:28,770 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 01:03:28,771 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:03:27" (1/3) ... [2019-10-15 01:03:28,772 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7056afaa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:03:28, skipping insertion in model container [2019-10-15 01:03:28,772 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:03:27" (2/3) ... [2019-10-15 01:03:28,772 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7056afaa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:03:28, skipping insertion in model container [2019-10-15 01:03:28,772 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:03:28" (3/3) ... [2019-10-15 01:03:28,774 INFO L109 eAbstractionObserver]: Analyzing ICFG sll_nondet_insert-2.i [2019-10-15 01:03:28,784 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 01:03:28,792 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 01:03:28,804 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 01:03:28,829 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 01:03:28,829 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 01:03:28,829 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 01:03:28,830 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 01:03:28,830 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 01:03:28,830 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 01:03:28,830 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 01:03:28,830 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 01:03:28,852 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states. [2019-10-15 01:03:28,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2019-10-15 01:03:28,860 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:03:28,862 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:03:28,865 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:03:28,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:03:28,871 INFO L82 PathProgramCache]: Analyzing trace with hash -87837704, now seen corresponding path program 1 times [2019-10-15 01:03:28,881 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:03:28,882 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455432211] [2019-10-15 01:03:28,882 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:03:28,882 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:03:28,883 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:03:28,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:03:29,049 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-15 01:03:29,050 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455432211] [2019-10-15 01:03:29,051 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [171835808] [2019-10-15 01:03:29,051 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 [2019-10-15 01:03:29,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:03:29,279 INFO L256 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 1 conjunts are in the unsatisfiable core [2019-10-15 01:03:29,291 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:03:29,315 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-15 01:03:29,316 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:03:29,358 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-15 01:03:29,358 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-15 01:03:29,359 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2, 2] total 2 [2019-10-15 01:03:29,359 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511898399] [2019-10-15 01:03:29,368 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 01:03:29,370 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:03:29,385 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 01:03:29,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:03:29,388 INFO L87 Difference]: Start difference. First operand 65 states. Second operand 2 states. [2019-10-15 01:03:29,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:03:29,443 INFO L93 Difference]: Finished difference Result 124 states and 166 transitions. [2019-10-15 01:03:29,443 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 01:03:29,445 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 37 [2019-10-15 01:03:29,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:03:29,464 INFO L225 Difference]: With dead ends: 124 [2019-10-15 01:03:29,464 INFO L226 Difference]: Without dead ends: 51 [2019-10-15 01:03:29,470 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:03:29,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2019-10-15 01:03:29,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2019-10-15 01:03:29,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2019-10-15 01:03:29,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 59 transitions. [2019-10-15 01:03:29,536 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 59 transitions. Word has length 37 [2019-10-15 01:03:29,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:03:29,536 INFO L462 AbstractCegarLoop]: Abstraction has 51 states and 59 transitions. [2019-10-15 01:03:29,536 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 01:03:29,537 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 59 transitions. [2019-10-15 