/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 --traceabstraction.assert.codeblocks.term.scoring.heuristic NUM_FUNCTIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 --traceabstraction.trace.refinement.strategy CAMEL_SMT_AM -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/list-simple/dll2n_update_all_reverse.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-79ed534 [2020-07-19 23:21:26,904 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-19 23:21:26,906 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-19 23:21:26,918 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-19 23:21:26,918 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-19 23:21:26,919 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-19 23:21:26,920 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-19 23:21:26,922 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-19 23:21:26,924 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-19 23:21:26,925 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-19 23:21:26,925 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-19 23:21:26,927 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-19 23:21:26,927 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-19 23:21:26,928 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-19 23:21:26,929 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-19 23:21:26,930 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-19 23:21:26,931 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-19 23:21:26,931 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-19 23:21:26,933 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-19 23:21:26,935 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-19 23:21:26,936 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-19 23:21:26,937 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-19 23:21:26,938 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-19 23:21:26,939 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-19 23:21:26,941 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-19 23:21:26,942 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-19 23:21:26,942 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-19 23:21:26,943 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-19 23:21:26,943 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-19 23:21:26,944 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-19 23:21:26,944 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-19 23:21:26,947 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-19 23:21:26,948 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-19 23:21:26,949 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-19 23:21:26,950 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-19 23:21:26,950 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-19 23:21:26,951 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-19 23:21:26,952 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-19 23:21:26,952 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-19 23:21:26,953 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-19 23:21:26,953 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-19 23:21:26,954 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 [2020-07-19 23:21:26,978 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-19 23:21:26,978 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-19 23:21:26,980 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-19 23:21:26,980 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-19 23:21:26,980 INFO L138 SettingsManager]: * Use SBE=true [2020-07-19 23:21:26,980 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-19 23:21:26,980 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-19 23:21:26,981 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-19 23:21:26,981 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-19 23:21:26,981 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-19 23:21:26,982 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-19 23:21:26,982 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-19 23:21:26,982 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-19 23:21:26,983 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-19 23:21:26,983 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-19 23:21:26,983 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-19 23:21:26,983 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-19 23:21:26,984 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-19 23:21:26,984 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-19 23:21:26,984 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-19 23:21:26,984 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-19 23:21:26,985 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-19 23:21:26,985 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-19 23:21:26,985 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-19 23:21:26,985 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-19 23:21:26,985 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-19 23:21:26,986 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-19 23:21:26,986 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-19 23:21:26,986 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-19 23:21:26,986 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> NUM_FUNCTIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 4 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> CAMEL_SMT_AM [2020-07-19 23:21:27,264 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-19 23:21:27,280 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-19 23:21:27,284 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-19 23:21:27,285 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-19 23:21:27,286 INFO L275 PluginConnector]: CDTParser initialized [2020-07-19 23:21:27,286 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-simple/dll2n_update_all_reverse.i [2020-07-19 23:21:27,355 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7bda487b3/66a02f065c0c48fd9897737935bf497c/FLAGaf301a8de [2020-07-19 23:21:27,862 INFO L306 CDTParser]: Found 1 translation units. [2020-07-19 23:21:27,862 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/list-simple/dll2n_update_all_reverse.i [2020-07-19 23:21:27,876 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7bda487b3/66a02f065c0c48fd9897737935bf497c/FLAGaf301a8de [2020-07-19 23:21:28,155 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7bda487b3/66a02f065c0c48fd9897737935bf497c [2020-07-19 23:21:28,163 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-19 23:21:28,166 