/usr/bin/java -ea -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-ext-properties/list-ext.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-18 05:15:15,059 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-18 05:15:15,063 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-18 05:15:15,082 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-18 05:15:15,083 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-18 05:15:15,085 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-18 05:15:15,087 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-18 05:15:15,097 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-18 05:15:15,100 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-18 05:15:15,103 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-18 05:15:15,105 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-18 05:15:15,108 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-18 05:15:15,108 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-18 05:15:15,110 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-18 05:15:15,112 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-18 05:15:15,113 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-18 05:15:15,115 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-18 05:15:15,116 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-18 05:15:15,117 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-18 05:15:15,122 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-18 05:15:15,128 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-18 05:15:15,133 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-18 05:15:15,134 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-18 05:15:15,135 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-18 05:15:15,137 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-18 05:15:15,137 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-18 05:15:15,138 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-18 05:15:15,140 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-18 05:15:15,141 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-18 05:15:15,143 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-18 05:15:15,143 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-18 05:15:15,146 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-18 05:15:15,147 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-18 05:15:15,148 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-18 05:15:15,150 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-18 05:15:15,150 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-18 05:15:15,151 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-18 05:15:15,151 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-18 05:15:15,151 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-18 05:15:15,152 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-18 05:15:15,154 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-18 05:15:15,154 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-18 05:15:15,182 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-18 05:15:15,182 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-18 05:15:15,184 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-18 05:15:15,184 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-18 05:15:15,184 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-18 05:15:15,184 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-18 05:15:15,184 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-18 05:15:15,185 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-18 05:15:15,185 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-18 05:15:15,185 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-18 05:15:15,185 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-18 05:15:15,185 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-18 05:15:15,185 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-18 05:15:15,186 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-18 05:15:15,186 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-18 05:15:15,186 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-18 05:15:15,186 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-18 05:15:15,186 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-18 05:15:15,187 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-18 05:15:15,187 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-18 05:15:15,187 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-18 05:15:15,187 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-18 05:15:15,187 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 [2020-07-18 05:15:15,451 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-18 05:15:15,471 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-18 05:15:15,474 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-18 05:15:15,476 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-18 05:15:15,476 INFO L275 PluginConnector]: CDTParser initialized [2020-07-18 05:15:15,477 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-ext-properties/list-ext.i [2020-07-18 05:15:15,549 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/628b6d2c4/8a7cfb38392c4f40b81fead5539867f2/FLAG182d7ea92 [2020-07-18 05:15:16,067 INFO L306 CDTParser]: Found 1 translation units. [2020-07-18 05:15:16,068 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/list-ext-properties/list-ext.i [2020-07-18 05:15:16,087 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/628b6d2c4/8a7cfb38392c4f40b81fead5539867f2/FLAG182d7ea92 [2020-07-18 05:15:16,386 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/628b6d2c4/8a7cfb38392c4f40b81fead5539867f2 [2020-07-18 05:15:16,401 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-18 05:15:16,404 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-18 05:15:16,409 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-18 05:15:16,410 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-18 05:15:16,413 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-18 05:15:16,415 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.07 05:15:16" (1/1) ... [2020-07-18 05:15:16,418 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c858163 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 05:15:16, skipping insertion in model container [2020-07-18 05:15:16,419 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.07 05:15:16" (1/1) ... [2020-07-18 05:15:16,430 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-18 05:15:16,485 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-18 05:15:16,919 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-18 05:15:16,938 INFO L203 MainTranslator]: Completed pre-run [2020-07-18 05:15:17,028 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-18 05:15:17,096 INFO L208 MainTranslator]: Completed translation [2020-07-18 05:15:17,097 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 05:15:17 WrapperNode [2020-07-18 05:15:17,097 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-18 05:15:17,098 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-18 05:15:17,098 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-18 05:15:17,099 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-18 05:15:17,113 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 05:15:17" (1/1) ... [2020-07-18 05:15:17,113 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 05:15:17" (1/1) ... [2020-07-18 05:15:17,138 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 05:15:17" (1/1) ... [2020-07-18 