/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/forester-heap/dll-01-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-86f66a4 [2020-07-07 13:25:12,625 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-07 13:25:12,627 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-07 13:25:12,639 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-07 13:25:12,639 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-07 13:25:12,640 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-07 13:25:12,642 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-07 13:25:12,643 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-07 13:25:12,645 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-07 13:25:12,646 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-07 13:25:12,647 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-07 13:25:12,648 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-07 13:25:12,648 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-07 13:25:12,649 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-07 13:25:12,651 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-07 13:25:12,652 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-07 13:25:12,653 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-07 13:25:12,654 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-07 13:25:12,655 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-07 13:25:12,658 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-07 13:25:12,659 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-07 13:25:12,661 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-07 13:25:12,662 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-07 13:25:12,663 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-07 13:25:12,665 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-07 13:25:12,666 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-07 13:25:12,666 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-07 13:25:12,667 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-07 13:25:12,667 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-07 13:25:12,668 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-07 13:25:12,669 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-07 13:25:12,670 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-07 13:25:12,670 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-07 13:25:12,671 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-07 13:25:12,672 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-07 13:25:12,673 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-07 13:25:12,673 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-07 13:25:12,673 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-07 13:25:12,674 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-07 13:25:12,675 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-07 13:25:12,675 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-07 13:25:12,679 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-07 13:25:12,688 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-07 13:25:12,689 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-07 13:25:12,690 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-07 13:25:12,690 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-07 13:25:12,690 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-07 13:25:12,691 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-07 13:25:12,691 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-07 13:25:12,691 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-07 13:25:12,691 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-07 13:25:12,691 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-07 13:25:12,692 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-07 13:25:12,692 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-07 13:25:12,692 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-07 13:25:12,692 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-07 13:25:12,692 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-07 13:25:12,693 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-07 13:25:12,693 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-07 13:25:12,693 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-07 13:25:12,693 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 13:25:12,694 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-07 13:25:12,694 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-07 13:25:12,694 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-07 13:25:12,694 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-07 13:25:12,992 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-07 13:25:13,019 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-07 13:25:13,023 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-07 13:25:13,025 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-07 13:25:13,026 INFO L275 PluginConnector]: CDTParser initialized [2020-07-07 13:25:13,026 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/dll-01-1.i [2020-07-07 13:25:13,110 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb53a421e/d4064483b0e4421cb8f472cfe9a164e5/FLAG654767c50 [2020-07-07 13:25:13,737 INFO L306 CDTParser]: Found 1 translation units. [2020-07-07 13:25:13,738 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-01-1.i [2020-07-07 13:25:13,750 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb53a421e/d4064483b0e4421cb8f472cfe9a164e5/FLAG654767c50 [2020-07-07 13:25:14,039 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb53a421e/d4064483b0e4421cb8f472cfe9a164e5 [2020-07-07 13:25:14,050 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-07 13:25:14,052 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-07 13:25:14,054 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-07 13:25:14,054 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-07 13:25:14,057 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-07 13:25:14,059 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 01:25:14" (1/1) ... [2020-07-07 13:25:14,064 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@446c2e81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:25:14, skipping insertion in model container [2020-07-07 13:25:14,065 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 01:25:14" (1/1) ... [2020-07-07 13:25:14,074 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-07 13:25:14,133 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-07 13:25:14,596 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 13:25:14,604 INFO L203 MainTranslator]: Completed pre-run [2020-07-07 13:25:14,649 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 13:25:14,704 INFO L208 MainTranslator]: Completed translation [2020-07-07 13:25:14,705 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:25:14 WrapperNode [2020-07-07 13:25:14,705 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-07 13:25:14,706 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-07 13:25:14,706 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-07 13:25:14,706 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-07 13:25:14,716 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:25:14" (1/1) ... [2020-07-07 13:25:14,717 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:25:14" (1/1) ... [2020-07-07 13:25:14,736 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:25:14" (1/1) ... [2020-07-07 13:25:14,736 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:25:14" (1/1) ... [2020-07-07 13:25:14,775 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:25:14" (1/1) ... [2020-07-07 13:25:14,788 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:25:14" (1/1) ... [2020-07-07 13:25:14,798 