./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../sv-benchmarks/c/forester-heap/dll-optional-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 30f4e4ab Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/forester-heap/dll-optional-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8409443a6b8db5c0500e3e8aa54c33463c524ec9 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-memcleanup) --- Real Ultimate output --- This is Ultimate 0.1.24-30f4e4a [2019-11-28 02:47:31,870 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 02:47:31,872 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 02:47:31,891 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 02:47:31,891 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 02:47:31,893 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 02:47:31,895 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 02:47:31,904 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 02:47:31,909 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 02:47:31,913 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 02:47:31,915 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 02:47:31,916 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 02:47:31,917 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 02:47:31,919 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 02:47:31,920 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 02:47:31,922 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 02:47:31,923 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 02:47:31,924 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 02:47:31,927 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 02:47:31,931 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 02:47:31,935 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 02:47:31,940 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 02:47:31,941 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 02:47:31,943 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 02:47:31,946 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 02:47:31,946 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 02:47:31,946 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 02:47:31,948 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 02:47:31,948 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 02:47:31,949 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 02:47:31,949 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 02:47:31,950 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 02:47:31,951 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 02:47:31,952 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 02:47:31,953 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 02:47:31,953 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 02:47:31,954 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 02:47:31,955 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 02:47:31,955 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 02:47:31,956 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 02:47:31,957 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 02:47:31,958 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2019-11-28 02:47:31,988 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 02:47:31,989 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 02:47:31,992 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 02:47:31,993 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 02:47:31,993 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 02:47:31,993 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 02:47:31,993 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 02:47:31,993 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 02:47:31,994 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 02:47:31,994 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 02:47:31,994 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 02:47:31,994 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-28 02:47:31,994 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-28 02:47:31,995 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 02:47:31,995 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-28 02:47:31,995 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 02:47:31,995 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 02:47:31,996 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 02:47:31,998 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 02:47:31,999 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 02:47:31,999 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 02:47:32,000 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 02:47:32,001 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 02:47:32,001 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 02:47:32,001 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 02:47:32,002 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 02:47:32,002 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8409443a6b8db5c0500e3e8aa54c33463c524ec9 [2019-11-28 02:47:32,316 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 02:47:32,335 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 02:47:32,340 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 02:47:32,342 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 02:47:32,343 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 02:47:32,343 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/forester-heap/dll-optional-2.i [2019-11-28 02:47:32,412 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f4569a346/19168118ff15407b8f8a32789c2b020f/FLAGb676c8ca8 [2019-11-28 02:47:32,965 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 02:47:32,967 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/dll-optional-2.i [2019-11-28 02:47:32,989 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f4569a346/19168118ff15407b8f8a32789c2b020f/FLAGb676c8ca8 [2019-11-28 02:47:33,248 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f4569a346/19168118ff15407b8f8a32789c2b020f [2019-11-28 02:47:33,251 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 02:47:33,253 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-28 02:47:33,254 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 02:47:33,254 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 02:47:33,257 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 02:47:33,258 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:47:33" (1/1) ... [2019-11-28 02:47:33,261 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50d92780 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:47:33, skipping insertion in model container [2019-11-28 02:47:33,261 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:47:33" (1/1) ... [2019-11-28 02:47:33,268 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 02:47:33,305 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 02:47:33,700 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 02:47:33,710 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 02:47:33,762 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 02:47:33,819 INFO L208 MainTranslator]: Completed translation [2019-11-28 02:47:33,820 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:47:33 WrapperNode [2019-11-28 02:47:33,820 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 02:47:33,821 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 02:47:33,821 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 02:47:33,822 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 02:47:33,835 