/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/list-properties/splice-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-3af5e1f [2020-09-04 22:04:59,944 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-04 22:04:59,949 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-04 22:04:59,992 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-04 22:04:59,992 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-04 22:05:00,000 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-04 22:05:00,004 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-04 22:05:00,008 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-04 22:05:00,010 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-04 22:05:00,014 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-04 22:05:00,015 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-04 22:05:00,016 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-04 22:05:00,016 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-04 22:05:00,019 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-04 22:05:00,021 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-04 22:05:00,023 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-04 22:05:00,025 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-04 22:05:00,026 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-04 22:05:00,027 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-04 22:05:00,035 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-04 22:05:00,038 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-04 22:05:00,039 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-04 22:05:00,040 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-04 22:05:00,041 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-04 22:05:00,053 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-04 22:05:00,053 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-04 22:05:00,054 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-04 22:05:00,055 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-04 22:05:00,057 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-04 22:05:00,066 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-04 22:05:00,066 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-04 22:05:00,067 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-04 22:05:00,068 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-04 22:05:00,069 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-04 22:05:00,070 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-04 22:05:00,070 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-04 22:05:00,072 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-04 22:05:00,072 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-04 22:05:00,073 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-04 22:05:00,074 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-04 22:05:00,074 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-04 22:05:00,075 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-09-04 22:05:00,093 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-04 22:05:00,093 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-04 22:05:00,096 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-04 22:05:00,096 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-04 22:05:00,096 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-04 22:05:00,096 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-04 22:05:00,097 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-04 22:05:00,097 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-04 22:05:00,097 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-04 22:05:00,097 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-04 22:05:00,098 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-04 22:05:00,098 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-04 22:05:00,099 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-04 22:05:00,099 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-04 22:05:00,099 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-04 22:05:00,100 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-09-04 22:05:00,100 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-04 22:05:00,100 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-04 22:05:00,100 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 22:05:00,100 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-04 22:05:00,101 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-09-04 22:05:00,101 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-04 22:05:00,101 INFO L138 SettingsManager]: * Use separate solver for trace checks=false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-09-04 22:05:00,530 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-04 22:05:00,547 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-04 22:05:00,552 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-04 22:05:00,553 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-04 22:05:00,554 INFO L275 PluginConnector]: CDTParser initialized [2020-09-04 22:05:00,555 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-properties/splice-1.i [2020-09-04 22:05:00,635 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3c36bf499/26f406f338ea4ebd9a25e4a46a132b30/FLAG5cbd0a2c6 [2020-09-04 22:05:01,274 INFO L306 CDTParser]: Found 1 translation units. [2020-09-04 22:05:01,275 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/list-properties/splice-1.i [2020-09-04 22:05:01,289 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3c36bf499/26f406f338ea4ebd9a25e4a46a132b30/FLAG5cbd0a2c6 [2020-09-04 22:05:01,539 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3c36bf499/26f406f338ea4ebd9a25e4a46a132b30 [2020-09-04 22:05:01,562 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-04 22:05:01,570 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-04 22:05:01,586 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-04 22:05:01,587 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-04 22:05:01,591 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-04 