05:15:17,139 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 05:15:17" (1/1) ... [2020-07-18 05:15:17,164 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 05:15:17" (1/1) ... [2020-07-18 05:15:17,172 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 05:15:17" (1/1) ... [2020-07-18 05:15:17,175 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 05:15:17" (1/1) ... [2020-07-18 05:15:17,183 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-18 05:15:17,183 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-18 05:15:17,183 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-18 05:15:17,184 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-18 05:15:17,184 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 05:15:17" (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 [2020-07-18 05:15:17,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-18 05:15:17,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-18 05:15:17,243 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-07-18 05:15:17,243 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-07-18 05:15:17,243 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2020-07-18 05:15:17,244 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2020-07-18 05:15:17,244 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2020-07-18 05:15:17,244 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2020-07-18 05:15:17,244 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-18 05:15:17,244 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-18 05:15:17,245 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-18 05:15:17,245 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-07-18 05:15:17,245 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-07-18 05:15:17,245 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-07-18 05:15:17,245 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-07-18 05:15:17,245 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-07-18 05:15:17,246 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-07-18 05:15:17,246 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-07-18 05:15:17,246 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-07-18 05:15:17,246 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-07-18 05:15:17,246 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-07-18 05:15:17,246 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-07-18 05:15:17,247 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-07-18 05:15:17,247 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-07-18 05:15:17,247 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-07-18 05:15:17,247 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-07-18 05:15:17,247 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-07-18 05:15:17,250 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-07-18 05:15:17,250 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-07-18 05:15:17,250 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2020-07-18 05:15:17,251 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2020-07-18 05:15:17,251 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2020-07-18 05:15:17,251 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-07-18 05:15:17,251 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-07-18 05:15:17,251 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-07-18 05:15:17,251 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-07-18 05:15:17,252 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-07-18 05:15:17,252 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-07-18 05:15:17,252 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-07-18 05:15:17,252 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-07-18 05:15:17,252 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-07-18 05:15:17,252 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-07-18 05:15:17,253 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-07-18 05:15:17,253 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-07-18 05:15:17,253 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-07-18 05:15:17,253 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-07-18 05:15:17,253 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-07-18 05:15:17,253 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-07-18 05:15:17,254 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-07-18 05:15:17,254 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-07-18 05:15:17,254 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-07-18 05:15:17,254 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-07-18 05:15:17,254 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-07-18 05:15:17,254 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-07-18 05:15:17,254 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-07-18 05:15:17,254 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-07-18 05:15:17,255 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-07-18 05:15:17,255 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-07-18 05:15:17,255 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-07-18 05:15:17,255 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-07-18 05:15:17,255 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-07-18 05:15:17,255 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-07-18 05:15:17,255 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-07-18 05:15:17,255 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-07-18 05:15:17,255 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-07-18 05:15:17,255 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-07-18 05:15:17,256 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-18 05:15:17,256 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-07-18 05:15:17,256 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-07-18 05:15:17,256 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-18 05:15:17,256 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-07-18 05:15:17,256 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-07-18 05:15:17,256 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-07-18 05:15:17,256 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-07-18 05:15:17,256 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-18 05:15:17,257 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-07-18 05:15:17,257 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-07-18 05:15:17,257 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-07-18 05:15:17,257 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-18 05:15:17,257 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-07-18 05:15:17,257 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-07-18 05:15:17,257 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-07-18 05:15:17,258 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-07-18 05:15:17,258 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-07-18 05:15:17,258 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-07-18 05:15:17,258 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-07-18 05:15:17,258 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-07-18 05:15:17,258 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-07-18 05:15:17,259 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-07-18 05:15:17,259 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-07-18 05:15:17,259 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-07-18 05:15:17,259 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-07-18 