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:47:33" (1/1) ... [2019-11-28 02:47:33,836 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:47:33" (1/1) ... [2019-11-28 02:47:33,851 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:47:33" (1/1) ... [2019-11-28 02:47:33,852 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:47:33" (1/1) ... [2019-11-28 02:47:33,872 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:47:33" (1/1) ... [2019-11-28 02:47:33,878 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:47:33" (1/1) ... [2019-11-28 02:47:33,882 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:47:33" (1/1) ... [2019-11-28 02:47:33,888 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 02:47:33,889 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 02:47:33,889 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 02:47:33,890 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 02:47:33,892 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:47:33" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 02:47:33,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-28 02:47:33,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 02:47:33,949 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-28 02:47:33,949 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-28 02:47:33,949 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-28 02:47:33,950 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-28 02:47:33,950 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-28 02:47:33,951 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-28 02:47:33,952 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-28 02:47:33,952 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-28 02:47:33,952 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-28 02:47:33,952 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-28 02:47:33,953 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-28 02:47:33,953 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-28 02:47:33,954 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-28 02:47:33,954 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-28 02:47:33,954 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-28 02:47:33,954 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-28 02:47:33,956 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-28 02:47:33,956 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-28 02:47:33,957 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-28 02:47:33,957 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-28 02:47:33,957 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-28 02:47:33,957 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-28 02:47:33,957 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-28 02:47:33,957 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-28 02:47:33,958 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-28 02:47:33,958 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-28 02:47:33,958 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-28 02:47:33,958 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-28 02:47:33,958 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-28 02:47:33,959 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-28 02:47:33,959 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-28 02:47:33,959 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-28 02:47:33,959 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-28 02:47:33,959 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-28 02:47:33,959 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-28 02:47:33,960 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-28 02:47:33,960 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-28 02:47:33,960 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-28 02:47:33,960 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-28 02:47:33,960 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-28 02:47:33,960 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-28 02:47:33,961 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-28 02:47:33,961 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-28 02:47:33,961 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-28 02:47:33,961 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-28 02:47:33,961 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-28 02:47:33,961 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-28 02:47:33,962 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-28 02:47:33,962 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-28 02:47:33,962 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-28 02:47:33,962 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-28 02:47:33,962 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-28 02:47:33,963 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-28 02:47:33,963 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-28 02:47:33,963 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-28 02:47:33,963 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-11-28 02:47:33,963 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-28 02:47:33,964 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-28 02:47:33,965 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-28 02:47:33,965 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-28 02:47:33,965 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-28 02:47:33,965 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-28 02:47:33,965 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-28 02:47:33,966 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-28 02:47:33,966 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-28 02:47:33,966 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-28 02:47:33,966 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-28 02:47:33,966 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-28 02:47:33,967 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-28 02:47:33,967 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-28 02:47:33,968 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-28 02:47:33,968 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-28 02:47:33,968 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-28 02:47:33,969 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-28 02:47:33,969 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-28 02:47:33,970 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-28 02:47:33,970 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-28 02:47:33,971 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-28 02:47:33,971 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-28 02:47:33,971 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-28 02:47:33,971 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-28 02:47:33,972 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-28 02:47:33,972 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-28 02:47:33,972 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-28 02:47:33,972 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-28 02:47:33,973 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-28 02:47:33,973 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-28 02:47:33,973 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-28 02:47:33,973 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-28 02:47:33,973 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-28 02:47:33,973 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-28 02:47:33,974 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-28 