22:05:01,592 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 10:05:01" (1/1) ... [2020-09-04 22:05:01,596 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a477604 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 10:05:01, skipping insertion in model container [2020-09-04 22:05:01,596 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 10:05:01" (1/1) ... [2020-09-04 22:05:01,605 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-04 22:05:01,665 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-04 22:05:02,120 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 22:05:02,139 INFO L203 MainTranslator]: Completed pre-run [2020-09-04 22:05:02,219 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 22:05:02,283 INFO L208 MainTranslator]: Completed translation [2020-09-04 22:05:02,284 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 10:05:02 WrapperNode [2020-09-04 22:05:02,284 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-04 22:05:02,285 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-04 22:05:02,285 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-04 22:05:02,285 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-04 22:05:02,304 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 10:05:02" (1/1) ... [2020-09-04 22:05:02,304 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 10:05:02" (1/1) ... [2020-09-04 22:05:02,322 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 10:05:02" (1/1) ... [2020-09-04 22:05:02,323 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 10:05:02" (1/1) ... [2020-09-04 22:05:02,341 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 10:05:02" (1/1) ... [2020-09-04 22:05:02,348 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 10:05:02" (1/1) ... [2020-09-04 22:05:02,352 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 10:05:02" (1/1) ... [2020-09-04 22:05:02,359 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-04 22:05:02,360 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-04 22:05:02,360 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-04 22:05:02,360 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-04 22:05:02,361 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 10:05:02" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-09-04 22:05:02,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-04 22:05:02,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-04 22:05:02,445 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-09-04 22:05:02,445 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-09-04 22:05:02,445 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2020-09-04 22:05:02,445 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2020-09-04 22:05:02,445 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2020-09-04 22:05:02,445 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2020-09-04 22:05:02,446 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-04 22:05:02,446 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-04 22:05:02,446 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-04 22:05:02,446 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-09-04 22:05:02,446 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-09-04 22:05:02,447 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-09-04 22:05:02,447 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-09-04 22:05:02,447 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-09-04 22:05:02,447 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-09-04 22:05:02,447 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-09-04 22:05:02,448 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-09-04 22:05:02,448 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-09-04 22:05:02,448 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-09-04 22:05:02,449 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-09-04 22:05:02,449 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-09-04 22:05:02,449 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-09-04 22:05:02,449 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-09-04 22:05:02,449 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-09-04 22:05:02,449 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-09-04 22:05:02,450 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-09-04 22:05:02,450 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-09-04 22:05:02,450 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2020-09-04 22:05:02,450 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2020-09-04 22:05:02,450 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2020-09-04 22:05:02,451 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-09-04 22:05:02,451 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-09-04 22:05:02,451 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-09-04 22:05:02,451 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-09-04 22:05:02,451 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-09-04 22:05:02,451 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-09-04 22:05:02,452 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-09-04 22:05:02,452 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-09-04 22:05:02,452 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-09-04 22:05:02,452 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-09-04 22:05:02,452 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-09-04 22:05:02,452 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-09-04 22:05:02,452 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-09-04 22:05:02,453 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-09-04 22:05:02,453 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-09-04 22:05:02,453 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-09-04 22:05:02,453 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-09-04 22:05:02,453 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-09-04 22:05:02,454 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-09-04 22:05:02,454 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-09-04 