05:15:17,259 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-07-18 05:15:17,259 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-07-18 05:15:17,260 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-07-18 05:15:17,260 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-07-18 05:15:17,260 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-07-18 05:15:17,260 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-07-18 05:15:17,260 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-07-18 05:15:17,260 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-07-18 05:15:17,260 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-07-18 05:15:17,261 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-07-18 05:15:17,261 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-07-18 05:15:17,261 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-07-18 05:15:17,261 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-07-18 05:15:17,261 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-07-18 05:15:17,261 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-07-18 05:15:17,261 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-07-18 05:15:17,262 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-07-18 05:15:17,262 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-07-18 05:15:17,262 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-07-18 05:15:17,262 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-07-18 05:15:17,262 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-07-18 05:15:17,262 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-07-18 05:15:17,262 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-07-18 05:15:17,263 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-07-18 05:15:17,263 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-07-18 05:15:17,263 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-07-18 05:15:17,263 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2020-07-18 05:15:17,263 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-18 05:15:17,263 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-18 05:15:17,263 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-18 05:15:17,264 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-18 05:15:17,264 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-18 05:15:17,264 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-18 05:15:17,264 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-18 05:15:17,264 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-18 05:15:17,264 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-18 05:15:17,650 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2020-07-18 05:15:18,175 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-18 05:15:18,175 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-18 05:15:18,182 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.07 05:15:18 BoogieIcfgContainer [2020-07-18 05:15:18,182 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-18 05:15:18,185 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-18 05:15:18,185 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-18 05:15:18,189 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-18 05:15:18,189 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.07 05:15:16" (1/3) ... [2020-07-18 05:15:18,190 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41b03a9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.07 05:15:18, skipping insertion in model container [2020-07-18 05:15:18,191 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 05:15:17" (2/3) ... [2020-07-18 05:15:18,191 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41b03a9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.07 05:15:18, skipping insertion in model container [2020-07-18 05:15:18,192 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.07 05:15:18" (3/3) ... [2020-07-18 05:15:18,195 INFO L109 eAbstractionObserver]: Analyzing ICFG list-ext.i [2020-07-18 05:15:18,207 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-18 05:15:18,218 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-18 05:15:18,250 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-18 05:15:18,273 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-18 05:15:18,274 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-18 05:15:18,274 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-07-18 05:15:18,274 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-18 05:15:18,274 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-18 05:15:18,275 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-18 05:15:18,275 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-18 05:15:18,275 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-18 05:15:18,293 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states. [2020-07-18 05:15:18,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-07-18 05:15:18,306 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 05:15:18,307 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] [2020-07-18 05:15:18,307 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 05:15:18,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 05:15:18,314 INFO L82 PathProgramCache]: Analyzing trace with hash 450995297, now seen corresponding path program 1 times [2020-07-18 05:15:18,323 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 05:15:18,324 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1379336213] [2020-07-18 05:15:18,324 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 05:15:18,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 05:15:18,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 05:15:18,532 INFO L280 TraceCheckUtils]: 0: Hoare triple {116#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {109#true} is VALID [2020-07-18 05:15:18,532 INFO L280 TraceCheckUtils]: 1: Hoare triple {109#true} #valid := #valid[0 := 0]; {109#true} is VALID [2020-07-18 05:15:18,533 INFO L280 TraceCheckUtils]: 2: Hoare triple {109#true} assume 0 < #StackHeapBarrier; {109#true} is VALID [2020-07-18 05:15:18,533 INFO L280 TraceCheckUtils]: 3: Hoare triple {109#true} assume true; {109#true} is VALID [2020-07-18 05:15:18,534 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {109#true} {109#true} #214#return; {109#true} is VALID [2020-07-18 05:15:18,538 INFO L263 TraceCheckUtils]: 0: Hoare triple {109#true} call ULTIMATE.init(); {116#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-18 05:15:18,538 INFO L280 TraceCheckUtils]: 1: Hoare triple {116#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {109#true} is VALID [2020-07-18 05:15:18,538 INFO L280 TraceCheckUtils]: 2: Hoare triple {109#true} #valid := #valid[0 := 0]; {109#true} is VALID [2020-07-18 05:15:18,539 INFO L280 TraceCheckUtils]: 3: Hoare triple {109#true} assume 0 < #StackHeapBarrier; {109#true} is VALID [2020-07-18 05:15:18,539 INFO L280 TraceCheckUtils]: 4: Hoare triple {109#true} assume true; {109#true} is VALID [2020-07-18 05:15:18,540 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {109#true} {109#true} #214#return; {109#true} is VALID [2020-07-18 05:15:18,540 INFO L263 TraceCheckUtils]: 6: Hoare triple {109#true} call #t~ret22 := main(); {109#true} is VALID [2020-07-18 05:15:18,540 INFO L280 TraceCheckUtils]: 7: Hoare triple {109#true} ~i~0 := 0; {109#true} is VALID [2020-07-18 05:15:18,541 INFO L280 TraceCheckUtils]: 8: Hoare triple {109#true} ~y~0 := 0; {109#true} is VALID [2020-07-18 05:15:18,541 INFO L280 TraceCheckUtils]: 9: Hoare triple {109#true} SUMMARY for call #t~malloc2.base, #t~malloc2.offset := #Ultimate.allocOnHeap(8); srcloc: L523 {109#true} is VALID [2020-07-18 05:15:18,542 INFO L280 TraceCheckUtils]: 10: Hoare triple {109#true} ~a~0.base, ~a~0.offset := #t~malloc2.base, #t~malloc2.offset; {109#true} is VALID [2020-07-18 05:15:18,542 INFO L280 TraceCheckUtils]: 11: Hoare triple {109#true} assume !