02:47:33,974 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-28 02:47:33,974 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-28 02:47:33,974 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-28 02:47:33,974 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-28 02:47:33,974 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-28 02:47:33,975 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-28 02:47:33,975 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-28 02:47:33,975 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-28 02:47:33,975 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-28 02:47:33,975 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-28 02:47:33,975 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-28 02:47:33,976 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-28 02:47:33,976 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-28 02:47:33,976 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-28 02:47:33,976 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-28 02:47:33,976 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-28 02:47:33,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-28 02:47:33,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-28 02:47:33,976 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-28 02:47:33,977 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-28 02:47:33,977 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-28 02:47:33,977 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-28 02:47:33,977 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 02:47:34,705 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 02:47:34,705 INFO L297 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-28 02:47:34,707 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:47:34 BoogieIcfgContainer [2019-11-28 02:47:34,707 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 02:47:34,709 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 02:47:34,709 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 02:47:34,712 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 02:47:34,713 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:47:33" (1/3) ... [2019-11-28 02:47:34,714 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@684de11a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:47:34, skipping insertion in model container [2019-11-28 02:47:34,714 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:47:33" (2/3) ... [2019-11-28 02:47:34,715 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@684de11a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:47:34, skipping insertion in model container [2019-11-28 02:47:34,715 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:47:34" (3/3) ... [2019-11-28 02:47:34,716 INFO L109 eAbstractionObserver]: Analyzing ICFG dll-optional-2.i [2019-11-28 02:47:34,726 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 02:47:34,736 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 66 error locations. [2019-11-28 02:47:34,750 INFO L249 AbstractCegarLoop]: Starting to check reachability of 66 error locations. [2019-11-28 02:47:34,769 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 02:47:34,769 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-28 02:47:34,770 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 02:47:34,770 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 02:47:34,771 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 02:47:34,771 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 02:47:34,771 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 02:47:34,771 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 02:47:34,792 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states. [2019-11-28 02:47:34,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-28 02:47:34,801 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:47:34,802 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 02:47:34,803 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr65ENSURES_VIOLATIONMEMORY_LEAK, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr50ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2019-11-28 02:47:34,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:47:34,809 INFO L82 PathProgramCache]: Analyzing trace with hash 922504407, now seen corresponding path program 1 times [2019-11-28 02:47:34,818 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:47:34,819 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674867416] [2019-11-28 02:47:34,819 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:47:34,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:47:34,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:47:35,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 02:47:35,007 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674867416] [2019-11-28 02:47:35,008 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 02:47:35,008 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 02:47:35,009 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999222527] [2019-11-28 02:47:35,014 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 02:47:35,015 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 02:47:35,042 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 02:47:35,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 02:47:35,045 INFO L87 Difference]: Start difference. First operand 140 states. Second operand 4 states. [2019-11-28 02:47:35,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:47:35,486 INFO L93 Difference]: Finished difference Result 140 states and 149 transitions. [2019-11-28 02:47:35,487 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 02:47:35,488 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2019-11-28 02:47:35,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:47:35,502 INFO L225 Difference]: With dead ends: 140 [2019-11-28 02:47:35,502 INFO L226 Difference]: Without dead ends: 136 [2019-11-28 02:47:35,504 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-28 02:47:35,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2019-11-28 02:47:35,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 130. [2019-11-28 02:47:35,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2019-11-28 02:47:35,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 140 transitions. [2019-11-28 02:47:35,562 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 140 transitions. Word has length 7 [2019-11-28 02:47:35,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:47:35,563 INFO L462 AbstractCegarLoop]: Abstraction has 130 states and 140 transitions. [2019-11-28 02:47:35,563 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 02:47:35,564 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 140 transitions. [2019-11-28 02:47:35,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-28 02:47:35,564 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:47:35,564 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 02:47:35,565 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr65ENSURES_VIOLATIONMEMORY_LEAK, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr50ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2019-11-28 02:47:35,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:47:35,566 INFO L82 PathProgramCache]: Analyzing trace with hash 922504408, now seen corresponding path program 1 times [2019-11-28 02:47:35,566 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:47:35,566 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688786909] [2019-11-28 02:47:35,567 