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:25:14" (1/1) ... [2020-07-07 13:25:14,811 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-07 13:25:14,811 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-07 13:25:14,811 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-07 13:25:14,812 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-07 13:25:14,816 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:25:14" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 13:25:14,889 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-07 13:25:14,889 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-07 13:25:14,889 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-07 13:25:14,890 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-07-07 13:25:14,890 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-07-07 13:25:14,890 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-07-07 13:25:14,890 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-07-07 13:25:14,890 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-07-07 13:25:14,890 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-07-07 13:25:14,891 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-07-07 13:25:14,891 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-07-07 13:25:14,891 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-07-07 13:25:14,891 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-07-07 13:25:14,891 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-07-07 13:25:14,891 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-07-07 13:25:14,892 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-07-07 13:25:14,892 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-07-07 13:25:14,892 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-07-07 13:25:14,892 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-07-07 13:25:14,892 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-07-07 13:25:14,893 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-07-07 13:25:14,893 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-07-07 13:25:14,893 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-07-07 13:25:14,893 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-07-07 13:25:14,893 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-07-07 13:25:14,893 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-07-07 13:25:14,894 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-07-07 13:25:14,894 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-07-07 13:25:14,894 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-07-07 13:25:14,894 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-07-07 13:25:14,894 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-07-07 13:25:14,895 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-07-07 13:25:14,895 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-07-07 13:25:14,895 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-07-07 13:25:14,895 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-07-07 13:25:14,895 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-07-07 13:25:14,895 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-07-07 13:25:14,896 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-07-07 13:25:14,896 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-07-07 13:25:14,896 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-07-07 13:25:14,896 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-07-07 13:25:14,896 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-07-07 13:25:14,896 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-07-07 13:25:14,897 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-07-07 13:25:14,897 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-07-07 13:25:14,897 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-07-07 13:25:14,897 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-07-07 13:25:14,897 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-07-07 13:25:14,897 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-07-07 13:25:14,897 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-07-07 13:25:14,897 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-07-07 13:25:14,898 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-07-07 13:25:14,898 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-07-07 13:25:14,898 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-07 13:25:14,898 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-07-07 13:25:14,898 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-07-07 13:25:14,898 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-07 13:25:14,899 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-07-07 13:25:14,899 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-07-07 13:25:14,899 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-07-07 13:25:14,899 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-07-07 13:25:14,899 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-07-07 13:25:14,899 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-07 13:25:14,899 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-07-07 13:25:14,900 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-07-07 13:25:14,900 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-07-07 13:25:14,900 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-07 13:25:14,900 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-07-07 13:25:14,900 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-07-07 13:25:14,900 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-07-07 13:25:14,901 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-07-07 13:25:14,901 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-07-07 13:25:14,901 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-07-07 13:25:14,901 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-07-07 13:25:14,901 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-07-07 13:25:14,901 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-07-07 13:25:14,902 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-07-07 13:25:14,902 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-07-07 13:25:14,902 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-07-07 13:25:14,902 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-07-07 13:25:14,902 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-07-07 13:25:14,902 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-07-07 13:25:14,902 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-07-07 13:25:14,903 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-07-07 13:25:14,903 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-07-07 13:25:14,903 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-07-07 13:25:14,903 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-07-07 13:25:14,903 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-07-07 13:25:14,903 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-07-07 13:25:14,904 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-07-07 13:25:14,904 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-07-07 13:25:14,904 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-07-07 13:25:14,904 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-07-07 13:25:14,904 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-07-07 13:25:14,904 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-07-07 13:25:14,904 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-07-07 13:25:14,905 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-07-07 13:25:14,905 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-07-07 13:25:14,905 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-07-07 13:25:14,905 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-07-07 