(~a~0.base == 0 && ~a~0.offset == 0); {109#true} is VALID [2020-07-18 05:15:18,543 INFO L280 TraceCheckUtils]: 12: Hoare triple {109#true} havoc ~t~0.base, ~t~0.offset; {109#true} is VALID [2020-07-18 05:15:18,543 INFO L280 TraceCheckUtils]: 13: Hoare triple {109#true} ~p~0.base, ~p~0.offset := ~a~0.base, ~a~0.offset; {109#true} is VALID [2020-07-18 05:15:18,545 INFO L280 TraceCheckUtils]: 14: Hoare triple {109#true} assume !true; {110#false} is VALID [2020-07-18 05:15:18,545 INFO L280 TraceCheckUtils]: 15: Hoare triple {110#false} assume !true; {110#false} is VALID [2020-07-18 05:15:18,546 INFO L280 TraceCheckUtils]: 16: Hoare triple {110#false} SUMMARY for call write~int(3, ~p~0.base, ~p~0.offset, 4); srcloc: L535-11 {110#false} is VALID [2020-07-18 05:15:18,546 INFO L280 TraceCheckUtils]: 17: Hoare triple {110#false} SUMMARY for call write~$Pointer$(0, 0, ~p~0.base, 4 + ~p~0.offset, 4); srcloc: L543 {110#false} is VALID [2020-07-18 05:15:18,546 INFO L280 TraceCheckUtils]: 18: Hoare triple {110#false} ~i~0 := 0; {110#false} is VALID [2020-07-18 05:15:18,547 INFO L280 TraceCheckUtils]: 19: Hoare triple {110#false} ~y~0 := 0; {110#false} is VALID [2020-07-18 05:15:18,547 INFO L280 TraceCheckUtils]: 20: Hoare triple {110#false} ~p~0.base, ~p~0.offset := ~a~0.base, ~a~0.offset; {110#false} is VALID [2020-07-18 05:15:18,547 INFO L280 TraceCheckUtils]: 21: Hoare triple {110#false} assume !true; {110#false} is VALID [2020-07-18 05:15:18,548 INFO L280 TraceCheckUtils]: 22: Hoare triple {110#false} assume !true; {110#false} is VALID [2020-07-18 05:15:18,548 INFO L280 TraceCheckUtils]: 23: Hoare triple {110#false} SUMMARY for call #t~mem19 := read~int(~p~0.base, ~p~0.offset, 4); srcloc: L552-5 {110#false} is VALID [2020-07-18 05:15:18,548 INFO L280 TraceCheckUtils]: 24: Hoare triple {110#false} assume 3 != #t~mem19 || ~i~0 + ~y~0 < 20; {110#false} is VALID [2020-07-18 05:15:18,549 INFO L280 TraceCheckUtils]: 25: Hoare triple {110#false} havoc #t~mem19; {110#false} is VALID [2020-07-18 05:15:18,549 INFO L280 TraceCheckUtils]: 26: Hoare triple {110#false} assume !false; {110#false} is VALID [2020-07-18 05:15:18,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-18 05:15:18,553 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1379336213] [2020-07-18 05:15:18,555 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-18 05:15:18,556 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-18 05:15:18,557 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104507354] [2020-07-18 05:15:18,564 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 27 [2020-07-18 05:15:18,567 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-18 05:15:18,573 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-18 05:15:18,624 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 27 edges. 27 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 05:15:18,625 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-18 05:15:18,625 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-18 05:15:18,636 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-18 05:15:18,637 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-18 05:15:18,639 INFO L87 Difference]: Start difference. First operand 106 states. Second operand 3 states. [2020-07-18 05:15:19,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 05:15:19,169 INFO L93 Difference]: Finished difference Result 176 states and 201 transitions. [2020-07-18 05:15:19,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-18 05:15:19,170 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 27 [2020-07-18 05:15:19,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-18 05:15:19,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-18 05:15:19,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 201 transitions. [2020-07-18 05:15:19,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-18 05:15:19,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 201 transitions. [2020-07-18 05:15:19,197 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 201 transitions. [2020-07-18 05:15:19,537 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 201 edges. 201 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 05:15:19,566 INFO L225 Difference]: With dead ends: 176 [2020-07-18 05:15:19,566 INFO L226 Difference]: Without dead ends: 84 [2020-07-18 05:15:19,570 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 [2020-07-18 05:15:19,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2020-07-18 05:15:19,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2020-07-18 05:15:19,669 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-18 05:15:19,670 INFO L82 GeneralOperation]: Start isEquivalent. First operand 84 states. Second operand 84 states. [2020-07-18 05:15:19,671 INFO L74 IsIncluded]: Start isIncluded. First operand 84 states. Second operand 84 states. [2020-07-18 05:15:19,671 INFO L87 Difference]: Start difference. First operand 84 states. Second operand 84 states. [2020-07-18 05:15:19,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 05:15:19,678 INFO L93 Difference]: Finished difference Result 84 states and 89 transitions. [2020-07-18 05:15:19,679 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 89 transitions. [2020-07-18 05:15:19,680 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 05:15:19,680 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 05:15:19,680 INFO L74 IsIncluded]: Start isIncluded. First operand 84 states. Second operand 84 states. [2020-07-18 05:15:19,681 INFO L87 Difference]: Start difference. First operand 84 states. Second operand 84 states. [2020-07-18 05:15:19,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 05:15:19,687 INFO L93 Difference]: Finished difference Result 84 states and 89 transitions. [2020-07-18 05:15:19,688 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 89 transitions. [2020-07-18 05:15:19,689 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 05:15:19,689 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 05:15:19,689 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-18 05:15:19,689 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-18 05:15:19,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2020-07-18 05:15:19,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 89 transitions. [2020-07-18 05:15:19,697 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 89 transitions. Word has length 27 [2020-07-18 05:15:19,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-18 05:15:19,697 INFO L479 AbstractCegarLoop]: Abstraction has 84 states and 89 transitions. [2020-07-18 05:15:19,697 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-18 05:15:19,698 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 84 states and 89 transitions. [2020-07-18 05:15:19,796 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 89 edges. 