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:47:35,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:47:35,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:47:35,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 02:47:35,631 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688786909] [2019-11-28 02:47:35,632 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 02:47:35,632 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 02:47:35,632 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994464361] [2019-11-28 02:47:35,634 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 02:47:35,634 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 02:47:35,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 02:47:35,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 02:47:35,635 INFO L87 Difference]: Start difference. First operand 130 states and 140 transitions. Second operand 4 states. [2019-11-28 02:47:35,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:47:35,931 INFO L93 Difference]: Finished difference Result 125 states and 135 transitions. [2019-11-28 02:47:35,932 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-28 02:47:35,932 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2019-11-28 02:47:35,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:47:35,934 INFO L225 Difference]: With dead ends: 125 [2019-11-28 02:47:35,934 INFO L226 Difference]: Without dead ends: 125 [2019-11-28 02:47:35,935 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 02:47:35,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2019-11-28 02:47:35,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 121. [2019-11-28 02:47:35,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2019-11-28 02:47:35,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 131 transitions. [2019-11-28 02:47:35,946 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 131 transitions. Word has length 7 [2019-11-28 02:47:35,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:47:35,947 INFO L462 AbstractCegarLoop]: Abstraction has 121 states and 131 transitions. [2019-11-28 02:47:35,947 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 02:47:35,947 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 131 transitions. [2019-11-28 02:47:35,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-28 02:47:35,948 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:47:35,948 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 02:47:35,949 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr65ENSURES_VIOLATIONMEMORY_LEAK, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr50ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2019-11-28 02:47:35,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:47:35,950 INFO L82 PathProgramCache]: Analyzing trace with hash 498932383, now seen corresponding path program 1 times [2019-11-28 02:47:35,950 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:47:35,951 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477155265] [2019-11-28 02:47:35,951 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:47:35,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:47:36,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:47:36,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 02:47:36,065 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477155265] [2019-11-28 02:47:36,065 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 02:47:36,066 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-28 02:47:36,066 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910101474] [2019-11-28 02:47:36,066 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-28 02:47:36,067 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 02:47:36,068 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-28 02:47:36,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-28 02:47:36,069 INFO L87 Difference]: Start difference. First operand 121 states and 131 transitions. Second operand 6 states. [2019-11-28 02:47:36,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:47:36,712 INFO L93 Difference]: Finished difference Result 243 states and 262 transitions. [2019-11-28 02:47:36,713 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-28 02:47:36,713 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2019-11-28 02:47:36,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:47:36,715 INFO L225 Difference]: With dead ends: 243 [2019-11-28 02:47:36,715 INFO L226 Difference]: Without dead ends: 243 [2019-11-28 02:47:36,716 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2019-11-28 02:47:36,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2019-11-28 02:47:36,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 120. [2019-11-28 02:47:36,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2019-11-28 02:47:36,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 130 transitions. [2019-11-28 02:47:36,734 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 130 transitions. Word has length 15 [2019-11-28 02:47:36,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:47:36,734 INFO L462 AbstractCegarLoop]: Abstraction has 120 states and 130 transitions. [2019-11-28 02:47:36,734 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-28 02:47:36,734 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 130 transitions. [2019-11-28 02:47:36,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-28 02:47:36,737 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:47:36,737 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 02:47:36,737 INFO L410 AbstractCegarLoop]: === Iteration 4 === [mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr65ENSURES_VIOLATIONMEMORY_LEAK, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr50ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2019-11-28 02:47:36,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:47:36,738 INFO L82 PathProgramCache]: Analyzing trace with hash 498932384, now seen corresponding path program 1 times [2019-11-28 02:47:36,738 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:47:36,739 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098046979] [2019-11-28 02:47:36,739 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:47:36,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:47:36,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:47:36,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 02:47:36,875 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098046979] [2019-11-28 02:47:36,876 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 02:47:36,876 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-28 02:47:36,877 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367817686] [2019-11-28 02:47:36,877 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-28 02:47:36,877 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 02:47:36,878 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-28 02:47:36,878 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-28 02:47:36,878 INFO L87 Difference]: Start difference. First operand 120 states and 130 transitions. Second operand 6 states. [2019-11-28 02:47:37,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:47:37,559 INFO L93 Difference]: Finished difference Result 217 states and 235 transitions. [2019-11-28 02:47:37,562 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-28 02:47:37,562 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2019-11-28 02:47:37,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:47:37,563 INFO L225 Difference]: With dead ends: 217 [2019-11-28 02:47:37,564 INFO L226 Difference]: Without dead ends: 217 [2019-11-28 