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-19 23:21:28,167 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-19 23:21:28,167 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-19 23:21:28,170 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-19 23:21:28,171 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 11:21:28" (1/1) ... [2020-07-19 23:21:28,175 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2017ad0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:21:28, skipping insertion in model container [2020-07-19 23:21:28,175 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 11:21:28" (1/1) ... [2020-07-19 23:21:28,182 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-19 23:21:28,221 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-19 23:21:28,630 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-19 23:21:28,643 INFO L203 MainTranslator]: Completed pre-run [2020-07-19 23:21:28,696 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-19 23:21:28,754 INFO L208 MainTranslator]: Completed translation [2020-07-19 23:21:28,755 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:21:28 WrapperNode [2020-07-19 23:21:28,755 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-19 23:21:28,756 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-19 23:21:28,756 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-19 23:21:28,756 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-19 23:21:28,769 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:21:28" (1/1) ... [2020-07-19 23:21:28,769 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:21:28" (1/1) ... [2020-07-19 23:21:28,785 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:21:28" (1/1) ... [2020-07-19 23:21:28,786 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:21:28" (1/1) ... [2020-07-19 23:21:28,810 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:21:28" (1/1) ... [2020-07-19 23:21:28,823 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:21:28" (1/1) ... [2020-07-19 23:21:28,831 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:21:28" (1/1) ... [2020-07-19 23:21:28,842 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-19 23:21:28,843 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-19 23:21:28,843 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-19 23:21:28,843 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-19 23:21:28,846 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:21:28" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-19 23:21:28,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-19 23:21:28,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-19 23:21:28,902 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-07-19 23:21:28,902 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-07-19 23:21:28,902 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2020-07-19 23:21:28,903 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2020-07-19 23:21:28,903 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create [2020-07-19 23:21:28,903 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_destroy [2020-07-19 23:21:28,903 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_get_data_at [2020-07-19 23:21:28,903 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_update_at [2020-07-19 23:21:28,903 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-19 23:21:28,903 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-19 23:21:28,904 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-07-19 23:21:28,904 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-07-19 23:21:28,904 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-07-19 23:21:28,904 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-07-19 23:21:28,904 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-07-19 23:21:28,904 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-07-19 23:21:28,905 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-07-19 23:21:28,905 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-07-19 23:21:28,905 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-07-19 23:21:28,905 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-07-19 23:21:28,905 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-07-19 23:21:28,905 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-07-19 23:21:28,906 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-07-19 23:21:28,906 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-07-19 23:21:28,906 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-07-19 23:21:28,906 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-07-19 23:21:28,906 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-07-19 23:21:28,906 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-07-19 23:21:28,906 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-07-19 23:21:28,907 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-07-19 23:21:28,907 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-07-19 23:21:28,907 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-07-19 23:21:28,907 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-07-19 23:21:28,907 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-07-19 23:21:28,907 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-07-19 23:21:28,907 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-07-19 23:21:28,908 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-07-19 23:21:28,908 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-07-19 23:21:28,908 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-07-19 23:21:28,908 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-07-19 23:21:28,908 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-07-19 23:21:28,908 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-07-19 23:21:28,908 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-07-19 23:21:28,909 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-07-19 23:21:28,909 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-07-19 23:21:28,909 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-07-19 23:21:28,909 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-07-19 23:21:28,909 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-07-19 23:21:28,909 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-07-19 23:21:28,909 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-07-19 23:21:28,910 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-07-19 23:21:28,910 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-07-19 23:21:28,910 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-07-19 23:21:28,910 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-07-19 23:21:28,910 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-07-19 