89 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 05:15:19,797 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 89 transitions. [2020-07-18 05:15:19,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-07-18 05:15:19,799 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 05:15:19,799 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] [2020-07-18 05:15:19,800 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-18 05:15:19,800 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 05:15:19,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 05:15:19,800 INFO L82 PathProgramCache]: Analyzing trace with hash 797319425, now seen corresponding path program 1 times [2020-07-18 05:15:19,801 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 05:15:19,801 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2038561174] [2020-07-18 05:15:19,801 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 05:15:19,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 05:15:19,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 05:15:19,973 INFO L280 TraceCheckUtils]: 0: Hoare triple {816#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {807#true} is VALID [2020-07-18 05:15:19,973 INFO L280 TraceCheckUtils]: 1: Hoare triple {807#true} #valid := #valid[0 := 0]; {807#true} is VALID [2020-07-18 05:15:19,974 INFO L280 TraceCheckUtils]: 2: Hoare triple {807#true} assume 0 < #StackHeapBarrier; {807#true} is VALID [2020-07-18 05:15:19,974 INFO L280 TraceCheckUtils]: 3: Hoare triple {807#true} assume true; {807#true} is VALID [2020-07-18 05:15:19,974 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {807#true} {807#true} #214#return; {807#true} is VALID [2020-07-18 05:15:19,980 INFO L263 TraceCheckUtils]: 0: Hoare triple {807#true} call ULTIMATE.init(); {816#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-18 05:15:19,981 INFO L280 TraceCheckUtils]: 1: Hoare triple {816#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {807#true} is VALID [2020-07-18 05:15:19,981 INFO L280 TraceCheckUtils]: 2: Hoare triple {807#true} #valid := #valid[0 := 0]; {807#true} is VALID [2020-07-18 05:15:19,982 INFO L280 TraceCheckUtils]: 3: Hoare triple {807#true} assume 0 < #StackHeapBarrier; {807#true} is VALID [2020-07-18 05:15:19,982 INFO L280 TraceCheckUtils]: 4: Hoare triple {807#true} assume true; {807#true} is VALID [2020-07-18 05:15:19,983 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {807#true} {807#true} #214#return; {807#true} is VALID [2020-07-18 05:15:19,983 INFO L263 TraceCheckUtils]: 6: Hoare triple {807#true} call #t~ret22 := main(); {807#true} is VALID [2020-07-18 05:15:19,990 INFO L280 TraceCheckUtils]: 7: Hoare triple {807#true} ~i~0 := 0; {814#(= 0 main_~i~0)} is VALID [2020-07-18 05:15:19,990 INFO L280 TraceCheckUtils]: 8: Hoare triple {814#(= 0 main_~i~0)} ~y~0 := 0; {814#(= 0 main_~i~0)} is VALID [2020-07-18 05:15:19,991 INFO L280 TraceCheckUtils]: 9: Hoare triple {814#(= 0 main_~i~0)} SUMMARY for call #t~malloc2.base, #t~malloc2.offset := #Ultimate.allocOnHeap(8); srcloc: L523 {814#(= 0 main_~i~0)} is VALID [2020-07-18 05:15:19,993 INFO L280 TraceCheckUtils]: 10: Hoare triple {814#(= 0 main_~i~0)} ~a~0.base, ~a~0.offset := #t~malloc2.base, #t~malloc2.offset; {814#(= 0 main_~i~0)} is VALID [2020-07-18 05:15:19,994 INFO L280 TraceCheckUtils]: 11: Hoare triple {814#(= 0 main_~i~0)} assume !(~a~0.base == 0 && ~a~0.offset == 0); {814#(= 0 main_~i~0)} is VALID [2020-07-18 05:15:19,995 INFO L280 TraceCheckUtils]: 12: Hoare triple {814#(= 0 main_~i~0)} havoc ~t~0.base, ~t~0.offset; {814#(= 0 main_~i~0)} is VALID [2020-07-18 05:15:19,996 INFO L280 TraceCheckUtils]: 13: Hoare triple {814#(= 0 main_~i~0)} ~p~0.base, ~p~0.offset := ~a~0.base, ~a~0.offset; {814#(= 0 main_~i~0)} is VALID [2020-07-18 05:15:20,001 INFO L280 TraceCheckUtils]: 14: Hoare triple {814#(= 0 main_~i~0)} #t~short4 := ~i~0 < 10; {815#|main_#t~short4|} is VALID [2020-07-18 05:15:20,002 INFO L280 TraceCheckUtils]: 15: Hoare triple {815#|main_#t~short4|} assume !#t~short4; {808#false} is VALID [2020-07-18 05:15:20,002 INFO L280 TraceCheckUtils]: 16: Hoare triple {808#false} assume !#t~short4; {808#false} is VALID [2020-07-18 05:15:20,003 INFO L280 TraceCheckUtils]: 17: Hoare triple {808#false} havoc #t~short4; {808#false} is VALID [2020-07-18 05:15:20,003 INFO L280 TraceCheckUtils]: 18: Hoare triple {808#false} havoc #t~nondet3; {808#false} is VALID [2020-07-18 05:15:20,003 INFO L280 TraceCheckUtils]: 19: Hoare triple {808#false} #t~short9 := ~y~0 < 10; {808#false} is VALID [2020-07-18 05:15:20,004 INFO L280 TraceCheckUtils]: 20: Hoare triple {808#false} assume !#t~short9; {808#false} is VALID [2020-07-18 05:15:20,004 INFO L280 TraceCheckUtils]: 21: Hoare triple {808#false} assume !#t~short9; {808#false} is VALID [2020-07-18 05:15:20,004 INFO L280 TraceCheckUtils]: 22: Hoare triple {808#false} havoc #t~short9; {808#false} is VALID [2020-07-18 05:15:20,004 INFO L280 TraceCheckUtils]: 23: Hoare triple {808#false} havoc #t~nondet8; {808#false} is VALID [2020-07-18 05:15:20,005 INFO L280 TraceCheckUtils]: 24: Hoare triple {808#false} SUMMARY for call write~int(3, ~p~0.base, ~p~0.offset, 4); srcloc: L535-11 {808#false} is VALID [2020-07-18 05:15:20,005 INFO L280 TraceCheckUtils]: 25: Hoare triple {808#false} SUMMARY for call write~$Pointer$(0, 0, ~p~0.base, 4 + ~p~0.offset, 4); srcloc: L543 {808#false} is VALID [2020-07-18 05:15:20,005 INFO L280 TraceCheckUtils]: 26: Hoare triple {808#false} ~i~0 := 0; {808#false} is VALID [2020-07-18 05:15:20,006 INFO L280 TraceCheckUtils]: 27: Hoare triple {808#false} ~y~0 := 0; {808#false} is VALID [2020-07-18 05:15:20,006 INFO L280 TraceCheckUtils]: 28: Hoare triple {808#false} ~p~0.base, ~p~0.offset := ~a~0.base, ~a~0.offset; {808#false} is VALID [2020-07-18 05:15:20,006 INFO L280 TraceCheckUtils]: 29: Hoare triple {808#false} SUMMARY for call #t~mem13 := read~int(~p~0.base, ~p~0.offset, 4); srcloc: L548-5 {808#false} is VALID [2020-07-18 05:15:20,009 INFO L280 TraceCheckUtils]: 30: Hoare triple {808#false} assume !(1 == #t~mem13); {808#false} is VALID [2020-07-18 05:15:20,009 INFO L280 TraceCheckUtils]: 31: Hoare triple {808#false} havoc #t~mem13; {808#false} is VALID [2020-07-18 05:15:20,009 INFO L280 TraceCheckUtils]: 32: Hoare triple {808#false} SUMMARY for call #t~mem16 := read~int(~p~0.base, ~p~0.offset, 4); srcloc: L552-4 {808#false} is VALID [2020-07-18 05:15:20,010 INFO L280 TraceCheckUtils]: 33: Hoare triple {808#false} assume !(2 == #t~mem16); {808#false} is VALID [2020-07-18 05:15:20,010 INFO L280 TraceCheckUtils]: 34: Hoare triple {808#false} havoc #t~mem16; {808#false} is VALID [2020-07-18 05:15:20,010 INFO L280 TraceCheckUtils]: 35: Hoare triple {808#false} SUMMARY for call #t~mem19 := read~int(~p~0.base, ~p~0.offset, 4); srcloc: L552-5 {808#false} is VALID [2020-07-18 05:15:20,011 INFO L280 TraceCheckUtils]: 36: Hoare triple {808#false} assume 3 != #t~mem19 || ~i~0 + ~y~0 < 20; {808#false} is VALID [2020-07-18 05:15:20,011 INFO L280 TraceCheckUtils]: 37: Hoare triple {808#false} havoc #t~mem19; {808#false} is VALID [2020-07-18 05:15:20,011 INFO L280 TraceCheckUtils]: 38: Hoare triple {808#false} assume !false; {808#false} is VALID [2020-07-18 05:15:20,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-18 05:15:20,016 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2038561174] [2020-07-18 05:15:20,016 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-18 05:15:20,016 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-18 05:15:20,016 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644645259] [2020-07-18 05:15:20,019 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 39 [2020-07-18 05:15:20,020 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-18 05:15:20,020 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-18 05:15:20,063 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 39 edges. 