02:47:37,564 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2019-11-28 02:47:37,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2019-11-28 02:47:37,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 119. [2019-11-28 02:47:37,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2019-11-28 02:47:37,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 129 transitions. [2019-11-28 02:47:37,572 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 129 transitions. Word has length 15 [2019-11-28 02:47:37,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:47:37,572 INFO L462 AbstractCegarLoop]: Abstraction has 119 states and 129 transitions. [2019-11-28 02:47:37,572 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-28 02:47:37,573 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 129 transitions. [2019-11-28 02:47:37,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-28 02:47:37,573 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:47:37,573 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 02:47:37,574 INFO L410 AbstractCegarLoop]: === Iteration 5 === [mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr65ENSURES_VIOLATIONMEMORY_LEAK, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr50ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2019-11-28 02:47:37,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:47:37,574 INFO L82 PathProgramCache]: Analyzing trace with hash -1429919314, now seen corresponding path program 1 times [2019-11-28 02:47:37,575 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:47:37,575 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158627168] [2019-11-28 02:47:37,575 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:47:37,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:47:37,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:47:37,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 02:47:37,635 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158627168] [2019-11-28 02:47:37,635 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 02:47:37,635 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-28 02:47:37,635 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838724162] [2019-11-28 02:47:37,636 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-28 02:47:37,636 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 02:47:37,636 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 02:47:37,637 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-28 02:47:37,637 INFO L87 Difference]: Start difference. First operand 119 states and 129 transitions. Second operand 5 states. [2019-11-28 02:47:37,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:47:37,918 INFO L93 Difference]: Finished difference Result 122 states and 131 transitions. [2019-11-28 02:47:37,918 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-28 02:47:37,918 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2019-11-28 02:47:37,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:47:37,920 INFO L225 Difference]: With dead ends: 122 [2019-11-28 02:47:37,920 INFO L226 Difference]: Without dead ends: 122 [2019-11-28 02:47:37,920 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-28 02:47:37,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2019-11-28 02:47:37,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 113. [2019-11-28 02:47:37,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2019-11-28 02:47:37,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 128 transitions. [2019-11-28 02:47:37,928 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 128 transitions. Word has length 17 [2019-11-28 02:47:37,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:47:37,928 INFO L462 AbstractCegarLoop]: Abstraction has 113 states and 128 transitions. [2019-11-28 02:47:37,929 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-28 02:47:37,929 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 128 transitions. [2019-11-28 02:47:37,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-28 02:47:37,929 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:47:37,930 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 02:47:37,930 INFO L410 AbstractCegarLoop]: === Iteration 6 === [mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr65ENSURES_VIOLATIONMEMORY_LEAK, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr50ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2019-11-28 02:47:37,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:47:37,930 INFO L82 PathProgramCache]: Analyzing trace with hash -1429919313, now seen corresponding path program 1 times [2019-11-28 02:47:37,930 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:47:37,931 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160176827] [2019-11-28 02:47:37,931 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:47:37,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:47:37,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:47:37,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 02:47:37,997 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160176827] [2019-11-28 02:47:37,997 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 02:47:37,997 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-28 02:47:37,997 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936459134] [2019-11-28 02:47:37,998 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-28 02:47:37,998 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 02:47:37,998 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 02:47:37,998 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-28 02:47:37,998 INFO L87 Difference]: Start difference. First operand 113 states and 128 transitions. Second operand 5 states. [2019-11-28 02:47:38,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:47:38,310 INFO L93 Difference]: Finished difference Result 158 states and 173 transitions. [2019-11-28 02:47:38,311 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 02:47:38,311 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2019-11-28 02:47:38,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:47:38,312 INFO L225 Difference]: With dead ends: 158 [2019-11-28 02:47:38,312 INFO L226 Difference]: Without dead ends: 158 [2019-11-28 02:47:38,312 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-28 02:47:38,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2019-11-28 02:47:38,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 134. [2019-11-28 02:47:38,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2019-11-28 02:47:38,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 155 transitions. [2019-11-28 02:47:38,320 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 155 transitions. Word has length 17 [2019-11-28 02:47:38,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:47:38,320 INFO L462 AbstractCegarLoop]: Abstraction has 134 states and 155 transitions. [2019-11-28 02:47:38,320 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-28 02:47:38,321 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 155 transitions. [2019-11-28 02:47:38,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-11-28 02:47:38,321 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:47:38,322 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 02:47:38,322 INFO L410 AbstractCegarLoop]: === Iteration 7 === [mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr65ENSURES_VIOLATIONMEMORY_LEAK, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr50ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2019-11-28 02:47:38,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:47:38,323 