23:21:28,910 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-07-19 23:21:28,911 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-07-19 23:21:28,911 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-07-19 23:21:28,911 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-07-19 23:21:28,911 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-07-19 23:21:28,911 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-07-19 23:21:28,911 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-07-19 23:21:28,912 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-19 23:21:28,912 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-07-19 23:21:28,912 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-07-19 23:21:28,912 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-19 23:21:28,912 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-07-19 23:21:28,912 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-07-19 23:21:28,912 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-07-19 23:21:28,913 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-07-19 23:21:28,913 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-07-19 23:21:28,913 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-19 23:21:28,913 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-07-19 23:21:28,913 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-07-19 23:21:28,913 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-07-19 23:21:28,913 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-19 23:21:28,914 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-07-19 23:21:28,914 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-07-19 23:21:28,914 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-07-19 23:21:28,914 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-07-19 23:21:28,914 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-07-19 23:21:28,914 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-07-19 23:21:28,914 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-07-19 23:21:28,915 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-07-19 23:21:28,915 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-07-19 23:21:28,915 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-07-19 23:21:28,915 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-07-19 23:21:28,915 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-07-19 23:21:28,915 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-07-19 23:21:28,916 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-07-19 23:21:28,916 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-07-19 23:21:28,916 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-07-19 23:21:28,916 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-07-19 23:21:28,916 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-07-19 23:21:28,916 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-07-19 23:21:28,917 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-07-19 23:21:28,917 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-07-19 23:21:28,917 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-07-19 23:21:28,917 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-07-19 23:21:28,917 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-07-19 23:21:28,917 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-07-19 23:21:28,917 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-07-19 23:21:28,918 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-07-19 23:21:28,918 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-07-19 23:21:28,918 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-07-19 23:21:28,918 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-07-19 23:21:28,918 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-07-19 23:21:28,918 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-07-19 23:21:28,919 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-07-19 23:21:28,919 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-07-19 23:21:28,919 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-07-19 23:21:28,919 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-07-19 23:21:28,919 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-07-19 23:21:28,919 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-07-19 23:21:28,919 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-07-19 23:21:28,920 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2020-07-19 23:21:28,920 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2020-07-19 23:21:28,920 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-19 23:21:28,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-19 23:21:28,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-19 23:21:28,920 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create [2020-07-19 23:21:28,921 INFO L130 BoogieDeclarations]: Found specification of procedure dll_destroy [2020-07-19 23:21:28,921 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-19 23:21:28,921 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-19 23:21:28,921 INFO L130 BoogieDeclarations]: Found specification of procedure dll_get_data_at [2020-07-19 23:21:28,921 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-19 23:21:28,921 INFO L130 BoogieDeclarations]: Found specification of procedure dll_update_at [2020-07-19 23:21:28,922 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-19 23:21:28,922 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-19 23:21:28,922 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-19 23:21:29,356 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2020-07-19 23:21:29,569 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-19 23:21:29,569 INFO L295 CfgBuilder]: Removed 6 assume(true) statements. [2020-07-19 23:21:29,573 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 11:21:29 BoogieIcfgContainer [2020-07-19 23:21:29,573 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-19 23:21:29,574 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-19 23:21:29,575 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-19 23:21:29,577 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-19 23:21:29,578 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 11:21:28" (1/3) ... [2020-07-19 23:21:29,579 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2da626e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 11:21:29, skipping insertion in model container [2020-07-19 23:21:29,579 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:21:28" (2/3) ... [2020-07-19 23:21:29,579 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2da626e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 