22:05:02,454 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-09-04 22:05:02,454 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-09-04 22:05:02,454 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-09-04 22:05:02,454 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-09-04 22:05:02,454 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-09-04 22:05:02,455 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-09-04 22:05:02,455 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-09-04 22:05:02,455 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-09-04 22:05:02,455 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-09-04 22:05:02,455 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-09-04 22:05:02,455 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-09-04 22:05:02,456 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-09-04 22:05:02,456 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-09-04 22:05:02,456 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-09-04 22:05:02,456 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-04 22:05:02,456 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-04 22:05:02,456 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-09-04 22:05:02,457 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-04 22:05:02,457 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-09-04 22:05:02,457 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-09-04 22:05:02,457 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-09-04 22:05:02,457 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-09-04 22:05:02,457 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-04 22:05:02,458 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-09-04 22:05:02,458 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-09-04 22:05:02,458 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-09-04 22:05:02,458 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-04 22:05:02,458 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-09-04 22:05:02,459 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-09-04 22:05:02,459 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-09-04 22:05:02,459 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-09-04 22:05:02,459 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-09-04 22:05:02,459 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-09-04 22:05:02,459 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-09-04 22:05:02,460 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-09-04 22:05:02,460 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-09-04 22:05:02,460 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-09-04 22:05:02,460 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-09-04 22:05:02,460 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-09-04 22:05:02,460 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-09-04 22:05:02,461 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-09-04 22:05:02,461 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-09-04 22:05:02,461 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-09-04 22:05:02,461 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-09-04 22:05:02,461 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-09-04 22:05:02,461 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-09-04 22:05:02,461 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-09-04 22:05:02,462 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-09-04 22:05:02,462 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-09-04 22:05:02,462 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-09-04 22:05:02,462 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-09-04 22:05:02,462 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-09-04 22:05:02,462 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-09-04 22:05:02,463 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-09-04 22:05:02,463 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-09-04 22:05:02,463 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-09-04 22:05:02,463 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-09-04 22:05:02,463 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-09-04 22:05:02,463 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-09-04 22:05:02,463 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-09-04 22:05:02,464 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-09-04 22:05:02,464 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-09-04 22:05:02,464 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-09-04 22:05:02,464 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-09-04 22:05:02,464 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-09-04 22:05:02,464 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-09-04 22:05:02,464 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2020-09-04 22:05:02,465 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-04 22:05:02,465 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-04 22:05:02,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-04 22:05:02,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-04 22:05:02,465 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-04 22:05:02,465 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-04 22:05:02,466 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-04 22:05:02,466 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-04 22:05:02,466 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-04 22:05:02,854 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2020-09-04 22:05:03,176 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-04 22:05:03,176 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-09-04 22:05:03,181 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 10:05:03 BoogieIcfgContainer [2020-09-04 22:05:03,182 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-04 22:05:03,183 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-04 22:05:03,183 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-04 22:05:03,187 