01:03:29,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2019-10-15 01:03:29,540 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:03:29,542 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:03:29,748 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:03:29,749 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:03:29,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:03:29,750 INFO L82 PathProgramCache]: Analyzing trace with hash 1536900415, now seen corresponding path program 1 times [2019-10-15 01:03:29,750 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:03:29,751 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993868262] [2019-10-15 01:03:29,751 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:03:29,751 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:03:29,751 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:03:29,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:03:30,042 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-15 01:03:30,043 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993868262] [2019-10-15 01:03:30,043 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [165098667] [2019-10-15 01:03:30,043 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:03:30,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:03:30,200 INFO L256 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 10 conjunts are in the unsatisfiable core [2019-10-15 01:03:30,204 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:03:30,247 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:03:30,248 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:03:30,483 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-15 01:03:30,483 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-15 01:03:30,484 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9, 9] total 15 [2019-10-15 01:03:30,484 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569280565] [2019-10-15 01:03:30,485 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-15 01:03:30,485 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:03:30,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-15 01:03:30,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2019-10-15 01:03:30,486 INFO L87 Difference]: Start difference. First operand 51 states and 59 transitions. Second operand 9 states. [2019-10-15 01:03:30,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:03:30,625 INFO L93 Difference]: Finished difference Result 91 states and 106 transitions. [2019-10-15 01:03:30,626 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-15 01:03:30,626 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 42 [2019-10-15 01:03:30,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:03:30,628 INFO L225 Difference]: With dead ends: 91 [2019-10-15 01:03:30,629 INFO L226 Difference]: Without dead ends: 53 [2019-10-15 01:03:30,630 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 76 SyntacticMatches, 3 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2019-10-15 01:03:30,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2019-10-15 01:03:30,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2019-10-15 01:03:30,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2019-10-15 01:03:30,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 61 transitions. [2019-10-15 01:03:30,641 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 61 transitions. Word has length 42 [2019-10-15 01:03:30,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:03:30,661 INFO L462 AbstractCegarLoop]: Abstraction has 53 states and 61 transitions. [2019-10-15 01:03:30,661 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-15 01:03:30,664 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 61 transitions. [2019-10-15 01:03:30,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-10-15 01:03:30,666 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:03:30,666 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:03:30,867 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:03:30,868 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:03:30,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:03:30,869 INFO L82 PathProgramCache]: Analyzing trace with hash 1663200358, now seen corresponding path program 1 times [2019-10-15 01:03:30,869 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:03:30,870 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233885377] [2019-10-15 01:03:30,870 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:03:30,870 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:03:30,871 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:03:30,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:03:31,079 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-10-15 01:03:31,080 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233885377] [2019-10-15 01:03:31,080 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:03:31,081 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-15 01:03:31,081 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205405286] [2019-10-15 01:03:31,082 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-15 01:03:31,082 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:03:31,088 