13:25:14,905 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-07-07 13:25:14,905 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-07-07 13:25:14,905 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-07-07 13:25:14,906 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-07-07 13:25:14,906 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-07-07 13:25:14,906 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-07-07 13:25:14,906 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-07 13:25:14,906 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-07 13:25:14,906 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-07 13:25:14,906 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-07 13:25:14,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-07 13:25:14,907 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-07 13:25:14,907 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-07 13:25:14,907 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-07 13:25:14,907 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-07 13:25:15,673 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-07 13:25:15,674 INFO L295 CfgBuilder]: Removed 30 assume(true) statements. [2020-07-07 13:25:15,688 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 01:25:15 BoogieIcfgContainer [2020-07-07 13:25:15,688 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-07 13:25:15,691 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-07 13:25:15,692 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-07 13:25:15,697 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-07 13:25:15,697 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.07 01:25:14" (1/3) ... [2020-07-07 13:25:15,698 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a579695 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 01:25:15, skipping insertion in model container [2020-07-07 13:25:15,698 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:25:14" (2/3) ... [2020-07-07 13:25:15,699 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a579695 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 01:25:15, skipping insertion in model container [2020-07-07 13:25:15,700 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 01:25:15" (3/3) ... [2020-07-07 13:25:15,702 INFO L109 eAbstractionObserver]: Analyzing ICFG dll-01-1.i [2020-07-07 13:25:15,714 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-07 13:25:15,724 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 13 error locations. [2020-07-07 13:25:15,739 INFO L251 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2020-07-07 13:25:15,769 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-07 13:25:15,769 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-07 13:25:15,769 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-07 13:25:15,770 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-07 13:25:15,770 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-07 13:25:15,770 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-07 13:25:15,770 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-07 13:25:15,771 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-07 13:25:15,801 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states. [2020-07-07 13:25:15,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-07-07 13:25:15,812 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:25:15,813 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 13:25:15,814 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:25:15,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:25:15,821 INFO L82 PathProgramCache]: Analyzing trace with hash -1409190174, now seen corresponding path program 1 times [2020-07-07 13:25:15,831 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:25:15,832 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1880293133] [2020-07-07 13:25:15,832 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:25:15,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:25:16,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:25:16,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:25:16,125 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:25:16,127 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1880293133] [2020-07-07 13:25:16,129 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:25:16,130 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-07 13:25:16,130 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893760270] [2020-07-07 13:25:16,136 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-07 13:25:16,136 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:25:16,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-07 13:25:16,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-07 13:25:16,154 INFO L87 Difference]: Start difference. First operand 171 states. Second operand 5 states. [2020-07-07 13:25:16,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:25:16,639 INFO L93 Difference]: Finished difference Result 359 states and 475 transitions. [2020-07-07 13:25:16,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-07 13:25:16,641 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-07-07 13:25:16,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:25:16,655 INFO L225 Difference]: With dead ends: 359 [2020-07-07 13:25:16,655 INFO L226 Difference]: Without dead ends: 194 [2020-07-07 13:25:16,660 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-07 13:25:16,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2020-07-07 13:25:16,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 164. [2020-07-07 13:25:16,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164 states. [2020-07-07 13:25:16,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 173 transitions. [2020-07-07 13:25:16,733 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 173 transitions. Word has length 13 [2020-07-07 13:25:16,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:25:16,733 INFO L479 AbstractCegarLoop]: Abstraction has 164 states and 173 transitions. [2020-07-07 13:25:16,733 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-07 13:25:16,734 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 173 transitions. [2020-07-07 13:25:16,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-07-07 13:25:16,735 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:25:16,735 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 13:25:16,735 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-07 13:25:16,736 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:25:16,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:25:16,736 INFO L82 PathProgramCache]: Analyzing trace with hash -1469410252, now seen corresponding path program 1 times [2020-07-07 13:25:16,737 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:25:16,737 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [731919676] [2020-07-07 13:25:16,737 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:25:16,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:25:16,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:25:16,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:25:16,871 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:25:16,872 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [731919676] [2020-07-07 13:25:16,872 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:25:16,873 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-07 13:25:16,873 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271077225] [2020-07-07 13:25:16,874 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-07 13:25:16,878 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:25:16,878 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-07 