39 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 05:15:20,063 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-18 05:15:20,064 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-18 05:15:20,064 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-18 05:15:20,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-18 05:15:20,064 INFO L87 Difference]: Start difference. First operand 84 states and 89 transitions. Second operand 5 states. [2020-07-18 05:15:20,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 05:15:20,683 INFO L93 Difference]: Finished difference Result 209 states and 224 transitions. [2020-07-18 05:15:20,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-18 05:15:20,683 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 39 [2020-07-18 05:15:20,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-18 05:15:20,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-18 05:15:20,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 224 transitions. [2020-07-18 05:15:20,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-18 05:15:20,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 224 transitions. [2020-07-18 05:15:20,694 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states and 224 transitions. [2020-07-18 05:15:20,938 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 224 edges. 224 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 05:15:20,944 INFO L225 Difference]: With dead ends: 209 [2020-07-18 05:15:20,944 INFO L226 Difference]: Without dead ends: 139 [2020-07-18 05:15:20,946 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-07-18 05:15:20,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2020-07-18 05:15:21,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 86. [2020-07-18 05:15:21,006 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-18 05:15:21,006 INFO L82 GeneralOperation]: Start isEquivalent. First operand 139 states. Second operand 86 states. [2020-07-18 05:15:21,006 INFO L74 IsIncluded]: Start isIncluded. First operand 139 states. Second operand 86 states. [2020-07-18 05:15:21,006 INFO L87 Difference]: Start difference. First operand 139 states. Second operand 86 states. [2020-07-18 05:15:21,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 05:15:21,014 INFO L93 Difference]: Finished difference Result 139 states and 148 transitions. [2020-07-18 05:15:21,014 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 148 transitions. [2020-07-18 05:15:21,018 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 05:15:21,018 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 05:15:21,018 INFO L74 IsIncluded]: Start isIncluded. First operand 86 states. Second operand 139 states. [2020-07-18 05:15:21,018 INFO L87 Difference]: Start difference. First operand 86 states. Second operand 139 states. [2020-07-18 05:15:21,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 05:15:21,026 INFO L93 Difference]: Finished difference Result 139 states and 148 transitions. [2020-07-18 05:15:21,026 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 148 transitions. [2020-07-18 05:15:21,027 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 05:15:21,027 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 05:15:21,028 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-18 05:15:21,028 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-18 05:15:21,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2020-07-18 05:15:21,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 91 transitions. [2020-07-18 05:15:21,032 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 91 transitions. Word has length 39 [2020-07-18 05:15:21,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-18 05:15:21,032 INFO L479 AbstractCegarLoop]: Abstraction has 86 states and 91 transitions. [2020-07-18 05:15:21,033 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-18 05:15:21,033 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 86 states and 91 transitions. [2020-07-18 05:15:21,132 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 91 edges. 91 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 05:15:21,133 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 91 transitions. [2020-07-18 05:15:21,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-07-18 05:15:21,134 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 05:15:21,134 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] [2020-07-18 05:15:21,135 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-18 05:15:21,135 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 05:15:21,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 05:15:21,135 INFO L82 PathProgramCache]: Analyzing trace with hash 1111510308, now seen corresponding path program 1 times [2020-07-18 05:15:21,136 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 05:15:21,136 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1792378652] [2020-07-18 05:15:21,136 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 05:15:21,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 05:15:21,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 05:15:21,221 INFO L280 TraceCheckUtils]: 0: Hoare triple {1700#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {1691#true} is VALID [2020-07-18 05:15:21,221 INFO L280 TraceCheckUtils]: 1: Hoare triple {1691#true} #valid := #valid[0 := 0]; {1691#true} is VALID [2020-07-18 05:15:21,222 INFO L280 TraceCheckUtils]: 2: Hoare triple {1691#true} assume 0 < #StackHeapBarrier; {1691#true} is VALID [2020-07-18 05:15:21,222 INFO L280 TraceCheckUtils]: 3: Hoare triple {1691#true} assume true; {1691#true} is VALID [2020-07-18 05:15:21,222 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {1691#true} {1691#true} #214#return; {1691#true} is VALID [2020-07-18 05:15:21,223 INFO L263 TraceCheckUtils]: 0: Hoare triple {1691#true} call ULTIMATE.init(); {1700#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-18 05:15:21,223 INFO L280 TraceCheckUtils]: 1: Hoare triple {1700#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {1691#true} is VALID [2020-07-18 05:15:21,224 INFO L280 TraceCheckUtils]: 2: Hoare triple {1691#true} #valid := #valid[0 := 0]; {1691#true} is VALID [2020-07-18 05:15:21,224 INFO L280 TraceCheckUtils]: 3: Hoare triple {1691#true} assume 0 < #StackHeapBarrier; {1691#true} is VALID [2020-07-18 05:15:21,224 INFO L280 TraceCheckUtils]: 4: Hoare triple {1691#true} assume true; {1691#true} is VALID [2020-07-18 05:15:21,225 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {1691#true} {1691#true} #214#return; {1691#true} is VALID [2020-07-18 05:15:21,225 INFO L263 TraceCheckUtils]: 6: Hoare triple {1691#true} call #t~ret22 := main(); {1691#true} is VALID [2020-07-18 05:15:21,225 INFO L280 TraceCheckUtils]: 7: Hoare triple {1691#true} ~i~0 := 0; {1691#true} is VALID [2020-07-18 05:15:21,226 INFO L280 TraceCheckUtils]: 8: Hoare triple {1691#true} ~y~0 := 0; {1698#(= 0 main_~y~0)} is VALID [2020-07-18 05:15:21,227 INFO L280 TraceCheckUtils]: 9: Hoare triple {1698#(= 0 main_~y~0)} SUMMARY for call #t~malloc2.base, #t~malloc2.offset := #Ultimate.allocOnHeap(8); srcloc: L523 {1698#(= 0 main_~y~0)} is VALID [2020-07-18 05:15:21,227 INFO L280 TraceCheckUtils]: 10: Hoare triple {1698#(= 0 main_~y~0)} ~a~0.base, ~a~0.offset := #t~malloc2.base, #t~malloc2.offset; {1698#(= 0 main_~y~0)} is VALID [2020-07-18 05:15:21,228 INFO L280 TraceCheckUtils]: 11: Hoare triple {1698#(= 0 main_~y~0)} assume !