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-15 01:03:31,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-15 01:03:31,091 INFO L87 Difference]: Start difference. First operand 53 states and 61 transitions. Second operand 10 states. [2019-10-15 01:03:31,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:03:31,286 INFO L93 Difference]: Finished difference Result 73 states and 85 transitions. [2019-10-15 01:03:31,288 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-15 01:03:31,289 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 46 [2019-10-15 01:03:31,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:03:31,293 INFO L225 Difference]: With dead ends: 73 [2019-10-15 01:03:31,293 INFO L226 Difference]: Without dead ends: 69 [2019-10-15 01:03:31,294 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2019-10-15 01:03:31,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2019-10-15 01:03:31,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 60. [2019-10-15 01:03:31,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2019-10-15 01:03:31,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 71 transitions. [2019-10-15 01:03:31,323 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 71 transitions. Word has length 46 [2019-10-15 01:03:31,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:03:31,324 INFO L462 AbstractCegarLoop]: Abstraction has 60 states and 71 transitions. [2019-10-15 01:03:31,324 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-15 01:03:31,325 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 71 transitions. [2019-10-15 01:03:31,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-10-15 01:03:31,327 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:03:31,327 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:03:31,327 INFO L410 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:03:31,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:03:31,328 INFO L82 PathProgramCache]: Analyzing trace with hash -1968577046, now seen corresponding path program 1 times [2019-10-15 01:03:31,328 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:03:31,328 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925060091] [2019-10-15 01:03:31,329 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:03:31,329 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:03:31,329 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:03:31,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:03:31,731 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-15 01:03:31,732 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925060091] [2019-10-15 01:03:31,732 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [730306276] [2019-10-15 01:03:31,732 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:03:31,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:03:31,855 INFO L256 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 12 conjunts are in the unsatisfiable core [2019-10-15 01:03:31,867 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:03:31,892 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-15 01:03:31,893 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:03:32,156 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-15 01:03:32,156 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [140330113] [2019-10-15 01:03:32,163 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 48 [2019-10-15 01:03:32,202 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-15 01:03:32,202 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-15 01:03:32,291 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-15 01:03:32,293 INFO L272 AbstractInterpreter]: Visited 14 different actions 14 times. Never merged. Never widened. Performed 38 root evaluator evaluations with a maximum evaluation depth of 3. Performed 38 inverse root evaluator evaluations with a maximum inverse evaluation depth of 2. Never found a fixpoint. Largest state had 26 variables. [2019-10-15 01:03:32,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:03:32,298 INFO L536 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-15 01:03:32,346 INFO L227 lantSequenceWeakener]: Weakened 12 states. On average, predicates are now at 89.35% of their original sizes. [2019-10-15 01:03:32,346 INFO L551 sIntCurrentIteration]: Unifying AI predicates [2019-10-15 01:03:32,377 INFO L553 sIntCurrentIteration]: We unified 46 AI predicates to 46 [2019-10-15 01:03:32,377 INFO L562 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-15 01:03:32,379 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-10-15 01:03:32,379 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [15, 10, 10] total 25 [2019-10-15 01:03:32,379 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027590171] [2019-10-15 01:03:32,380 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 01:03:32,381 INFO L137 tionRefinementEngine]: Using predicate unifier AbsIntPredicateUnifier provided by strategy TAIPAN [2019-10-15 01:03:32,381 INFO L124 tionRefinementEngine]: Using hoare triple checker CachingHoareTripleCheckerMap provided by strategy [2019-10-15 01:03:32,381 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 01:03:32,382 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-15 