13:25:16,878 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-07 13:25:16,879 INFO L87 Difference]: Start difference. First operand 164 states and 173 transitions. Second operand 4 states. [2020-07-07 13:25:17,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:25:17,216 INFO L93 Difference]: Finished difference Result 170 states and 179 transitions. [2020-07-07 13:25:17,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-07 13:25:17,216 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2020-07-07 13:25:17,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:25:17,219 INFO L225 Difference]: With dead ends: 170 [2020-07-07 13:25:17,219 INFO L226 Difference]: Without dead ends: 165 [2020-07-07 13:25:17,221 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-07 13:25:17,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2020-07-07 13:25:17,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 165. [2020-07-07 13:25:17,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 165 states. [2020-07-07 13:25:17,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 174 transitions. [2020-07-07 13:25:17,256 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 174 transitions. Word has length 25 [2020-07-07 13:25:17,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:25:17,256 INFO L479 AbstractCegarLoop]: Abstraction has 165 states and 174 transitions. [2020-07-07 13:25:17,257 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-07 13:25:17,257 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 174 transitions. [2020-07-07 13:25:17,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-07-07 13:25:17,258 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:25:17,258 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 13:25:17,258 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-07 13:25:17,259 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:25:17,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:25:17,259 INFO L82 PathProgramCache]: Analyzing trace with hash -155961871, now seen corresponding path program 1 times [2020-07-07 13:25:17,260 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:25:17,260 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1048646644] [2020-07-07 13:25:17,260 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:25:17,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:25:17,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:25:17,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:25:17,439 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:25:17,440 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1048646644] [2020-07-07 13:25:17,440 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:25:17,440 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-07 13:25:17,441 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581711909] [2020-07-07 13:25:17,441 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-07 13:25:17,441 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:25:17,442 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-07 13:25:17,442 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-07-07 13:25:17,442 INFO L87 Difference]: Start difference. First operand 165 states and 174 transitions. Second operand 8 states. [2020-07-07 13:25:18,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:25:18,048 INFO L93 Difference]: Finished difference Result 254 states and 269 transitions. [2020-07-07 13:25:18,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-07-07 13:25:18,049 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 27 [2020-07-07 13:25:18,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:25:18,051 INFO L225 Difference]: With dead ends: 254 [2020-07-07 13:25:18,051 INFO L226 Difference]: Without dead ends: 249 [2020-07-07 13:25:18,055 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2020-07-07 13:25:18,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2020-07-07 13:25:18,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 159. [2020-07-07 13:25:18,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 159 states. [2020-07-07 13:25:18,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 168 transitions. [2020-07-07 13:25:18,095 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 168 transitions. Word has length 27 [2020-07-07 13:25:18,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:25:18,096 INFO L479 AbstractCegarLoop]: Abstraction has 159 states and 168 transitions. [2020-07-07 13:25:18,096 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-07 13:25:18,096 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 168 transitions. [2020-07-07 13:25:18,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-07-07 13:25:18,098 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:25:18,098 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 13:25:18,098 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-07 13:25:18,099 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:25:18,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:25:18,100 INFO L82 PathProgramCache]: Analyzing trace with hash 1500955686, now seen corresponding path program 1 times [2020-07-07 13:25:18,100 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:25:18,100 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [241551127] [2020-07-07 13:25:18,101 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:25:18,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:25:18,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:25:18,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:25:18,230 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:25:18,230 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [241551127] [2020-07-07 13:25:18,230 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:25:18,231 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-07 13:25:18,231 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407148995] [2020-07-07 13:25:18,234 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-07 13:25:18,234 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:25:18,235 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-07 13:25:18,235 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-07 13:25:18,235 INFO L87 Difference]: Start difference. First operand 159 states and 168 transitions. Second operand 6 states. [2020-07-07 13:25:18,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:25:18,645 INFO L93 Difference]: Finished difference Result 377 states and 399 transitions. [2020-07-07 13:25:18,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-07 13:25:18,648 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2020-07-07 13:25:18,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:25:18,650 INFO L225 Difference]: With dead ends: 377 [2020-07-07 13:25:18,653 INFO L226 Difference]: Without dead ends: 249 [2020-07-07 13:25:18,655 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-07-07 13:25:18,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2020-07-07 13:25:18,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 162. [2020-07-07 13:25:18,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2020-07-07 13:25:18,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 171 transitions. [2020-07-07 13:25:18,690 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 171 transitions. Word has length 33 [2020-07-07 13:25:18,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:25:18,691 INFO L479 AbstractCegarLoop]: Abstraction has 162 states and 171 transitions. [2020-07-07 13:25:18,691 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-07 13:25:18,691 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 171 transitions. [2020-07-07 