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-04 22:05:03,188 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.09 10:05:01" (1/3) ... [2020-09-04 22:05:03,189 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1427702e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 10:05:03, skipping insertion in model container [2020-09-04 22:05:03,189 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 10:05:02" (2/3) ... [2020-09-04 22:05:03,189 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1427702e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 10:05:03, skipping insertion in model container [2020-09-04 22:05:03,190 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 10:05:03" (3/3) ... [2020-09-04 22:05:03,192 INFO L109 eAbstractionObserver]: Analyzing ICFG splice-1.i [2020-09-04 22:05:03,204 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-04 22:05:03,215 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-04 22:05:03,237 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-04 22:05:03,261 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-04 22:05:03,261 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-04 22:05:03,261 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-04 22:05:03,262 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-04 22:05:03,262 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-04 22:05:03,262 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-04 22:05:03,262 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-04 22:05:03,262 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-04 22:05:03,282 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states. [2020-09-04 22:05:03,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-09-04 22:05:03,297 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 22:05:03,298 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] [2020-09-04 22:05:03,299 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 22:05:03,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 22:05:03,306 INFO L82 PathProgramCache]: Analyzing trace with hash 570656219, now seen corresponding path program 1 times [2020-09-04 22:05:03,319 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 22:05:03,320 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [466701226] [2020-09-04 22:05:03,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 22:05:03,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 22:05:03,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 22:05:03,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 22:05:03,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 22:05:03,566 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [466701226] [2020-09-04 22:05:03,569 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 22:05:03,569 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-04 22:05:03,571 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544798114] [2020-09-04 22:05:03,577 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-04 22:05:03,578 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 22:05:03,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-04 22:05:03,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-04 22:05:03,601 INFO L87 Difference]: Start difference. First operand 88 states. Second operand 3 states. [2020-09-04 22:05:03,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 22:05:03,857 INFO L93 Difference]: Finished difference Result 138 states and 161 transitions. [2020-09-04 22:05:03,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-04 22:05:03,860 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 33 [2020-09-04 22:05:03,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 22:05:03,873 INFO L225 Difference]: With dead ends: 138 [2020-09-04 22:05:03,873 INFO L226 Difference]: Without dead ends: 76 [2020-09-04 22:05:03,878 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-04 22:05:03,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2020-09-04 22:05:03,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2020-09-04 22:05:03,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2020-09-04 22:05:03,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 82 transitions. [2020-09-04 22:05:03,941 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 82 transitions. Word has length 33 [2020-09-04 22:05:03,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 22:05:03,941 INFO L479 AbstractCegarLoop]: Abstraction has 76 states and 82 transitions. [2020-09-04 22:05:03,941 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-04 22:05:03,942 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 82 transitions. [2020-09-04 22:05:03,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-09-04 22:05:03,944 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 22:05:03,944 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] [2020-09-04 22:05:03,944 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-04 22:05:03,945 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 22:05:03,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 22:05:03,945 INFO L82 PathProgramCache]: Analyzing trace with hash -1726039966, now seen corresponding path program 1 times [2020-09-04 22:05:03,945 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 22:05:03,946 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1442602536] [2020-09-04 22:05:03,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 22:05:03,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 22:05:04,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 22:05:04,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 22:05:04,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 22:05:04,073 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1442602536] [2020-09-04 22:05:04,073 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 22:05:04,074 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-04 22:05:04,074 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139171400] [2020-09-04 22:05:04,076 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-04 22:05:04,077 