11:21:29, skipping insertion in model container [2020-07-19 23:21:29,579 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 11:21:29" (3/3) ... [2020-07-19 23:21:29,581 INFO L109 eAbstractionObserver]: Analyzing ICFG dll2n_update_all_reverse.i [2020-07-19 23:21:29,591 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-19 23:21:29,599 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-19 23:21:29,612 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-19 23:21:29,635 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-19 23:21:29,635 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-19 23:21:29,636 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-19 23:21:29,636 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-19 23:21:29,636 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-19 23:21:29,636 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-19 23:21:29,636 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-19 23:21:29,637 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-19 23:21:29,653 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states. [2020-07-19 23:21:29,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-07-19 23:21:29,658 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:21:29,659 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:21:29,660 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:21:29,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:21:29,664 INFO L82 PathProgramCache]: Analyzing trace with hash 1303429635, now seen corresponding path program 1 times [2020-07-19 23:21:29,671 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:21:29,671 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73238289] [2020-07-19 23:21:29,672 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9527229 [2020-07-19 23:21:29,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:21:29,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:21:29,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:21:29,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:21:29,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 23:21:29,894 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73238289] [2020-07-19 23:21:29,895 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 23:21:29,896 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-19 23:21:29,897 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579245342] [2020-07-19 23:21:29,901 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-19 23:21:29,902 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:21:29,923 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-19 23:21:29,924 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-19 23:21:29,926 INFO L87 Difference]: Start difference. First operand 51 states. Second operand 4 states. [2020-07-19 23:21:30,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:21:30,217 INFO L93 Difference]: Finished difference Result 123 states and 178 transitions. [2020-07-19 23:21:30,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-19 23:21:30,219 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2020-07-19 23:21:30,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:21:30,230 INFO L225 Difference]: With dead ends: 123 [2020-07-19 23:21:30,230 INFO L226 Difference]: Without dead ends: 64 [2020-07-19 23:21:30,234 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-19 23:21:30,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2020-07-19 23:21:30,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 38. [2020-07-19 23:21:30,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-07-19 23:21:30,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 43 transitions. [2020-07-19 23:21:30,282 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 43 transitions. Word has length 25 [2020-07-19 23:21:30,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:21:30,282 INFO L479 AbstractCegarLoop]: Abstraction has 38 states and 43 transitions. [2020-07-19 23:21:30,282 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-19 23:21:30,282 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 43 transitions. [2020-07-19 23:21:30,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-07-19 23:21:30,283 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:21:30,284 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:21:30,284 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-19 23:21:30,284 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:21:30,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:21:30,285 INFO L82 PathProgramCache]: Analyzing trace with hash 2048382207, now seen corresponding path program 1 times [2020-07-19 23:21:30,285 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:21:30,285 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31470068] [2020-07-19 23:21:30,286 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9527229 [2020-07-19 23:21:30,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:21:30,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:21:30,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:21:30,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:21:30,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 23:21:30,431 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31470068] [2020-07-19 23:21:30,432 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 23:21:30,432 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-19 23:21:30,432 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716936635] [2020-07-19 23:21:30,434 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-19 23:21:30,434 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:21:30,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-19 23:21:30,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-07-19 23:21:30,435 INFO L87 Difference]: Start difference. First operand 38 states and 43 transitions. Second operand 7 states. [2020-07-19 23:21:30,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:21:30,650 INFO L93 Difference]: Finished difference Result 68 states and 78 transitions. [2020-07-19 23:21:30,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-19 23:21:30,651 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 25 [2020-07-19 23:21:30,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:21:30,652 INFO L225 Difference]: With dead ends: 68 [2020-07-19 23:21:30,652 INFO L226 Difference]: Without dead ends: 43 [2020-07-19 23:21:30,654 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-07-19 23:21:30,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2020-07-19 23:21:30,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 39. [2020-07-19 