(~a~0.base == 0 && ~a~0.offset == 0); {1698#(= 0 main_~y~0)} is VALID [2020-07-18 05:15:21,229 INFO L280 TraceCheckUtils]: 12: Hoare triple {1698#(= 0 main_~y~0)} havoc ~t~0.base, ~t~0.offset; {1698#(= 0 main_~y~0)} is VALID [2020-07-18 05:15:21,229 INFO L280 TraceCheckUtils]: 13: Hoare triple {1698#(= 0 main_~y~0)} ~p~0.base, ~p~0.offset := ~a~0.base, ~a~0.offset; {1698#(= 0 main_~y~0)} is VALID [2020-07-18 05:15:21,230 INFO L280 TraceCheckUtils]: 14: Hoare triple {1698#(= 0 main_~y~0)} #t~short4 := ~i~0 < 10; {1698#(= 0 main_~y~0)} is VALID [2020-07-18 05:15:21,230 INFO L280 TraceCheckUtils]: 15: Hoare triple {1698#(= 0 main_~y~0)} assume #t~short4; {1698#(= 0 main_~y~0)} is VALID [2020-07-18 05:15:21,231 INFO L280 TraceCheckUtils]: 16: Hoare triple {1698#(= 0 main_~y~0)} assume -2147483648 <= #t~nondet3 && #t~nondet3 <= 2147483647; {1698#(= 0 main_~y~0)} is VALID [2020-07-18 05:15:21,232 INFO L280 TraceCheckUtils]: 17: Hoare triple {1698#(= 0 main_~y~0)} #t~short4 := 0 != #t~nondet3; {1698#(= 0 main_~y~0)} is VALID [2020-07-18 05:15:21,232 INFO L280 TraceCheckUtils]: 18: Hoare triple {1698#(= 0 main_~y~0)} assume !#t~short4; {1698#(= 0 main_~y~0)} is VALID [2020-07-18 05:15:21,233 INFO L280 TraceCheckUtils]: 19: Hoare triple {1698#(= 0 main_~y~0)} havoc #t~short4; {1698#(= 0 main_~y~0)} is VALID [2020-07-18 05:15:21,234 INFO L280 TraceCheckUtils]: 20: Hoare triple {1698#(= 0 main_~y~0)} havoc #t~nondet3; {1698#(= 0 main_~y~0)} is VALID [2020-07-18 05:15:21,234 INFO L280 TraceCheckUtils]: 21: Hoare triple {1698#(= 0 main_~y~0)} #t~short9 := ~y~0 < 10; {1699#|main_#t~short9|} is VALID [2020-07-18 05:15:21,235 INFO L280 TraceCheckUtils]: 22: Hoare triple {1699#|main_#t~short9|} assume !#t~short9; {1692#false} is VALID [2020-07-18 05:15:21,236 INFO L280 TraceCheckUtils]: 23: Hoare triple {1692#false} assume !#t~short9; {1692#false} is VALID [2020-07-18 05:15:21,236 INFO L280 TraceCheckUtils]: 24: Hoare triple {1692#false} havoc #t~short9; {1692#false} is VALID [2020-07-18 05:15:21,236 INFO L280 TraceCheckUtils]: 25: Hoare triple {1692#false} havoc #t~nondet8; {1692#false} is VALID [2020-07-18 05:15:21,237 INFO L280 TraceCheckUtils]: 26: Hoare triple {1692#false} SUMMARY for call write~int(3, ~p~0.base, ~p~0.offset, 4); srcloc: L535-11 {1692#false} is VALID [2020-07-18 05:15:21,237 INFO L280 TraceCheckUtils]: 27: Hoare triple {1692#false} SUMMARY for call write~$Pointer$(0, 0, ~p~0.base, 4 + ~p~0.offset, 4); srcloc: L543 {1692#false} is VALID [2020-07-18 05:15:21,237 INFO L280 TraceCheckUtils]: 28: Hoare triple {1692#false} ~i~0 := 0; {1692#false} is VALID [2020-07-18 05:15:21,237 INFO L280 TraceCheckUtils]: 29: Hoare triple {1692#false} ~y~0 := 0; {1692#false} is VALID [2020-07-18 05:15:21,238 INFO L280 TraceCheckUtils]: 30: Hoare triple {1692#false} ~p~0.base, ~p~0.offset := ~a~0.base, ~a~0.offset; {1692#false} is VALID [2020-07-18 05:15:21,238 INFO L280 TraceCheckUtils]: 31: Hoare triple {1692#false} SUMMARY for call #t~mem13 := read~int(~p~0.base, ~p~0.offset, 4); srcloc: L548-5 {1692#false} is VALID [2020-07-18 05:15:21,238 INFO L280 TraceCheckUtils]: 32: Hoare triple {1692#false} assume !(1 == #t~mem13); {1692#false} is VALID [2020-07-18 05:15:21,238 INFO L280 TraceCheckUtils]: 33: Hoare triple {1692#false} havoc #t~mem13; {1692#false} is VALID [2020-07-18 05:15:21,238 INFO L280 TraceCheckUtils]: 34: Hoare triple {1692#false} SUMMARY for call #t~mem16 := read~int(~p~0.base, ~p~0.offset, 4); srcloc: L552-4 {1692#false} is VALID [2020-07-18 05:15:21,238 INFO L280 TraceCheckUtils]: 35: Hoare triple {1692#false} assume !(2 == #t~mem16); {1692#false} is VALID [2020-07-18 05:15:21,239 INFO L280 TraceCheckUtils]: 36: Hoare triple {1692#false} havoc #t~mem16; {1692#false} is VALID [2020-07-18 05:15:21,239 INFO L280 TraceCheckUtils]: 37: Hoare triple {1692#false} SUMMARY for call #t~mem19 := read~int(~p~0.base, ~p~0.offset, 4); srcloc: L552-5 {1692#false} is VALID [2020-07-18 05:15:21,239 INFO L280 TraceCheckUtils]: 38: Hoare triple {1692#false} assume 3 != #t~mem19 || ~i~0 + ~y~0 < 20; {1692#false} is VALID [2020-07-18 05:15:21,239 INFO L280 TraceCheckUtils]: 39: Hoare triple {1692#false} havoc #t~mem19; {1692#false} is VALID [2020-07-18 05:15:21,239 INFO L280 TraceCheckUtils]: 40: Hoare triple {1692#false} assume !false; {1692#false} is VALID [2020-07-18 05:15:21,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-18 05:15:21,242 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1792378652] [2020-07-18 05:15:21,243 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-18 05:15:21,243 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-18 05:15:21,243 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281931119] [2020-07-18 05:15:21,243 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 41 [2020-07-18 05:15:21,244 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-18 05:15:21,244 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-18 05:15:21,288 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 41 edges. 41 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 05:15:21,288 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-18 05:15:21,288 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-18 05:15:21,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-18 05:15:21,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-18 05:15:21,289 INFO L87 Difference]: Start difference. First operand 86 states and 91 transitions. Second operand 5 states. [2020-07-18 05:15:21,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 05:15:21,839 INFO L93 Difference]: Finished difference Result 162 states and 172 transitions. [2020-07-18 05:15:21,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-18 05:15:21,839 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 41 [2020-07-18 05:15:21,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-18 05:15:21,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-18 05:15:21,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 170 transitions. [2020-07-18 05:15:21,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-18 05:15:21,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 170 transitions. [2020-07-18 05:15:21,847 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states and 170 transitions. [2020-07-18 05:15:22,015 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 170 edges. 170 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 05:15:22,019 INFO L225 Difference]: With dead ends: 162 [2020-07-18 05:15:22,019 INFO L226 Difference]: Without dead ends: 112 [2020-07-18 05:15:22,020 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-07-18 05:15:22,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2020-07-18 05:15:22,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 88. [2020-07-18 05:15:22,108 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-18 05:15:22,108 INFO L82 GeneralOperation]: Start isEquivalent. First operand 112 states. Second operand 88 states. [2020-07-18 05:15:22,108 INFO L74 IsIncluded]: Start isIncluded. First operand 112 states. Second operand 88 states. [2020-07-18 05:15:22,108 INFO L87 Difference]: Start difference. First operand 112 states. Second operand 88 states. [2020-07-18 05:15:22,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 05:15:22,113 INFO L93 Difference]: Finished difference Result 112 states and 118 transitions. [2020-07-18 05:15:22,113 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 118 transitions. [2020-07-18 05:15:22,114 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 