13:25:18,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-07-07 13:25:18,692 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:25:18,693 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 13:25:18,693 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-07 13:25:18,693 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:25:18,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:25:18,694 INFO L82 PathProgramCache]: Analyzing trace with hash -820684573, now seen corresponding path program 1 times [2020-07-07 13:25:18,694 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:25:18,694 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2073678500] [2020-07-07 13:25:18,695 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:25:18,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:25:18,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:25:18,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:25:18,819 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:25:18,820 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2073678500] [2020-07-07 13:25:18,820 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:25:18,820 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-07 13:25:18,821 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319785578] [2020-07-07 13:25:18,822 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-07 13:25:18,822 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:25:18,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-07 13:25:18,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-07 13:25:18,824 INFO L87 Difference]: Start difference. First operand 162 states and 171 transitions. Second operand 6 states. [2020-07-07 13:25:19,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:25:19,160 INFO L93 Difference]: Finished difference Result 270 states and 285 transitions. [2020-07-07 13:25:19,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-07 13:25:19,161 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 35 [2020-07-07 13:25:19,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:25:19,162 INFO L225 Difference]: With dead ends: 270 [2020-07-07 13:25:19,163 INFO L226 Difference]: Without dead ends: 238 [2020-07-07 13:25:19,165 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-07-07 13:25:19,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2020-07-07 13:25:19,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 161. [2020-07-07 13:25:19,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 161 states. [2020-07-07 13:25:19,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 170 transitions. [2020-07-07 13:25:19,191 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 170 transitions. Word has length 35 [2020-07-07 13:25:19,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:25:19,192 INFO L479 AbstractCegarLoop]: Abstraction has 161 states and 170 transitions. [2020-07-07 13:25:19,192 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-07 13:25:19,192 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 170 transitions. [2020-07-07 13:25:19,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-07-07 13:25:19,202 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:25:19,202 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 13:25:19,202 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-07 13:25:19,202 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:25:19,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:25:19,203 INFO L82 PathProgramCache]: Analyzing trace with hash -2091807586, now seen corresponding path program 1 times [2020-07-07 13:25:19,203 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:25:19,203 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1963581528] [2020-07-07 13:25:19,203 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:25:19,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:25:19,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:25:19,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:25:19,376 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:25:19,376 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1963581528] [2020-07-07 13:25:19,377 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:25:19,377 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-07-07 13:25:19,377 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521813589] [2020-07-07 13:25:19,377 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-07-07 13:25:19,378 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:25:19,378 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-07-07 13:25:19,378 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2020-07-07 13:25:19,378 INFO L87 Difference]: Start difference. First operand 161 states and 170 transitions. Second operand 12 states. [2020-07-07 13:25:20,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:25:20,121 INFO L93 Difference]: Finished difference Result 286 states and 302 transitions. [2020-07-07 13:25:20,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-07-07 13:25:20,121 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 42 [2020-07-07 13:25:20,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:25:20,123 INFO L225 Difference]: With dead ends: 286 [2020-07-07 13:25:20,126 INFO L226 Difference]: Without dead ends: 282 [2020-07-07 13:25:20,127 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=92, Invalid=288, Unknown=0, NotChecked=0, Total=380 [2020-07-07 13:25:20,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2020-07-07 13:25:20,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 176. [2020-07-07 13:25:20,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 176 states. [2020-07-07 13:25:20,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 186 transitions. [2020-07-07 13:25:20,152 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 186 transitions. Word has length 42 [2020-07-07 13:25:20,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:25:20,153 INFO L479 AbstractCegarLoop]: Abstraction has 176 states and 186 transitions. [2020-07-07 13:25:20,153 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-07-07 13:25:20,154 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 186 transitions. [2020-07-07 13:25:20,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-07-07 13:25:20,156 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:25:20,156 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 13:25:20,156 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-07 13:25:20,157 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:25:20,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:25:20,157 INFO L82 PathProgramCache]: Analyzing trace with hash 654436304, now seen corresponding path program 1 times [2020-07-07 13:25:20,157 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:25:20,158 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1837076072] [2020-07-07 13:25:20,158 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:25:20,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:25:20,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:25:20,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:25:20,236 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:25:20,236 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1837076072] [2020-07-07 13:25:20,236 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:25:20,236 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-07 13:25:20,237 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213554747] [2020-07-07 13:25:20,237 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-07 13:25:20,237 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:25:20,237 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-07 13:25:20,238 