23:21:30,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-07-19 23:21:30,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 44 transitions. [2020-07-19 23:21:30,663 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 44 transitions. Word has length 25 [2020-07-19 23:21:30,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:21:30,663 INFO L479 AbstractCegarLoop]: Abstraction has 39 states and 44 transitions. [2020-07-19 23:21:30,663 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-19 23:21:30,663 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 44 transitions. [2020-07-19 23:21:30,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-07-19 23:21:30,665 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:21:30,665 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:21:30,665 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-19 23:21:30,665 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:21:30,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:21:30,666 INFO L82 PathProgramCache]: Analyzing trace with hash -1036290808, now seen corresponding path program 1 times [2020-07-19 23:21:30,666 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:21:30,666 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358340734] [2020-07-19 23:21:30,666 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9527229 [2020-07-19 23:21:30,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:21:30,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:21:30,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:21:30,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:21:30,779 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 23:21:30,779 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358340734] [2020-07-19 23:21:30,780 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 23:21:30,780 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-19 23:21:30,780 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068639247] [2020-07-19 23:21:30,780 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-19 23:21:30,781 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:21:30,781 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-19 23:21:30,781 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-19 23:21:30,782 INFO L87 Difference]: Start difference. First operand 39 states and 44 transitions. Second operand 6 states. [2020-07-19 23:21:30,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:21:30,974 INFO L93 Difference]: Finished difference Result 73 states and 84 transitions. [2020-07-19 23:21:30,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-19 23:21:30,974 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 30 [2020-07-19 23:21:30,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:21:30,975 INFO L225 Difference]: With dead ends: 73 [2020-07-19 23:21:30,976 INFO L226 Difference]: Without dead ends: 43 [2020-07-19 23:21:30,976 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-07-19 23:21:30,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2020-07-19 23:21:30,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 42. [2020-07-19 23:21:30,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-07-19 23:21:30,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 47 transitions. [2020-07-19 23:21:30,984 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 47 transitions. Word has length 30 [2020-07-19 23:21:30,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:21:30,985 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 47 transitions. [2020-07-19 23:21:30,985 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-19 23:21:30,985 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 47 transitions. [2020-07-19 23:21:30,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-07-19 23:21:30,987 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:21:30,987 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:21:30,987 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-19 23:21:30,988 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:21:30,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:21:30,988 INFO L82 PathProgramCache]: Analyzing trace with hash 1569732746, now seen corresponding path program 1 times [2020-07-19 23:21:30,989 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:21:30,989 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590209739] [2020-07-19 23:21:30,989 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9527229 [2020-07-19 23:21:31,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:21:31,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:21:31,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:21:31,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:21:31,209 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 23:21:31,210 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590209739] [2020-07-19 23:21:31,210 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1754453168] [2020-07-19 23:21:31,210 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6efe5529 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 [2020-07-19 23:21:31,342 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6efe5529 issued 3 check-sat command(s) [2020-07-19 23:21:31,343 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:21:31,345 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-19 23:21:31,351 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:21:31,409 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 23:21:31,409 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 23:21:31,410 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6] total 9 [2020-07-19 23:21:31,410 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6809865] [2020-07-19 23:21:31,410 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-19 23:21:31,410 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:21:31,411 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-19 23:21:31,411 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-07-19 23:21:31,411 INFO L87 Difference]: Start difference. First operand 42 states and 47 transitions. Second operand 9 states. [2020-07-19 23:21:31,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:21:31,651 INFO L93 Difference]: Finished difference Result 73 states and 83 transitions. [2020-07-19 23:21:31,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-19 23:21:31,651 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 30 [2020-07-19 23:21:31,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:21:31,652 INFO L225 Difference]: With dead ends: 73 [2020-07-19 23:21:31,652 INFO L226 Difference]: Without dead ends: 48 [2020-07-19 23:21:31,654 