01:03:32,382 INFO L87 Difference]: Start difference. First operand 60 states and 71 transitions. Second operand 7 states. [2019-10-15 01:03:32,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:03:32,491 INFO L93 Difference]: Finished difference Result 127 states and 151 transitions. [2019-10-15 01:03:32,491 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-15 01:03:32,491 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 47 [2019-10-15 01:03:32,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:03:32,493 INFO L225 Difference]: With dead ends: 127 [2019-10-15 01:03:32,493 INFO L226 Difference]: Without dead ends: 70 [2019-10-15 01:03:32,494 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2019-10-15 01:03:32,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2019-10-15 01:03:32,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2019-10-15 01:03:32,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2019-10-15 01:03:32,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 83 transitions. [2019-10-15 01:03:32,503 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 83 transitions. Word has length 47 [2019-10-15 01:03:32,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:03:32,503 INFO L462 AbstractCegarLoop]: Abstraction has 70 states and 83 transitions. [2019-10-15 01:03:32,503 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 01:03:32,504 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 83 transitions. [2019-10-15 01:03:32,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2019-10-15 01:03:32,505 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:03:32,505 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:03:32,711 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:03:32,711 INFO L410 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:03:32,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:03:32,712 INFO L82 PathProgramCache]: Analyzing trace with hash 24505015, now seen corresponding path program 1 times [2019-10-15 01:03:32,712 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:03:32,713 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16889145] [2019-10-15 01:03:32,713 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:03:32,714 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:03:32,714 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:03:32,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:03:33,045 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 3 proven. 11 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-15 01:03:33,046 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16889145] [2019-10-15 01:03:33,046 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2113136625] [2019-10-15 01:03:33,046 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:03:33,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:03:33,160 INFO L256 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 13 conjunts are in the unsatisfiable core [2019-10-15 01:03:33,163 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:03:33,177 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-15 01:03:33,178 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:03:33,522 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 3 proven. 11 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-15 01:03:33,523 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [954069211] [2019-10-15 01:03:33,523 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 51 [2019-10-15 01:03:33,528 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-15 01:03:33,528 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-15 01:03:33,585 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-15 01:03:33,587 INFO L272 AbstractInterpreter]: Visited 15 different actions 63 times. Merged at 7 different actions 42 times. Widened at 1 different actions 2 times. Performed 162 root evaluator evaluations with a maximum evaluation depth of 3. Performed 162 inverse root evaluator evaluations with a maximum inverse evaluation depth of 2. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2019-10-15 01:03:33,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:03:33,587 INFO L536 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-15 01:03:33,609 INFO L227 lantSequenceWeakener]: Weakened 15 states. On average, predicates are now at 87.19% of their original sizes. [2019-10-15 01:03:33,610 INFO L551 sIntCurrentIteration]: Unifying AI predicates [2019-10-15 01:03:33,628 INFO L553 sIntCurrentIteration]: We unified 49 AI predicates to 49 [2019-10-15 01:03:33,629 INFO L562 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-15 01:03:33,629 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-10-15 01:03:33,629 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [16, 11, 11] total 29 [2019-10-15 01:03:33,629 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722937950] [2019-10-15 01:03:33,630 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 01:03:33,630 INFO L137 tionRefinementEngine]: Using predicate unifier AbsIntPredicateUnifier provided by strategy TAIPAN [2019-10-15 01:03:33,631 INFO L124 tionRefinementEngine]: Using hoare triple checker CachingHoareTripleCheckerMap provided by strategy [2019-10-15 01:03:33,631 