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 22:05:04,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-04 22:05:04,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-04 22:05:04,078 INFO L87 Difference]: Start difference. First operand 76 states and 82 transitions. Second operand 6 states. [2020-09-04 22:05:04,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 22:05:04,328 INFO L93 Difference]: Finished difference Result 142 states and 155 transitions. [2020-09-04 22:05:04,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-04 22:05:04,329 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 37 [2020-09-04 22:05:04,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 22:05:04,331 INFO L225 Difference]: With dead ends: 142 [2020-09-04 22:05:04,331 INFO L226 Difference]: Without dead ends: 98 [2020-09-04 22:05:04,333 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 [2020-09-04 22:05:04,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2020-09-04 22:05:04,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 78. [2020-09-04 22:05:04,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-09-04 22:05:04,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 84 transitions. [2020-09-04 22:05:04,346 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 84 transitions. Word has length 37 [2020-09-04 22:05:04,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 22:05:04,347 INFO L479 AbstractCegarLoop]: Abstraction has 78 states and 84 transitions. [2020-09-04 22:05:04,347 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-04 22:05:04,347 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 84 transitions. [2020-09-04 22:05:04,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-09-04 22:05:04,349 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 22:05:04,349 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 22:05:04,349 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-04 22:05:04,350 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 22:05:04,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 22:05:04,350 INFO L82 PathProgramCache]: Analyzing trace with hash 294194033, now seen corresponding path program 1 times [2020-09-04 22:05:04,350 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 22:05:04,351 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1183292553] [2020-09-04 22:05:04,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 22:05:04,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 22:05:04,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 22:05:04,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 22:05:04,509 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-04 22:05:04,510 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1183292553] [2020-09-04 22:05:04,510 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 22:05:04,510 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-04 22:05:04,510 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016787037] [2020-09-04 22:05:04,511 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-04 22:05:04,511 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 22:05:04,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-04 22:05:04,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-04 22:05:04,512 INFO L87 Difference]: Start difference. First operand 78 states and 84 transitions. Second operand 5 states. [2020-09-04 22:05:04,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 22:05:04,714 INFO L93 Difference]: Finished difference Result 124 states and 135 transitions. [2020-09-04 22:05:04,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-04 22:05:04,715 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 50 [2020-09-04 22:05:04,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 22:05:04,716 INFO L225 Difference]: With dead ends: 124 [2020-09-04 22:05:04,717 INFO L226 Difference]: Without dead ends: 105 [2020-09-04 22:05:04,717 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 [2020-09-04 22:05:04,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2020-09-04 22:05:04,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 92. [2020-09-04 22:05:04,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2020-09-04 22:05:04,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 100 transitions. [2020-09-04 22:05:04,731 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 100 transitions. Word has length 50 [2020-09-04 22:05:04,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 22:05:04,732 INFO L479 AbstractCegarLoop]: Abstraction has 92 states and 100 transitions. [2020-09-04 22:05:04,732 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-04 22:05:04,732 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 100 transitions. [2020-09-04 22:05:04,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-09-04 22:05:04,734 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 22:05:04,734 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 22:05:04,735 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-04 22:05:04,735 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 22:05:04,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 22:05:04,737 INFO L82 PathProgramCache]: Analyzing trace with hash -2102515392, now seen corresponding path program 1 times [2020-09-04 22:05:04,738 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 22:05:04,738 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1768383282] [2020-09-04 22:05:04,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 22:05:04,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 22:05:04,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 22:05:04,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 22:05:04,909 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-04 22:05:04,909 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1768383282] [2020-09-04 22:05:04,910 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 22:05:04,910 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-04 22:05:04,911 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540153041] [2020-09-04 