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2020-07-19 23:21:31,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-07-19 23:21:31,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 44. [2020-07-19 23:21:31,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2020-07-19 23:21:31,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 49 transitions. [2020-07-19 23:21:31,669 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 49 transitions. Word has length 30 [2020-07-19 23:21:31,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:21:31,671 INFO L479 AbstractCegarLoop]: Abstraction has 44 states and 49 transitions. [2020-07-19 23:21:31,671 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-19 23:21:31,671 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 49 transitions. [2020-07-19 23:21:31,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-07-19 23:21:31,672 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:21:31,673 INFO L422 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] [2020-07-19 23:21:31,888 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:21:31,889 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:21:31,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:21:31,889 INFO L82 PathProgramCache]: Analyzing trace with hash 649760861, now seen corresponding path program 1 times [2020-07-19 23:21:31,890 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:21:31,890 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201905017] [2020-07-19 23:21:31,891 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9527229 [2020-07-19 23:21:31,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:21:31,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:21:31,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:21:31,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:21:31,975 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-07-19 23:21:31,975 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201905017] [2020-07-19 23:21:31,975 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 23:21:31,976 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-19 23:21:31,976 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807850250] [2020-07-19 23:21:31,976 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-19 23:21:31,976 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:21:31,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-19 23:21:31,977 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-19 23:21:31,977 INFO L87 Difference]: Start difference. First operand 44 states and 49 transitions. Second operand 6 states. [2020-07-19 23:21:32,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:21:32,099 INFO L93 Difference]: Finished difference Result 49 states and 56 transitions. [2020-07-19 23:21:32,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-19 23:21:32,100 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 35 [2020-07-19 23:21:32,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:21:32,100 INFO L225 Difference]: With dead ends: 49 [2020-07-19 23:21:32,100 INFO L226 Difference]: Without dead ends: 0 [2020-07-19 23:21:32,101 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-07-19 23:21:32,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-19 23:21:32,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-19 23:21:32,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-19 23:21:32,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-19 23:21:32,102 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 35 [2020-07-19 23:21:32,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:21:32,102 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-19 23:21:32,102 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-19 23:21:32,103 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-19 23:21:32,103 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-19 23:21:32,103 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-19 23:21:32,105 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-19 23:21:32,315 INFO L264 CegarLoopResult]: At program point L607-2(lines 607 610) the Hoare annotation is: (and (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|)) [2020-07-19 23:21:32,315 INFO L268 CegarLoopResult]: For program point L607-3(lines 607 610) no Hoare annotation was computed. [2020-07-19 23:21:32,315 INFO L264 CegarLoopResult]: At program point dll_update_atENTRY(lines 606 612) the Hoare annotation is: (and (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|)) [2020-07-19 23:21:32,315 INFO L268 CegarLoopResult]: For program point dll_update_atEXIT(lines 606 612) no Hoare annotation was computed. [2020-07-19 23:21:32,316 INFO L268 CegarLoopResult]: For program point dll_update_atFINAL(lines 606 612) no Hoare annotation was computed. [2020-07-19 23:21:32,316 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-19 23:21:32,316 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#valid| |old(#valid)|) (= |old(#NULL.base)| |#NULL.base|) (= |#NULL.offset| |old(#NULL.offset)|)) [2020-07-19 23:21:32,316 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-19 23:21:32,317 INFO L271 CegarLoopResult]: At program point myexitENTRY(lines 561 563) the Hoare annotation is: true [2020-07-19 23:21:32,317 INFO L268 CegarLoopResult]: For program point myexitEXIT(lines 561 563) no Hoare annotation was computed. [2020-07-19 23:21:32,317 INFO L271 CegarLoopResult]: At program point L562(line 562) the Hoare annotation is: true [2020-07-19 23:21:32,317 INFO L268 CegarLoopResult]: For program point L578-1(lines 578 580) no Hoare annotation was computed. [2020-07-19 23:21:32,317 INFO L264 CegarLoopResult]: At program point dll_createENTRY(lines 574 591) the Hoare annotation is: (and (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#length)| |#length|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|)) [2020-07-19 23:21:32,317 INFO L271 CegarLoopResult]: At program point L576-2(lines 576 589) the Hoare annotation is: true [2020-07-19 23:21:32,318 INFO L268 CegarLoopResult]: For program point L576-3(lines 576 589) no Hoare annotation was computed. [2020-07-19 23:21:32,318 INFO L268 CegarLoopResult]: For program point dll_createFINAL(lines 574 591) no Hoare annotation was computed. [2020-07-19 23:21:32,318 INFO L271 CegarLoopResult]: At program point L579(line 579) the Hoare annotation is: true [2020-07-19 23:21:32,318 INFO L268 CegarLoopResult]: For program point dll_createEXIT(lines 574 591) no Hoare annotation was computed. [2020-07-19 23:21:32,318 INFO L268 CegarLoopResult]: For program point L584(lines 584 586) no Hoare annotation was computed. [2020-07-19 23:21:32,318 INFO L268 CegarLoopResult]: For program point