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-07 13:25:20,238 INFO L87 Difference]: Start difference. First operand 176 states and 186 transitions. Second operand 4 states. [2020-07-07 13:25:20,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:25:20,491 INFO L93 Difference]: Finished difference Result 282 states and 301 transitions. [2020-07-07 13:25:20,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-07 13:25:20,492 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 43 [2020-07-07 13:25:20,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:25:20,496 INFO L225 Difference]: With dead ends: 282 [2020-07-07 13:25:20,496 INFO L226 Difference]: Without dead ends: 215 [2020-07-07 13:25:20,497 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-07 13:25:20,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2020-07-07 13:25:20,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 179. [2020-07-07 13:25:20,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 179 states. [2020-07-07 13:25:20,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 190 transitions. [2020-07-07 13:25:20,524 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 190 transitions. Word has length 43 [2020-07-07 13:25:20,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:25:20,525 INFO L479 AbstractCegarLoop]: Abstraction has 179 states and 190 transitions. [2020-07-07 13:25:20,525 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-07 13:25:20,525 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 190 transitions. [2020-07-07 13:25:20,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-07-07 13:25:20,527 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:25:20,528 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 13:25:20,528 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-07-07 13:25:20,528 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:25:20,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:25:20,529 INFO L82 PathProgramCache]: Analyzing trace with hash 1847672787, now seen corresponding path program 1 times [2020-07-07 13:25:20,529 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:25:20,530 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1520460191] [2020-07-07 13:25:20,531 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:25:20,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:25:20,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:25:20,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:25:20,618 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:25:20,618 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1520460191] [2020-07-07 13:25:20,619 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:25:20,619 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-07 13:25:20,619 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112630543] [2020-07-07 13:25:20,621 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-07 13:25:20,622 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:25:20,622 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-07 13:25:20,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-07 13:25:20,623 INFO L87 Difference]: Start difference. First operand 179 states and 190 transitions. Second operand 4 states. [2020-07-07 13:25:20,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:25:20,873 INFO L93 Difference]: Finished difference Result 179 states and 190 transitions. [2020-07-07 13:25:20,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-07 13:25:20,874 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 45 [2020-07-07 13:25:20,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:25:20,875 INFO L225 Difference]: With dead ends: 179 [2020-07-07 13:25:20,877 INFO L226 Difference]: Without dead ends: 177 [2020-07-07 13:25:20,878 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-07 13:25:20,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2020-07-07 13:25:20,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 177. [2020-07-07 13:25:20,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 177 states. [2020-07-07 13:25:20,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 188 transitions. [2020-07-07 13:25:20,905 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 188 transitions. Word has length 45 [2020-07-07 13:25:20,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:25:20,905 INFO L479 AbstractCegarLoop]: Abstraction has 177 states and 188 transitions. [2020-07-07 13:25:20,905 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-07 13:25:20,905 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 188 transitions. [2020-07-07 13:25:20,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-07-07 13:25:20,907 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:25:20,907 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 13:25:20,908 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-07-07 13:25:20,908 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:25:20,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:25:20,909 INFO L82 PathProgramCache]: Analyzing trace with hash 11890970, now seen corresponding path program 1 times [2020-07-07 13:25:20,909 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:25:20,909 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [136156857] [2020-07-07 13:25:20,910 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:25:20,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:25:21,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:25:21,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:25:21,186 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:25:21,187 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [136156857] [2020-07-07 13:25:21,187 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:25:21,187 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-07-07 13:25:21,193 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111123236] [2020-07-07 13:25:21,194 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-07-07 13:25:21,194 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:25:21,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-07-07 13:25:21,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-07-07 13:25:21,196 INFO L87 Difference]: Start difference. First operand 177 states and 188 transitions. Second operand 11 states. [2020-07-07 13:25:22,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:25:22,130 INFO L93 Difference]: Finished difference Result 374 states and 398 transitions. [2020-07-07 13:25:22,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-07-07 13:25:22,130 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 49 [2020-07-07 13:25:22,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:25:22,134 INFO L225 Difference]: With dead ends: 374 [2020-07-07 13:25:22,134 INFO L226 Difference]: Without dead ends: 306 [2020-07-07 13:25:22,135 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=145, Invalid=407, Unknown=0, NotChecked=0, Total=552 [2020-07-07 13:25:22,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2020-07-07 13:25:22,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 196. [2020-07-07 13:25:22,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 196 states. [2020-07-07 13:25:22,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 208 transitions. [2020-07-07 13:25:22,164 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 208 transitions. Word has length 49 [2020-07-07 13:25:22,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:25:22,165 INFO L479 AbstractCegarLoop]: Abstraction has 196 states and 208 transitions. [2020-07-07 13:25:22,165 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-07-07 13:25:22,165 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 