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 01:03:33,632 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-15 01:03:33,632 INFO L87 Difference]: Start difference. First operand 70 states and 83 transitions. Second operand 7 states. [2019-10-15 01:03:33,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:03:33,687 INFO L93 Difference]: Finished difference Result 70 states and 83 transitions. [2019-10-15 01:03:33,687 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-15 01:03:33,687 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 50 [2019-10-15 01:03:33,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:03:33,688 INFO L225 Difference]: With dead ends: 70 [2019-10-15 01:03:33,688 INFO L226 Difference]: Without dead ends: 0 [2019-10-15 01:03:33,689 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2019-10-15 01:03:33,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-15 01:03:33,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-15 01:03:33,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-15 01:03:33,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-15 01:03:33,690 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 50 [2019-10-15 01:03:33,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:03:33,690 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-15 01:03:33,690 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 01:03:33,690 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-15 01:03:33,691 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-15 01:03:33,896 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:03:33,902 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-15 01:03:33,972 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-10-15 01:03:33,972 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-10-15 01:03:33,972 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-15 01:03:33,972 INFO L446 ceAbstractionStarter]: At program point L561(line 561) the Hoare annotation is: true [2019-10-15 01:03:33,973 INFO L446 ceAbstractionStarter]: At program point myexitENTRY(lines 560 562) the Hoare annotation is: true [2019-10-15 01:03:33,973 INFO L443 ceAbstractionStarter]: For program point myexitEXIT(lines 560 562) no Hoare annotation was computed. [2019-10-15 01:03:33,973 INFO L446 ceAbstractionStarter]: At program point L584-2(lines 584 588) the Hoare annotation is: true [2019-10-15 01:03:33,973 INFO L443 ceAbstractionStarter]: For program point sll_destroyEXIT(lines 583 589) no Hoare annotation was computed. [2019-10-15 01:03:33,973 INFO L443 ceAbstractionStarter]: For program point L584-3(lines 583 589) no Hoare annotation was computed. [2019-10-15 01:03:33,973 INFO L446 ceAbstractionStarter]: At program point sll_destroyENTRY(lines 583 589) the Hoare annotation is: true [2019-10-15 01:03:33,973 INFO L443 ceAbstractionStarter]: For program point L610-1(line 610) no Hoare annotation was computed. [2019-10-15 01:03:33,973 INFO L443 ceAbstractionStarter]: For program point L610-3(lines 610 612) no Hoare annotation was computed. [2019-10-15 01:03:33,974 INFO L443 ceAbstractionStarter]: For program point _get_nondet_intEXIT(lines 608 614) no Hoare annotation was computed. [2019-10-15 01:03:33,974 INFO L439 ceAbstractionStarter]: At program point L610-5(lines 610 612) the Hoare annotation is: (or (not (= |_get_nondet_int_#in~until| 5)) (not (= |_get_nondet_int_#in~from| 2)) (and (<= |_get_nondet_int_#in~from| _get_nondet_int_~len~1) (= _get_nondet_int_~until 5))) [2019-10-15 01:03:33,974 INFO L443 ceAbstractionStarter]: For program point L610-6(lines 610 612) no Hoare annotation was computed. [2019-10-15 01:03:33,974 INFO L446 ceAbstractionStarter]: At program point _get_nondet_intENTRY(lines 608 614) the Hoare annotation is: true [2019-10-15 01:03:33,974 INFO L443 ceAbstractionStarter]: For program point _get_nondet_intFINAL(lines 608 614) no Hoare annotation was computed. [2019-10-15 01:03:33,974 INFO L443 ceAbstractionStarter]: For program point __bswap_32ENTRY(lines 64 68) no Hoare annotation was computed. [2019-10-15 01:03:33,974 INFO L443 ceAbstractionStarter]: For program point __bswap_32FINAL(lines 64 68) no Hoare annotation was computed. [2019-10-15 01:03:33,975 INFO L443 ceAbstractionStarter]: For program point __bswap_32EXIT(lines 64 68) no Hoare annotation was computed. [2019-10-15 01:03:33,975 INFO L443 ceAbstractionStarter]: For program point sll_createEXIT(lines 563 574) no Hoare annotation was computed. [2019-10-15 01:03:33,975 INFO L446 ceAbstractionStarter]: At program point L568(line 568) the Hoare annotation is: true [2019-10-15 01:03:33,975 INFO L443 ceAbstractionStarter]: For program point L567(lines 567 569) no Hoare annotation was computed. [2019-10-15 01:03:33,975 INFO L443 ceAbstractionStarter]: For program point L567-1(lines 567 569) no Hoare annotation was computed. [2019-10-15 01:03:33,975 INFO L446 ceAbstractionStarter]: At program point sll_createENTRY(lines 563 574) the Hoare annotation is: true [2019-10-15 01:03:33,975 INFO L443 ceAbstractionStarter]: For program point L565-1(lines 565 572) no Hoare annotation was computed. [2019-10-15 01:03:33,975 INFO L446 ceAbstractionStarter]: At program point L565-3(lines 565 572) the Hoare annotation is: true [2019-10-15 01:03:33,976 INFO L443 ceAbstractionStarter]: For program point L565-4(lines 565 572) no Hoare annotation was computed. [2019-10-15 01:03:33,976 INFO L443 ceAbstractionStarter]: For program point sll_createFINAL(lines 563 574) no Hoare annotation was computed. [2019-10-15 01:03:33,976 INFO L443 ceAbstractionStarter]: For program point __bswap_64ENTRY(lines 69 73) no Hoare annotation was computed. [2019-10-15 01:03:33,976 INFO L443 ceAbstractionStarter]: For program point __bswap_64FINAL(lines 69 73) no Hoare annotation was computed. [2019-10-15 01:03:33,976 INFO L443 ceAbstractionStarter]: For program point __bswap_64EXIT(lines 69 73) no Hoare annotation was computed. [2019-10-15 01:03:33,976 INFO L443 ceAbstractionStarter]: For program point L597-1(lines 597 600) no Hoare annotation was computed. [2019-10-15 01:03:33,976 INFO L446 ceAbstractionStarter]: At program point L597-3(lines 597 600) the Hoare annotation is: true [2019-10-15 01:03:33,976 INFO L446 ceAbstractionStarter]: At program point L593(line 593) the Hoare annotation is: true [2019-10-15 01:03:33,977 INFO L443 ceAbstractionStarter]: For program point L597-4(lines 597 600) no Hoare annotation was computed. [2019-10-15 01:03:33,977 INFO L446 ceAbstractionStarter]: At program point sll_insertENTRY(lines 590 607) the Hoare annotation is: true [2019-10-15 01:03:33,977 INFO L443 ceAbstractionStarter]: For program point sll_insertEXIT(lines 590 607) no Hoare annotation was computed. [2019-10-15 01:03:33,977 INFO L443 ceAbstractionStarter]: For program point L602(lines 602 606) no Hoare annotation was computed. [2019-10-15 01:03:33,977 INFO L443 ceAbstractionStarter]: For program point L602-2(lines 590 607) no Hoare annotation was computed. [2019-10-15 01:03:33,977 INFO L443 ceAbstractionStarter]: For program point L592(lines 592 594) no Hoare annotation was computed. [2019-10-15 01:03:33,977 INFO L443 ceAbstractionStarter]: For program point L592-1(lines 592 594) no Hoare annotation was computed. [2019-10-15 01:03:33,977 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-15 01:03:33,978 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-10-15 01:03:33,978 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-15 01:03:33,978 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-15 01:03:33,978 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 615 632) no Hoare annotation was computed. [2019-10-15 01:03:33,978 INFO L446 ceAbstractionStarter]: At program point L628(line 628) the Hoare annotation is: true [2019-10-15 01:03:33,978 INFO L443 ceAbstractionStarter]: For program point L628-1(line 628) no Hoare annotation was computed. [2019-10-15 01:03:33,978 INFO L439 ceAbstractionStarter]: At program point L626(lines 615 632) the Hoare annotation is: false [2019-10-15 01:03:33,979 INFO L439 ceAbstractionStarter]: At program point L622(line 622) the Hoare annotation is: false [2019-10-15 01:03:33,979 INFO L443 ceAbstractionStarter]: For program point L622-1(line 622) no Hoare annotation was computed. [2019-10-15 01:03:33,979 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 615 632) no Hoare annotation was computed. [2019-10-15 01:03:33,979 INFO L439 ceAbstractionStarter]: At program point L618(line 618) the Hoare annotation is: false [2019-10-15 01:03:33,979 INFO L439 ceAbstractionStarter]: At program point L620-2(lines 620 624) the Hoare annotation is: false [2019-10-15 01:03:33,979 INFO L443 ceAbstractionStarter]: For program point L618-1(line 618) no Hoare annotation was computed. [2019-10-15 01:03:33,979 INFO L443 ceAbstractionStarter]: For program point L620-3(lines 620 624) no Hoare annotation was computed. [2019-10-15 01:03:33,979 INFO L443 ceAbstractionStarter]: For program point L616(line 616) no Hoare annotation was computed. [2019-10-15 01:03:33,980 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 615 632) the Hoare annotation is: true [2019-10-15 01:03:33,980 INFO L443 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 630) no Hoare annotation was computed. [2019-10-15 01:03:33,980 INFO L439 ceAbstractionStarter]: At program point L625(line 625) the Hoare annotation is: false [2019-10-15 01:03:33,980 INFO L443 ceAbstractionStarter]: For program point L625-1(line 625) no Hoare annotation was computed. [2019-10-15 01:03:33,980 INFO L443 ceAbstractionStarter]: For program point L625-2(lines 625 627) no Hoare annotation was computed. [2019-10-15 01:03:33,980 INFO L439 ceAbstractionStarter]: At program point L621(line 621) the Hoare annotation is: false [2019-10-15 01:03:33,980 INFO L443 ceAbstractionStarter]: For program point L621-1(line 621) no Hoare annotation was computed. [2019-10-15 01:03:33,981 INFO L439 ceAbstractionStarter]: At program point L617(line 617) the Hoare annotation is: false [2019-10-15 01:03:33,981 INFO L443 ceAbstractionStarter]: For program point L617-1(line 617) no Hoare annotation was computed. [2019-10-15 01:03:33,981 INFO L446 ceAbstractionStarter]: At program point L577-2(lines 577 580) the Hoare annotation is: true [2019-10-15 01:03:33,981 INFO L443 ceAbstractionStarter]: For program point L577-3(lines 577 580) no Hoare annotation was computed. [2019-10-15 01:03:33,981 INFO L443 ceAbstractionStarter]: For program point