L584-2(lines 584 586) no Hoare annotation was computed. [2020-07-19 23:21:32,318 INFO L268 CegarLoopResult]: For program point L578(lines 578 580) no Hoare annotation was computed. [2020-07-19 23:21:32,319 INFO L268 CegarLoopResult]: For program point __bswap_32ENTRY(lines 63 67) no Hoare annotation was computed. [2020-07-19 23:21:32,319 INFO L268 CegarLoopResult]: For program point __bswap_32FINAL(lines 63 67) no Hoare annotation was computed. [2020-07-19 23:21:32,319 INFO L268 CegarLoopResult]: For program point __bswap_32EXIT(lines 63 67) no Hoare annotation was computed. [2020-07-19 23:21:32,319 INFO L268 CegarLoopResult]: For program point __bswap_64ENTRY(lines 68 72) no Hoare annotation was computed. [2020-07-19 23:21:32,319 INFO L268 CegarLoopResult]: For program point __bswap_64FINAL(lines 68 72) no Hoare annotation was computed. [2020-07-19 23:21:32,319 INFO L268 CegarLoopResult]: For program point __bswap_64EXIT(lines 68 72) no Hoare annotation was computed. [2020-07-19 23:21:32,319 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-19 23:21:32,319 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-07-19 23:21:32,320 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-19 23:21:32,320 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-19 23:21:32,320 INFO L271 CegarLoopResult]: At program point L600-2(lines 600 603) the Hoare annotation is: true [2020-07-19 23:21:32,320 INFO L268 CegarLoopResult]: For program point L600-3(lines 600 603) no Hoare annotation was computed. [2020-07-19 23:21:32,320 INFO L268 CegarLoopResult]: For program point dll_get_data_atFINAL(lines 599 605) no Hoare annotation was computed. [2020-07-19 23:21:32,320 INFO L271 CegarLoopResult]: At program point dll_get_data_atENTRY(lines 599 605) the Hoare annotation is: true [2020-07-19 23:21:32,320 INFO L268 CegarLoopResult]: For program point dll_get_data_atEXIT(lines 599 605) no Hoare annotation was computed. [2020-07-19 23:21:32,321 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 613 632) no Hoare annotation was computed. [2020-07-19 23:21:32,321 INFO L268 CegarLoopResult]: For program point L628(line 628) no Hoare annotation was computed. [2020-07-19 23:21:32,321 INFO L264 CegarLoopResult]: At program point L624(line 624) the Hoare annotation is: false [2020-07-19 23:21:32,321 INFO L268 CegarLoopResult]: For program point L624-1(line 624) no Hoare annotation was computed. [2020-07-19 23:21:32,321 INFO L268 CegarLoopResult]: For program point L624-2(lines 624 626) no Hoare annotation was computed. [2020-07-19 23:21:32,321 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 613 632) no Hoare annotation was computed. [2020-07-19 23:21:32,321 INFO L264 CegarLoopResult]: At program point L620(line 620) the Hoare annotation is: (<= 2 main_~len~0) [2020-07-19 23:21:32,321 INFO L268 CegarLoopResult]: For program point L622-2(lines 622 627) no Hoare annotation was computed. [2020-07-19 23:21:32,322 INFO L268 CegarLoopResult]: For program point L620-1(lines 618 621) no Hoare annotation was computed. [2020-07-19 23:21:32,322 INFO L264 CegarLoopResult]: At program point L622-3(lines 622 627) the Hoare annotation is: (and (<= 2 main_~len~0) (<= 1 main_~i~0)) [2020-07-19 23:21:32,322 INFO L271 CegarLoopResult]: At program point L622-4(lines 622 627) the Hoare annotation is: true [2020-07-19 23:21:32,322 INFO L264 CegarLoopResult]: At program point L616(line 616) the Hoare annotation is: (and (= |#valid| |old(#valid)|) (<= 2 main_~len~0) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#length)| |#length|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|)) [2020-07-19 23:21:32,322 INFO L264 CegarLoopResult]: At program point L618-2(lines 618 621) the Hoare annotation is: (<= 2 main_~len~0) [2020-07-19 23:21:32,322 INFO L268 CegarLoopResult]: For program point L616-1(line 616) no Hoare annotation was computed. [2020-07-19 23:21:32,323 INFO L268 CegarLoopResult]: For program point L618-3(lines 618 621) no Hoare annotation was computed. [2020-07-19 23:21:32,323 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 630) no Hoare annotation was computed. [2020-07-19 23:21:32,323 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 613 632) the Hoare annotation is: (and (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#length)| |#length|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|)) [2020-07-19 23:21:32,323 INFO L264 CegarLoopResult]: At program point L625(lines 613 632) the Hoare annotation is: false [2020-07-19 23:21:32,323 INFO L268 CegarLoopResult]: For program point dll_destroyEXIT(lines 592 598) no Hoare annotation was computed. [2020-07-19 23:21:32,323 INFO L264 CegarLoopResult]: At program point dll_destroyENTRY(lines 592 598) the Hoare annotation is: (= |#valid| |old(#valid)|) [2020-07-19 23:21:32,323 INFO L271 CegarLoopResult]: At program point L593-2(lines 593 597) the Hoare annotation is: true [2020-07-19 23:21:32,324 INFO L268 CegarLoopResult]: For program point L593-3(lines 592 598) no Hoare annotation was computed. [2020-07-19 23:21:32,324 INFO L268 CegarLoopResult]: For program point node_createENTRY(lines 564 573) no Hoare annotation was computed. [2020-07-19 23:21:32,324 INFO L268 CegarLoopResult]: For program point node_createFINAL(lines 564 573) no Hoare annotation was computed. [2020-07-19 23:21:32,324 INFO L268 CegarLoopResult]: For program point L567(line 567) no Hoare annotation was computed. [2020-07-19 23:21:32,324 INFO L268 CegarLoopResult]: For program point L566(lines 566 568) no Hoare annotation was computed. [2020-07-19 23:21:32,324 INFO L268 CegarLoopResult]: For program point node_createEXIT(lines 564 573) no Hoare annotation was computed. [2020-07-19 23:21:32,324 INFO L268 CegarLoopResult]: For program point L566-1(lines 566 568) no Hoare annotation was computed. [2020-07-19 23:21:32,337 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-07-19 23:21:32,340 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-07-19 23:21:32,340 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-07-19 23:21:32,340 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-07-19 23:21:32,340 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-19 23:21:32,341 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-19 23:21:32,341 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-07-19 23:21:32,341 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-07-19 23:21:32,341 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-07-19 23:21:32,341 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-07-19 23:21:32,343 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-07-19 23:21:32,344 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-07-19 