208 transitions. [2020-07-07 13:25:22,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-07-07 13:25:22,166 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:25:22,166 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 13:25:22,166 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-07-07 13:25:22,166 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:25:22,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:25:22,167 INFO L82 PathProgramCache]: Analyzing trace with hash 1643041774, now seen corresponding path program 1 times [2020-07-07 13:25:22,167 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:25:22,167 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1675668261] [2020-07-07 13:25:22,167 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:25:22,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:25:22,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:25:22,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:25:22,620 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:25:22,621 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1675668261] [2020-07-07 13:25:22,621 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:25:22,621 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-07-07 13:25:22,621 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329271591] [2020-07-07 13:25:22,622 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-07-07 13:25:22,622 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:25:22,622 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-07-07 13:25:22,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2020-07-07 13:25:22,623 INFO L87 Difference]: Start difference. First operand 196 states and 208 transitions. Second operand 14 states. [2020-07-07 13:25:23,750 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 70 [2020-07-07 13:25:24,254 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 65 [2020-07-07 13:25:25,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:25:25,203 INFO L93 Difference]: Finished difference Result 589 states and 622 transitions. [2020-07-07 13:25:25,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-07-07 13:25:25,203 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 54 [2020-07-07 13:25:25,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:25:25,207 INFO L225 Difference]: With dead ends: 589 [2020-07-07 13:25:25,207 INFO L226 Difference]: Without dead ends: 586 [2020-07-07 13:25:25,208 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=252, Invalid=804, Unknown=0, NotChecked=0, Total=1056 [2020-07-07 13:25:25,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 586 states. [2020-07-07 13:25:25,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 586 to 213. [2020-07-07 13:25:25,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 213 states. [2020-07-07 13:25:25,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 226 transitions. [2020-07-07 13:25:25,247 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 226 transitions. Word has length 54 [2020-07-07 13:25:25,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:25:25,247 INFO L479 AbstractCegarLoop]: Abstraction has 213 states and 226 transitions. [2020-07-07 13:25:25,248 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-07-07 13:25:25,248 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 226 transitions. [2020-07-07 13:25:25,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-07-07 13:25:25,249 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:25:25,249 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 13:25:25,249 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-07-07 13:25:25,249 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:25:25,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:25:25,250 INFO L82 PathProgramCache]: Analyzing trace with hash 358720869, now seen corresponding path program 1 times [2020-07-07 13:25:25,250 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:25:25,250 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [853583363] [2020-07-07 13:25:25,250 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:25:25,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:25:25,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:25:25,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:25:25,379 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:25:25,380 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [853583363] [2020-07-07 13:25:25,380 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:25:25,380 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-07 13:25:25,380 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168361874] [2020-07-07 13:25:25,381 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-07 13:25:25,381 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:25:25,381 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-07 13:25:25,381 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-07-07 13:25:25,382 INFO L87 Difference]: Start difference. First operand 213 states and 226 transitions. Second operand 8 states. [2020-07-07 13:25:25,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:25:25,887 INFO L93 Difference]: Finished difference Result 297 states and 316 transitions. [2020-07-07 13:25:25,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-07 13:25:25,888 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 54 [2020-07-07 13:25:25,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:25:25,889 INFO L225 Difference]: With dead ends: 297 [2020-07-07 13:25:25,890 INFO L226 Difference]: Without dead ends: 267 [2020-07-07 13:25:25,890 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2020-07-07 13:25:25,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2020-07-07 13:25:25,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 248. [2020-07-07 13:25:25,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 248 states. [2020-07-07 13:25:25,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 268 transitions. [2020-07-07 13:25:25,935 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 268 transitions. Word has length 54 [2020-07-07 13:25:25,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:25:25,936 INFO L479 AbstractCegarLoop]: Abstraction has 248 states and 268 transitions. [2020-07-07 13:25:25,936 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-07 13:25:25,936 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 268 transitions. [2020-07-07 13:25:25,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-07-07 13:25:25,937 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:25:25,937 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 13:25:25,937 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-07-07 13:25:25,937 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:25:25,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:25:25,938 INFO L82 PathProgramCache]: Analyzing trace with hash 1270543956, now seen corresponding path program 1 times [2020-07-07 13:25:25,938 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:25:25,938 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1943412999] [2020-07-07 13:25:25,938 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:25:25,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:25:25,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:25:25,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:25:25,972 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:25:25,972 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1943412999] [2020-07-07 13:25:25,972 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:25:25,972 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-07 13:25:25,972 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520660949] [2020-07-07 