INFO L82 PathProgramCache]: Analyzing trace with hash 237074961, now seen corresponding path program 1 times [2019-11-28 02:47:38,323 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:47:38,323 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607572996] [2019-11-28 02:47:38,324 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:47:38,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:47:38,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:47:38,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 02:47:38,374 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607572996] [2019-11-28 02:47:38,374 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 02:47:38,375 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-28 02:47:38,375 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924964398] [2019-11-28 02:47:38,375 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-28 02:47:38,376 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 02:47:38,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-28 02:47:38,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-28 02:47:38,376 INFO L87 Difference]: Start difference. First operand 134 states and 155 transitions. Second operand 6 states. [2019-11-28 02:47:38,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:47:38,748 INFO L93 Difference]: Finished difference Result 179 states and 205 transitions. [2019-11-28 02:47:38,750 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-28 02:47:38,750 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 19 [2019-11-28 02:47:38,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:47:38,752 INFO L225 Difference]: With dead ends: 179 [2019-11-28 02:47:38,752 INFO L226 Difference]: Without dead ends: 179 [2019-11-28 02:47:38,752 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-11-28 02:47:38,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2019-11-28 02:47:38,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 133. [2019-11-28 02:47:38,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2019-11-28 02:47:38,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 153 transitions. [2019-11-28 02:47:38,758 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 153 transitions. Word has length 19 [2019-11-28 02:47:38,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:47:38,758 INFO L462 AbstractCegarLoop]: Abstraction has 133 states and 153 transitions. [2019-11-28 02:47:38,758 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-28 02:47:38,758 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 153 transitions. [2019-11-28 02:47:38,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-11-28 02:47:38,759 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:47:38,759 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 02:47:38,760 INFO L410 AbstractCegarLoop]: === Iteration 8 === [mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr65ENSURES_VIOLATIONMEMORY_LEAK, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr50ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2019-11-28 02:47:38,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:47:38,760 INFO L82 PathProgramCache]: Analyzing trace with hash 237074962, now seen corresponding path program 1 times [2019-11-28 02:47:38,760 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:47:38,760 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975209156] [2019-11-28 02:47:38,761 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:47:38,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:47:38,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:47:38,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 02:47:38,871 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975209156] [2019-11-28 02:47:38,871 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 02:47:38,871 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-28 02:47:38,872 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807652208] [2019-11-28 02:47:38,872 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-28 02:47:38,872 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 02:47:38,872 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-28 02:47:38,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-28 02:47:38,873 INFO L87 Difference]: Start difference. First operand 133 states and 153 transitions. Second operand 6 states. [2019-11-28 02:47:39,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:47:39,315 INFO L93 Difference]: Finished difference Result 199 states and 231 transitions. [2019-11-28 02:47:39,316 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-28 02:47:39,316 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 19 [2019-11-28 02:47:39,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:47:39,317 INFO L225 Difference]: With dead ends: 199 [2019-11-28 02:47:39,317 INFO L226 Difference]: Without dead ends: 199 [2019-11-28 02:47:39,318 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2019-11-28 02:47:39,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2019-11-28 02:47:39,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 132. [2019-11-28 02:47:39,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2019-11-28 02:47:39,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 151 transitions. [2019-11-28 02:47:39,326 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 151 transitions. Word has length 19 [2019-11-28 02:47:39,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:47:39,327 INFO L462 AbstractCegarLoop]: Abstraction has 132 states and 151 transitions. [2019-11-28 02:47:39,327 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-28 02:47:39,327 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 151 transitions. [2019-11-28 02:47:39,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-28 02:47:39,331 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:47:39,331 INFO L410 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] [2019-11-28 02:47:39,332 INFO L410 AbstractCegarLoop]: === Iteration 9 === [mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr65ENSURES_VIOLATIONMEMORY_LEAK, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr50ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2019-11-28 02:47:39,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:47:39,332 INFO L82 PathProgramCache]: Analyzing trace with hash 1719821211, now seen corresponding path program 1 times [2019-11-28 02:47:39,333 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:47:39,333 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047626933] [2019-11-28 02:47:39,334 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:47:39,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:47:39,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:47:39,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 02:47:39,406 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047626933] [2019-11-28 02:47:39,406 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 02:47:39,406 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-28 02:47:39,407 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645379110] [2019-11-28 02:47:39,407 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-28 02:47:39,407 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 02:47:39,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 02:47:39,408 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-28 02:47:39,408 INFO L87 Difference]: Start difference. First operand 132 states and 151 transitions. Second operand 5 states. [2019-11-28 02:47:39,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:47:39,653 