22:05:04,911 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-04 22:05:04,912 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 22:05:04,912 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-04 22:05:04,912 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-04 22:05:04,913 INFO L87 Difference]: Start difference. First operand 92 states and 100 transitions. Second operand 5 states. [2020-09-04 22:05:05,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 22:05:05,135 INFO L93 Difference]: Finished difference Result 142 states and 155 transitions. [2020-09-04 22:05:05,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-04 22:05:05,135 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 52 [2020-09-04 22:05:05,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 22:05:05,137 INFO L225 Difference]: With dead ends: 142 [2020-09-04 22:05:05,137 INFO L226 Difference]: Without dead ends: 127 [2020-09-04 22:05:05,138 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 [2020-09-04 22:05:05,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2020-09-04 22:05:05,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 120. [2020-09-04 22:05:05,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2020-09-04 22:05:05,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 132 transitions. [2020-09-04 22:05:05,153 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 132 transitions. Word has length 52 [2020-09-04 22:05:05,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 22:05:05,154 INFO L479 AbstractCegarLoop]: Abstraction has 120 states and 132 transitions. [2020-09-04 22:05:05,154 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-04 22:05:05,154 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 132 transitions. [2020-09-04 22:05:05,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-09-04 22:05:05,156 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 22:05:05,156 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 22:05:05,156 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-04 22:05:05,156 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 22:05:05,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 22:05:05,157 INFO L82 PathProgramCache]: Analyzing trace with hash -1840938300, now seen corresponding path program 1 times [2020-09-04 22:05:05,157 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 22:05:05,157 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2040573380] [2020-09-04 22:05:05,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 22:05:05,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-04 22:05:05,194 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-04 22:05:05,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-04 22:05:05,244 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-04 22:05:05,305 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-04 22:05:05,306 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-04 22:05:05,306 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-04 22:05:05,384 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.09 10:05:05 BoogieIcfgContainer [2020-09-04 22:05:05,384 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-04 22:05:05,388 INFO L168 Benchmark]: Toolchain (without parser) took 3821.28 ms. Allocated memory was 137.9 MB in the beginning and 250.1 MB in the end (delta: 112.2 MB). Free memory was 99.7 MB in the beginning and 199.7 MB in the end (delta: -100.0 MB). Peak memory consumption was 12.2 MB. Max. memory is 7.1 GB. [2020-09-04 22:05:05,389 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 137.9 MB. Free memory was 119.2 MB in the beginning and 119.0 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-04 22:05:05,390 INFO L168 Benchmark]: CACSL2BoogieTranslator took 698.40 ms. Allocated memory was 137.9 MB in the beginning and 202.4 MB in the end (delta: 64.5 MB). Free memory was 99.5 MB in the beginning and 168.6 MB in the end (delta: -69.1 MB). Peak memory consumption was 25.1 MB. Max. memory is 7.1 GB. [2020-09-04 22:05:05,391 INFO L168 Benchmark]: Boogie Preprocessor took 74.17 ms. Allocated memory is still 202.4 MB. Free memory was 168.6 MB in the beginning and 165.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2020-09-04 22:05:05,392 INFO L168 Benchmark]: RCFGBuilder took 822.33 ms. Allocated memory is still 202.4 MB. Free memory was 165.9 MB in the beginning and 115.2 MB in the end (delta: 50.7 MB). Peak memory consumption was 50.7 MB. Max. memory is 7.1 GB. [2020-09-04 22:05:05,392 INFO L168 Benchmark]: TraceAbstraction took 2201.43 ms. Allocated memory was 202.4 MB in the beginning and 250.1 MB in the end (delta: 47.7 MB). Free memory was 114.5 MB in the beginning and 199.7 MB in the end (delta: -85.2 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-04 22:05:05,397 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 137.9 MB. Free memory was 119.2 MB in the beginning and 119.0 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 698.40 ms. Allocated memory was 137.9 MB in the beginning and 202.4 MB in the end (delta: 64.5 MB). Free memory was 99.5 MB in the beginning and 168.6 MB in the end (delta: -69.1 MB). Peak memory consumption was 25.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 74.17 ms. Allocated memory is still 202.4 MB. Free memory was 168.6 MB in the beginning and 165.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 822.33 ms. Allocated memory is still 202.4 MB. Free memory was 165.9 MB in the beginning and 115.2 MB in the end (delta: 50.7 MB). Peak memory consumption was 50.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2201.43 ms. Allocated memory was 202.4 MB in the beginning and 250.1 MB in the end (delta: 47.7 MB). Free memory was 114.5 MB in the beginning and 199.7 MB in the end (delta: -85.2 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 573]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L521] int flag = 1; VAL [flag=1] [L522] List a = (List) malloc(sizeof(struct node)); VAL [a={-1:0}, flag=1, malloc(sizeof(struct node))={-1:0}] [L523] COND FALSE !