23:21:32,344 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-07-19 23:21:32,344 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-07-19 23:21:32,344 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-19 23:21:32,344 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-19 23:21:32,345 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-07-19 23:21:32,345 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-07-19 23:21:32,345 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-07-19 23:21:32,345 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-07-19 23:21:32,350 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.07 11:21:32 BoogieIcfgContainer [2020-07-19 23:21:32,350 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-19 23:21:32,352 INFO L168 Benchmark]: Toolchain (without parser) took 4186.68 ms. Allocated memory was 138.4 MB in the beginning and 246.9 MB in the end (delta: 108.5 MB). Free memory was 102.0 MB in the beginning and 193.7 MB in the end (delta: -91.7 MB). Peak memory consumption was 120.4 MB. Max. memory is 7.1 GB. [2020-07-19 23:21:32,353 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 138.4 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-19 23:21:32,354 INFO L168 Benchmark]: CACSL2BoogieTranslator took 588.65 ms. Allocated memory was 138.4 MB in the beginning and 203.4 MB in the end (delta: 65.0 MB). Free memory was 101.7 MB in the beginning and 169.2 MB in the end (delta: -67.5 MB). Peak memory consumption was 27.1 MB. Max. memory is 7.1 GB. [2020-07-19 23:21:32,355 INFO L168 Benchmark]: Boogie Preprocessor took 86.80 ms. Allocated memory is still 203.4 MB. Free memory was 169.2 MB in the beginning and 166.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2020-07-19 23:21:32,355 INFO L168 Benchmark]: RCFGBuilder took 730.73 ms. Allocated memory is still 203.4 MB. Free memory was 166.6 MB in the beginning and 117.0 MB in the end (delta: 49.5 MB). Peak memory consumption was 49.5 MB. Max. memory is 7.1 GB. [2020-07-19 23:21:32,356 INFO L168 Benchmark]: TraceAbstraction took 2775.53 ms. Allocated memory was 203.4 MB in the beginning and 246.9 MB in the end (delta: 43.5 MB). Free memory was 117.0 MB in the beginning and 193.7 MB in the end (delta: -76.6 MB). Peak memory consumption was 70.5 MB. Max. memory is 7.1 GB. [2020-07-19 23:21:32,360 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 138.4 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 588.65 ms. Allocated memory was 138.4 MB in the beginning and 203.4 MB in the end (delta: 65.0 MB). Free memory was 101.7 MB in the beginning and 169.2 MB in the end (delta: -67.5 MB). Peak memory consumption was 27.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 86.80 ms. Allocated memory is still 203.4 MB. Free memory was 169.2 MB in the beginning and 166.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 730.73 ms. Allocated memory is still 203.4 MB. Free memory was 166.6 MB in the beginning and 117.0 MB in the end (delta: 49.5 MB). Peak memory consumption was 49.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2775.53 ms. Allocated memory was 203.4 MB in the beginning and 246.9 MB in the end (delta: 43.5 MB). Free memory was 117.0 MB in the beginning and 193.7 MB in the end (delta: -76.6 MB). Peak memory consumption was 70.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ * 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: 562]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 593]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 618]: Loop Invariant Derived loop invariant: 2 <= len - InvariantResult [Line: 607]: Loop Invariant [2020-07-19 23:21:32,369 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-07-19 23:21:32,369 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-07-19 23:21:32,369 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-07-19 23:21:32,369 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-07-19 23:21:32,369 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-19 23:21:32,369 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-19 23:21:32,370 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-07-19 23:21:32,370 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-07-19 23:21:32,370 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-07-19 23:21:32,370 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-07-19 23:21:32,370 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-07-19 23:21:32,371 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-07-19 23:21:32,371 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-07-19 23:21:32,371 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-07-19 23:21:32,371 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-19 23:21:32,371 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-19 23:21:32,371 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-07-19 23:21:32,372 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-07-19 23:21:32,372 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-07-19 23:21:32,372 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ Derived loop invariant: (unknown-#memory_int-unknown == \old(unknown-#memory_int-unknown) && #memory_$Pointer$ == \old(#memory_$Pointer$)) && #memory_$Pointer$ == \old(#memory_$Pointer$) - InvariantResult [Line: 600]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 613]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 576]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 622]: Loop Invariant Derived loop invariant: 2 <= len && 1 <= i - StatisticsResult: Ultimate Automizer benchmark data CFG has 11 procedures, 64 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.4s, OverallIterations: 5, TraceHistogramMax: 2, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 166 SDtfs, 215 SDslu, 280 SDs, 0 SdLazy, 466 SolverSat, 75 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 99 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=51occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 35 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 22 LocationsWithAnnotation, 46 PreInvPairs, 60 NumberOfFragments, 109 HoareAnnotationTreeSize, 46 FomulaSimplifications, 16 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 22 FomulaSimplificationsInter, 115 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 175 NumberOfCodeBlocks, 169 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 169 ConstructedInterpolants, 0 QuantifiedInterpolants, 10665 SizeOfPredicates, 2 NumberOfNonLiveVariables, 117 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 6 InterpolantComputations, 4 PerfectInterpolantSequences, 8/10 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...