13:25:25,973 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-07 13:25:25,973 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:25:25,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-07 13:25:25,973 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-07 13:25:25,974 INFO L87 Difference]: Start difference. First operand 248 states and 268 transitions. Second operand 4 states. [2020-07-07 13:25:26,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:25:26,232 INFO L93 Difference]: Finished difference Result 254 states and 274 transitions. [2020-07-07 13:25:26,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-07 13:25:26,233 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 56 [2020-07-07 13:25:26,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:25:26,235 INFO L225 Difference]: With dead ends: 254 [2020-07-07 13:25:26,235 INFO L226 Difference]: Without dead ends: 249 [2020-07-07 13:25:26,236 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-07 13:25:26,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2020-07-07 13:25:26,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 249. [2020-07-07 13:25:26,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 249 states. [2020-07-07 13:25:26,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 269 transitions. [2020-07-07 13:25:26,277 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 269 transitions. Word has length 56 [2020-07-07 13:25:26,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:25:26,277 INFO L479 AbstractCegarLoop]: Abstraction has 249 states and 269 transitions. [2020-07-07 13:25:26,277 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-07 13:25:26,277 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 269 transitions. [2020-07-07 13:25:26,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-07-07 13:25:26,278 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:25:26,278 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 13:25:26,279 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-07-07 13:25:26,279 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:25:26,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:25:26,279 INFO L82 PathProgramCache]: Analyzing trace with hash 2002844954, now seen corresponding path program 1 times [2020-07-07 13:25:26,279 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:25:26,280 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1792446379] [2020-07-07 13:25:26,280 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:25:26,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 13:25:26,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 13:25:26,340 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:25:26,341 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-07 13:25:26,341 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-07 13:25:26,342 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-07-07 13:25:26,362 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.07 01:25:26 BoogieIcfgContainer [2020-07-07 13:25:26,363 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-07 13:25:26,365 INFO L168 Benchmark]: Toolchain (without parser) took 12312.60 ms. Allocated memory was 137.4 MB in the beginning and 354.4 MB in the end (delta: 217.1 MB). Free memory was 99.0 MB in the beginning and 188.2 MB in the end (delta: -89.2 MB). Peak memory consumption was 127.8 MB. Max. memory is 7.1 GB. [2020-07-07 13:25:26,365 INFO L168 Benchmark]: CDTParser took 0.96 ms. Allocated memory is still 137.4 MB. Free memory is still 119.4 MB. There was no memory consumed. Max. memory is 7.1 GB. [2020-07-07 13:25:26,366 INFO L168 Benchmark]: CACSL2BoogieTranslator took 651.55 ms. Allocated memory was 137.4 MB in the beginning and 201.9 MB in the end (delta: 64.5 MB). Free memory was 98.8 MB in the beginning and 168.5 MB in the end (delta: -69.7 MB). Peak memory consumption was 26.4 MB. Max. memory is 7.1 GB. [2020-07-07 13:25:26,367 INFO L168 Benchmark]: Boogie Preprocessor took 105.14 ms. Allocated memory is still 201.9 MB. Free memory was 168.5 MB in the beginning and 164.5 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. [2020-07-07 13:25:26,367 INFO L168 Benchmark]: RCFGBuilder took 877.76 ms. Allocated memory is still 201.9 MB. Free memory was 164.5 MB in the beginning and 101.6 MB in the end (delta: 62.9 MB). Peak memory consumption was 62.9 MB. Max. memory is 7.1 GB. [2020-07-07 13:25:26,368 INFO L168 Benchmark]: TraceAbstraction took 10671.34 ms. Allocated memory was 201.9 MB in the beginning and 354.4 MB in the end (delta: 152.6 MB). Free memory was 101.0 MB in the beginning and 188.2 MB in the end (delta: -87.3 MB). Peak memory consumption was 65.3 MB. Max. memory is 7.1 GB. [2020-07-07 13:25:26,371 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.96 ms. Allocated memory is still 137.4 MB. Free memory is still 119.4 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 651.55 ms. Allocated memory was 137.4 MB in the beginning and 201.9 MB in the end (delta: 64.5 MB). Free memory was 98.8 MB in the beginning and 168.5 MB in the end (delta: -69.7 MB). Peak memory consumption was 26.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 105.14 ms. Allocated memory is still 201.9 MB. Free memory was 168.5 MB in the beginning and 164.5 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 877.76 ms. Allocated memory is still 201.9 MB. Free memory was 164.5 MB in the beginning and 101.6 MB in the end (delta: 62.9 MB). Peak memory consumption was 62.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 10671.34 ms. Allocated memory was 201.9 MB in the beginning and 354.4 MB in the end (delta: 152.6 MB). Free memory was 101.0 MB in the beginning and 188.2 MB in the end (delta: -87.3 MB). Peak memory consumption was 65.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1029]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L992] SLL* list = malloc(sizeof(SLL)); [L993] list->next = ((void*)0) [L994] list->prev = ((void*)0) [L995] COND FALSE !(!(list != ((void*)0))) [L995] COND FALSE !(__VERIFIER_nondet_int()) [L995] list->inner = malloc(sizeof(SLL)) [L995] EXPR list->inner [L995] list->inner->next = ((void*)0) [L995] EXPR list->inner [L995] list->inner->inner = ((void*)0) [L995] EXPR list->inner [L995] EXPR list->inner != ((void*)0) || list->inner == ((void*)0) [L995] COND FALSE !(!(list->inner != ((void*)0) || list->inner == ((void*)0))) [L997] SLL* end = list; [L1000] COND FALSE !(__VERIFIER_nondet_int()) [L1011] end = ((void*)0) [L1012] end = list [L1015] COND FALSE !(!(((void*)0) != end)) [L1017] COND TRUE ((void*)0) != end [L1019] int len = 0; [L1020] EXPR end->inner [L1020] SLL* inner = end->inner; [L1021] COND TRUE ((void*)0) != inner [L1023] COND TRUE len == 0 [L1024] len = 1 [L1027] COND FALSE !(!(((void*)0) != inner)) [L1028] EXPR inner->inner [L1028] COND FALSE !(!(((void*)0) == inner->inner)) [L1029] EXPR inner->next [L1029] COND TRUE !(((void*)0) != inner->next) [L1029] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 171 locations, 13 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 10.5s, OverallIterations: 13, TraceHistogramMax: 1, AutomataDifference: 7.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1954 SDtfs, 3678 SDslu, 5794 SDs, 0 SdLazy, 4088 SolverSat, 116 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 159 GetRequests, 37 SyntacticMatches, 4 SemanticMatches, 118 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 261 ImplicationChecksByTransitivity, 2.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=249occurred in iteration=12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 12 MinimizatonAttempts, 928 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...