INFO L93 Difference]: Finished difference Result 149 states and 164 transitions. [2019-11-28 02:47:39,654 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 02:47:39,654 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2019-11-28 02:47:39,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:47:39,655 INFO L225 Difference]: With dead ends: 149 [2019-11-28 02:47:39,655 INFO L226 Difference]: Without dead ends: 149 [2019-11-28 02:47:39,656 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-28 02:47:39,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2019-11-28 02:47:39,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 132. [2019-11-28 02:47:39,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2019-11-28 02:47:39,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 149 transitions. [2019-11-28 02:47:39,660 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 149 transitions. Word has length 22 [2019-11-28 02:47:39,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:47:39,661 INFO L462 AbstractCegarLoop]: Abstraction has 132 states and 149 transitions. [2019-11-28 02:47:39,661 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-28 02:47:39,661 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 149 transitions. [2019-11-28 02:47:39,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-11-28 02:47:39,662 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:47:39,662 INFO L410 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] [2019-11-28 02:47:39,663 INFO L410 AbstractCegarLoop]: === Iteration 10 === [mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr65ENSURES_VIOLATIONMEMORY_LEAK, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr50ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2019-11-28 02:47:39,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:47:39,663 INFO L82 PathProgramCache]: Analyzing trace with hash 1797605623, now seen corresponding path program 1 times [2019-11-28 02:47:39,663 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:47:39,664 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510050578] [2019-11-28 02:47:39,664 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:47:39,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 02:47:39,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 02:47:39,733 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 02:47:39,733 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-28 02:47:39,763 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 02:47:39 BoogieIcfgContainer [2019-11-28 02:47:39,763 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 02:47:39,764 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 02:47:39,764 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 02:47:39,764 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 02:47:39,765 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:47:34" (3/4) ... [2019-11-28 02:47:39,767 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-28 02:47:39,814 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 02:47:39,815 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 02:47:39,817 INFO L168 Benchmark]: Toolchain (without parser) took 6564.01 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 218.1 MB). Free memory was 952.3 MB in the beginning and 864.9 MB in the end (delta: 87.4 MB). Peak memory consumption was 305.5 MB. Max. memory is 11.5 GB. [2019-11-28 02:47:39,818 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 02:47:39,819 INFO L168 Benchmark]: CACSL2BoogieTranslator took 567.21 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.9 MB). Free memory was 946.9 MB in the beginning and 1.1 GB in the end (delta: -185.2 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. [2019-11-28 02:47:39,819 INFO L168 Benchmark]: Boogie Preprocessor took 67.58 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 11.5 GB. [2019-11-28 02:47:39,820 INFO L168 Benchmark]: RCFGBuilder took 818.12 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 63.7 MB). Peak memory consumption was 63.7 MB. Max. memory is 11.5 GB. [2019-11-28 02:47:39,821 INFO L168 Benchmark]: TraceAbstraction took 5054.68 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 69.2 MB). Free memory was 1.1 GB in the beginning and 872.5 MB in the end (delta: 182.8 MB). Peak memory consumption was 252.0 MB. Max. memory is 11.5 GB. [2019-11-28 02:47:39,822 INFO L168 Benchmark]: Witness Printer took 50.98 ms. Allocated memory is still 1.2 GB. Free memory was 872.5 MB in the beginning and 864.9 MB in the end (delta: 7.6 MB). Peak memory consumption was 7.6 MB. Max. memory is 11.5 GB. [2019-11-28 02:47:39,826 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 567.21 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.9 MB). Free memory was 946.9 MB in the beginning and 1.1 GB in the end (delta: -185.2 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 67.58 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 11.5 GB. * RCFGBuilder took 818.12 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 63.7 MB). Peak memory consumption was 63.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 5054.68 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 69.2 MB). Free memory was 1.1 GB in the beginning and 872.5 MB in the end (delta: 182.8 MB). Peak memory consumption was 252.0 MB. Max. memory is 11.5 GB. * Witness Printer took 50.98 ms. Allocated memory is still 1.2 GB. Free memory was 872.5 MB in the beginning and 864.9 MB in the end (delta: 7.6 MB). Peak memory consumption was 7.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 998]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L986] SLL* head = malloc(sizeof(SLL)); VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}] [L987] head->next = ((void*)0) VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}] [L988] head->prev = ((void*)0) VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}] [L989] COND FALSE !(__VERIFIER_nondet_int()) [L989] COND FALSE !(__VERIFIER_nondet_int()) [L989] head->data = 0 VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}] [L989] head->opt = head VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}] [L990] SLL* x = head; VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, x={-1:0}] [L992] COND FALSE !(__VERIFIER_nondet_int()) [L995] x = head VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, x={-1:0}] [L996] COND TRUE x != ((void*)0) VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, x={-1:0}] [L998] EXPR x->data VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, x={-1:0}, x->data=0] [L998] EXPR x->data == 2 && x->opt == x VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, x={-1:0}, x->data=0, x->data == 2 && x->opt == x=0] [L998] COND TRUE !(x->data == 2 && x->opt == x) [L998] __VERIFIER_error() VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, x={-1:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 140 locations, 66 error locations. Result: UNSAFE, OverallTime: 4.9s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 3.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 899 SDtfs, 1029 SDslu, 1191 SDs, 0 SdLazy, 2887 SolverSat, 112 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 66 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=140occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 394 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 161 NumberOfCodeBlocks, 161 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 129 ConstructedInterpolants, 0 QuantifiedInterpolants, 7722 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...