sll_lengthEXIT(lines 575 582) no Hoare annotation was computed. [2019-10-15 01:03:33,981 INFO L446 ceAbstractionStarter]: At program point sll_lengthENTRY(lines 575 582) the Hoare annotation is: true [2019-10-15 01:03:33,981 INFO L443 ceAbstractionStarter]: For program point sll_lengthFINAL(lines 575 582) no Hoare annotation was computed. [2019-10-15 01:03:33,992 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 01:03:33 BoogieIcfgContainer [2019-10-15 01:03:33,992 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-15 01:03:33,995 INFO L168 Benchmark]: Toolchain (without parser) took 6717.42 ms. Allocated memory was 143.1 MB in the beginning and 299.4 MB in the end (delta: 156.2 MB). Free memory was 98.6 MB in the beginning and 194.6 MB in the end (delta: -96.1 MB). Peak memory consumption was 60.2 MB. Max. memory is 7.1 GB. [2019-10-15 01:03:33,996 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 143.1 MB. Free memory was 118.2 MB in the beginning and 118.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-15 01:03:33,997 INFO L168 Benchmark]: CACSL2BoogieTranslator took 708.31 ms. Allocated memory was 143.1 MB in the beginning and 199.2 MB in the end (delta: 56.1 MB). Free memory was 98.4 MB in the beginning and 162.5 MB in the end (delta: -64.2 MB). Peak memory consumption was 19.6 MB. Max. memory is 7.1 GB. [2019-10-15 01:03:33,998 INFO L168 Benchmark]: Boogie Preprocessor took 87.85 ms. Allocated memory is still 199.2 MB. Free memory was 162.5 MB in the beginning and 159.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2019-10-15 01:03:33,999 INFO L168 Benchmark]: RCFGBuilder took 691.39 ms. Allocated memory is still 199.2 MB. Free memory was 159.8 MB in the beginning and 109.9 MB in the end (delta: 49.8 MB). Peak memory consumption was 49.8 MB. Max. memory is 7.1 GB. [2019-10-15 01:03:34,000 INFO L168 Benchmark]: TraceAbstraction took 5225.44 ms. Allocated memory was 199.2 MB in the beginning and 299.4 MB in the end (delta: 100.1 MB). Free memory was 109.3 MB in the beginning and 194.6 MB in the end (delta: -85.4 MB). Peak memory consumption was 14.8 MB. Max. memory is 7.1 GB. [2019-10-15 01:03:34,003 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 143.1 MB. Free memory was 118.2 MB in the beginning and 118.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 708.31 ms. Allocated memory was 143.1 MB in the beginning and 199.2 MB in the end (delta: 56.1 MB). Free memory was 98.4 MB in the beginning and 162.5 MB in the end (delta: -64.2 MB). Peak memory consumption was 19.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 87.85 ms. Allocated memory is still 199.2 MB. Free memory was 162.5 MB in the beginning and 159.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 691.39 ms. Allocated memory is still 199.2 MB. Free memory was 159.8 MB in the beginning and 109.9 MB in the end (delta: 49.8 MB). Peak memory consumption was 49.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 5225.44 ms. Allocated memory was 199.2 MB in the beginning and 299.4 MB in the end (delta: 100.1 MB). Free memory was 109.3 MB in the beginning and 194.6 MB in the end (delta: -85.4 MB). Peak memory consumption was 14.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 630]: 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: 577]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 620]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 565]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 584]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 610]: Loop Invariant Derived loop invariant: (!(\old(until) == 5) || !(\old(from) == 2)) || (\old(from) <= len && until == 5) - InvariantResult [Line: 597]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 615]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 561]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 11 procedures, 72 locations, 1 error locations. Result: SAFE, OverallTime: 5.1s, OverallIterations: 5, TraceHistogramMax: 3, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 244 SDtfs, 76 SDslu, 1006 SDs, 0 SdLazy, 188 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 282 GetRequests, 239 SyntacticMatches, 3 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=70occurred in iteration=4, 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, 5 MinimizatonAttempts, 9 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 26 LocationsWithAnnotation, 75 PreInvPairs, 77 NumberOfFragments, 41 HoareAnnotationTreeSize, 75 FomulaSimplifications, 20 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 26 FomulaSimplificationsInter, 9 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 398 NumberOfCodeBlocks, 398 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 561 ConstructedInterpolants, 0 QuantifiedInterpolants, 59063 SizeOfPredicates, 11 NumberOfNonLiveVariables, 681 ConjunctsInSsa, 36 ConjunctsInUnsatCore, 13 InterpolantComputations, 3 PerfectInterpolantSequences, 63/123 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: TIME[ms]: 200, ITERATIONS: 2, WAS_STRONG: 2, WEAKENING_RATIO: 1.9084195997239468, AVG_VARS_REMOVED_DURING_WEAKENING: 2.295031055900621, AVG_WEAKENED_CONJUNCTS: 3.208961845607808, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...