(a == 0) VAL [a={-1:0}, flag=1, malloc(sizeof(struct node))={-1:0}] [L524] List t; VAL [a={-1:0}, flag=1, malloc(sizeof(struct node))={-1:0}] [L525] List l1; VAL [a={-1:0}, flag=1, malloc(sizeof(struct node))={-1:0}] [L526] List l2; VAL [a={-1:0}, flag=1, malloc(sizeof(struct node))={-1:0}] [L527] List b; VAL [a={-1:0}, flag=1, malloc(sizeof(struct node))={-1:0}] [L528] List u; VAL [a={-1:0}, flag=1, malloc(sizeof(struct node))={-1:0}] [L529] List p = a; VAL [a={-1:0}, flag=1, malloc(sizeof(struct node))={-1:0}, p={-1:0}] [L530] COND TRUE __VERIFIER_nondet_int() VAL [__VERIFIER_nondet_int()=1, a={-1:0}, flag=1, malloc(sizeof(struct node))={-1:0}, p={-1:0}] [L531] COND TRUE \read(flag) VAL [a={-1:0}, flag=1, malloc(sizeof(struct node))={-1:0}, p={-1:0}] [L532] p->h = 1 VAL [a={-1:0}, flag=1, malloc(sizeof(struct node))={-1:0}, p={-1:0}] [L533] flag = 0 VAL [a={-1:0}, flag=0, malloc(sizeof(struct node))={-1:0}, p={-1:0}] [L538] t = (List) malloc(sizeof(struct node)) VAL [a={-1:0}, flag=0, malloc(sizeof(struct node))={-2:0}, malloc(sizeof(struct node))={-1:0}, p={-1:0}, t={-2:0}] [L539] COND FALSE !(t == 0) VAL [a={-1:0}, flag=0, malloc(sizeof(struct node))={-2:0}, malloc(sizeof(struct node))={-1:0}, p={-1:0}, t={-2:0}] [L540] p->n = t VAL [a={-1:0}, flag=0, malloc(sizeof(struct node))={-2:0}, malloc(sizeof(struct node))={-1:0}, p={-1:0}, t={-2:0}] [L541] EXPR p->n VAL [a={-1:0}, flag=0, malloc(sizeof(struct node))={-2:0}, malloc(sizeof(struct node))={-1:0}, p={-1:0}, p->n={-2:0}, t={-2:0}] [L541] p = p->n VAL [a={-1:0}, flag=0, malloc(sizeof(struct node))={-2:0}, malloc(sizeof(struct node))={-1:0}, p={-2:0}, p->n={-2:0}, t={-2:0}] [L530] COND FALSE !(__VERIFIER_nondet_int()) VAL [__VERIFIER_nondet_int()=0, a={-1:0}, flag=0, malloc(sizeof(struct node))={-2:0}, malloc(sizeof(struct node))={-1:0}, p={-2:0}, t={-2:0}] [L543] p->h = 3 VAL [a={-1:0}, flag=0, malloc(sizeof(struct node))={-2:0}, malloc(sizeof(struct node))={-1:0}, p={-2:0}, t={-2:0}] [L544] EXPR a->h VAL [a={-1:0}, a->h=1, flag=0, malloc(sizeof(struct node))={-2:0}, malloc(sizeof(struct node))={-1:0}, p={-2:0}, t={-2:0}] [L544] COND FALSE !(a->h == 3) VAL [a={-1:0}, a->h=1, flag=0, malloc(sizeof(struct node))={-2:0}, malloc(sizeof(struct node))={-1:0}, p={-2:0}, t={-2:0}] [L545] flag = 1 VAL [a={-1:0}, flag=1, malloc(sizeof(struct node))={-2:0}, malloc(sizeof(struct node))={-1:0}, p={-2:0}, t={-2:0}] [L546] l1 = 0 VAL [a={-1:0}, flag=1, l1={0:0}, malloc(sizeof(struct node))={-2:0}, malloc(sizeof(struct node))={-1:0}, p={-2:0}, t={-2:0}] [L547] l2 = 0 VAL [a={-1:0}, flag=1, l1={0:0}, l2={0:0}, malloc(sizeof(struct node))={-2:0}, malloc(sizeof(struct node))={-1:0}, p={-2:0}, t={-2:0}] [L548] p = a VAL [a={-1:0}, flag=1, l1={0:0}, l2={0:0}, malloc(sizeof(struct node))={-2:0}, malloc(sizeof(struct node))={-1:0}, p={-1:0}, t={-2:0}] [L549] EXPR p->h VAL [a={-1:0}, flag=1, l1={0:0}, l2={0:0}, malloc(sizeof(struct node))={-2:0}, malloc(sizeof(struct node))={-1:0}, p={-1:0}, p->h=1, t={-2:0}] [L549] COND TRUE p->h != 3 VAL [a={-1:0}, flag=1, l1={0:0}, l2={0:0}, malloc(sizeof(struct node))={-2:0}, malloc(sizeof(struct node))={-1:0}, p={-1:0}, p->h=1, t={-2:0}] [L550] t = p VAL [a={-1:0}, flag=1, l1={0:0}, l2={0:0}, malloc(sizeof(struct node))={-2:0}, malloc(sizeof(struct node))={-1:0}, p={-1:0}, t={-1:0}] [L551] EXPR p->n VAL [a={-1:0}, flag=1, l1={0:0}, l2={0:0}, malloc(sizeof(struct node))={-2:0}, malloc(sizeof(struct node))={-1:0}, p={-1:0}, p->n={-2:0}, t={-1:0}] [L551] p = p->n VAL [a={-1:0}, flag=1, l1={0:0}, l2={0:0}, malloc(sizeof(struct node))={-2:0}, malloc(sizeof(struct node))={-1:0}, p={-2:0}, p->n={-2:0}, t={-1:0}] [L552] COND TRUE \read(flag) VAL [a={-1:0}, flag=1, l1={0:0}, l2={0:0}, malloc(sizeof(struct node))={-2:0}, malloc(sizeof(struct node))={-1:0}, p={-2:0}, t={-1:0}] [L553] t->n = l1 VAL [a={-1:0}, flag=1, l1={0:0}, l2={0:0}, malloc(sizeof(struct node))={-2:0}, malloc(sizeof(struct node))={-1:0}, p={-2:0}, t={-1:0}] [L554] l1 = t VAL [a={-1:0}, flag=1, l1={-1:0}, l2={0:0}, malloc(sizeof(struct node))={-2:0}, malloc(sizeof(struct node))={-1:0}, p={-2:0}, t={-1:0}] [L555] flag = 0 VAL [a={-1:0}, flag=0, l1={-1:0}, l2={0:0}, malloc(sizeof(struct node))={-2:0}, malloc(sizeof(struct node))={-1:0}, p={-2:0}, t={-1:0}] [L549] EXPR p->h VAL [a={-1:0}, flag=0, l1={-1:0}, l2={0:0}, malloc(sizeof(struct node))={-2:0}, malloc(sizeof(struct node))={-1:0}, p={-2:0}, p->h=3, t={-1:0}] [L549] COND FALSE !(p->h != 3) VAL [a={-1:0}, flag=0, l1={-1:0}, l2={0:0}, malloc(sizeof(struct node))={-2:0}, malloc(sizeof(struct node))={-1:0}, p={-2:0}, p->h=3, t={-1:0}] [L562] p = l1 VAL [a={-1:0}, flag=0, l1={-1:0}, l2={0:0}, malloc(sizeof(struct node))={-2:0}, malloc(sizeof(struct node))={-1:0}, p={-1:0}, t={-1:0}] [L563] COND TRUE p != 0 VAL [a={-1:0}, flag=0, l1={-1:0}, l2={0:0}, malloc(sizeof(struct node))={-2:0}, malloc(sizeof(struct node))={-1:0}, p={-1:0}, t={-1:0}] [L564] EXPR p->h VAL [a={-1:0}, flag=0, l1={-1:0}, l2={0:0}, malloc(sizeof(struct node))={-2:0}, malloc(sizeof(struct node))={-1:0}, p={-1:0}, p->h=1, t={-1:0}] [L564] COND TRUE p->h != 2 VAL [a={-1:0}, flag=0, l1={-1:0}, l2={0:0}, malloc(sizeof(struct node))={-2:0}, malloc(sizeof(struct node))={-1:0}, p={-1:0}, p->h=1, t={-1:0}] [L573] __VERIFIER_error() VAL [a={-1:0}, flag=0, l1={-1:0}, l2={0:0}, malloc(sizeof(struct node))={-2:0}, malloc(sizeof(struct node))={-1:0}, p={-1:0}, t={-1:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 111 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.0s, OverallIterations: 5, TraceHistogramMax: 2, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 324 SDtfs, 77 SDslu, 459 SDs, 0 SdLazy, 450 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=120occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 40 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 233 NumberOfCodeBlocks, 233 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 168 ConstructedInterpolants, 0 QuantifiedInterpolants, 14492 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 4/4 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...