05:15:22,114 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 05:15:22,114 INFO L74 IsIncluded]: Start isIncluded. First operand 88 states. Second operand 112 states. [2020-07-18 05:15:22,114 INFO L87 Difference]: Start difference. First operand 88 states. Second operand 112 states. [2020-07-18 05:15:22,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 05:15:22,119 INFO L93 Difference]: Finished difference Result 112 states and 118 transitions. [2020-07-18 05:15:22,119 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 118 transitions. [2020-07-18 05:15:22,120 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 05:15:22,120 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 05:15:22,120 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-18 05:15:22,120 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-18 05:15:22,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2020-07-18 05:15:22,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 93 transitions. [2020-07-18 05:15:22,124 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 93 transitions. Word has length 41 [2020-07-18 05:15:22,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-18 05:15:22,124 INFO L479 AbstractCegarLoop]: Abstraction has 88 states and 93 transitions. [2020-07-18 05:15:22,124 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-18 05:15:22,124 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 88 states and 93 transitions. [2020-07-18 05:15:22,221 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 93 edges. 93 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 05:15:22,222 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 93 transitions. [2020-07-18 05:15:22,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-07-18 05:15:22,223 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 05:15:22,224 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] [2020-07-18 05:15:22,224 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-18 05:15:22,225 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 05:15:22,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 05:15:22,225 INFO L82 PathProgramCache]: Analyzing trace with hash 1931735873, now seen corresponding path program 1 times [2020-07-18 05:15:22,225 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 05:15:22,226 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [226104645] [2020-07-18 05:15:22,226 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 05:15:22,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-18 05:15:22,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-18 05:15:22,317 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-18 05:15:22,317 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-18 05:15:22,317 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-18 05:15:22,370 WARN L170 areAnnotationChecker]: ULTIMATE.initENTRY has no Hoare annotation [2020-07-18 05:15:22,370 WARN L170 areAnnotationChecker]: myexitENTRY has no Hoare annotation [2020-07-18 05:15:22,370 WARN L170 areAnnotationChecker]: __bswap_32ENTRY has no Hoare annotation [2020-07-18 05:15:22,370 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-18 05:15:22,371 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-18 05:15:22,371 WARN L170 areAnnotationChecker]: __bswap_64ENTRY has no Hoare annotation [2020-07-18 05:15:22,371 WARN L170 areAnnotationChecker]: __uint16_identityENTRY has no Hoare annotation [2020-07-18 05:15:22,371 WARN L170 areAnnotationChecker]: __uint64_identityENTRY has no Hoare annotation [2020-07-18 05:15:22,371 WARN L170 areAnnotationChecker]: mainENTRY has no Hoare annotation [2020-07-18 05:15:22,371 WARN L170 areAnnotationChecker]: __uint32_identityENTRY has no Hoare annotation [2020-07-18 05:15:22,371 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-18 05:15:22,372 WARN L170 areAnnotationChecker]: L514 has no Hoare annotation [2020-07-18 05:15:22,372 WARN L170 areAnnotationChecker]: L164 has no Hoare annotation [2020-07-18 05:15:22,372 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-18 05:15:22,372 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-18 05:15:22,372 WARN L170 areAnnotationChecker]: L169 has no Hoare annotation [2020-07-18 05:15:22,372 WARN L170 areAnnotationChecker]: L174 has no Hoare annotation [2020-07-18 05:15:22,372 WARN L170 areAnnotationChecker]: L184 has no Hoare annotation [2020-07-18 05:15:22,372 WARN L170 areAnnotationChecker]: L522 has no Hoare annotation [2020-07-18 05:15:22,372 WARN L170 areAnnotationChecker]: L179 has no Hoare annotation [2020-07-18 05:15:22,372 WARN L170 areAnnotationChecker]: L-1-1 has no Hoare annotation [2020-07-18 05:15:22,372 WARN L170 areAnnotationChecker]: L164-1 has no Hoare annotation [2020-07-18 05:15:22,373 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-18 05:15:22,373 WARN L170 areAnnotationChecker]: L169-1 has no Hoare annotation [2020-07-18 05:15:22,373 WARN L170 areAnnotationChecker]: __uint16_identityFINAL has no Hoare annotation [2020-07-18 05:15:22,373 WARN L170 areAnnotationChecker]: __uint64_identityFINAL has no Hoare annotation [2020-07-18 05:15:22,373 WARN L170 areAnnotationChecker]: L523 has no Hoare annotation [2020-07-18 05:15:22,373 WARN L170 areAnnotationChecker]: __uint32_identityFINAL has no Hoare annotation [2020-07-18 05:15:22,373 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2020-07-18 05:15:22,373 WARN L170 areAnnotationChecker]: __bswap_32FINAL has no Hoare annotation [2020-07-18 05:15:22,373 WARN L170 areAnnotationChecker]: __bswap_64FINAL has no Hoare annotation [2020-07-18 05:15:22,373 WARN L170 areAnnotationChecker]: L523-1 has no Hoare annotation [2020-07-18 05:15:22,373 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2020-07-18 05:15:22,373 WARN L170 areAnnotationChecker]: L524 has no Hoare annotation [2020-07-18 05:15:22,374 WARN L170 areAnnotationChecker]: L524 has no Hoare annotation [2020-07-18 05:15:22,374 WARN L170 areAnnotationChecker]: L524-1 has no Hoare annotation [2020-07-18 05:15:22,374 WARN L170 areAnnotationChecker]: L524-1 has no Hoare annotation [2020-07-18 05:15:22,374 WARN L170 areAnnotationChecker]: L524-3 has no Hoare annotation [2020-07-18 05:15:22,374 WARN L170 areAnnotationChecker]: L526 has no Hoare annotation [2020-07-18 05:15:22,374 WARN L170 areAnnotationChecker]: L527-11 has no Hoare annotation [2020-07-18 05:15:22,377 WARN L170 areAnnotationChecker]: L527-11 has no Hoare annotation [2020-07-18 05:15:22,377 WARN L170 areAnnotationChecker]: L535-10 has no Hoare annotation [2020-07-18 05:15:22,378 WARN L170 areAnnotationChecker]: L535-10 has no Hoare annotation [2020-07-18 05:15:22,378 WARN L170 areAnnotationChecker]: L527-1 has no Hoare annotation [2020-07-18 05:15:22,378 WARN L170 areAnnotationChecker]: L527-1 has no Hoare annotation [2020-07-18 05:15:22,378 WARN L170 areAnnotationChecker]: L535-11 has no Hoare annotation [2020-07-18 05:15:22,378 WARN L170 areAnnotationChecker]: L535 has no Hoare annotation [2020-07-18 05:15:22,378 WARN L170 areAnnotationChecker]: L535 has no Hoare annotation [2020-07-18 05:15:22,378 WARN L170 areAnnotationChecker]: L527-2 has no Hoare annotation [2020-07-18 05:15:22,378 WARN L170 areAnnotationChecker]: L527-5 has no Hoare annotation [2020-07-18 05:15:22,378 WARN L170 areAnnotationChecker]: L527-5 has no Hoare annotation [2020-07-18 05:15:22,378 WARN L170 areAnnotationChecker]: L543 has no Hoare annotation [2020-07-18 05:15:22,379 WARN L170 areAnnotationChecker]: L535-1 has no Hoare annotation [2020-07-18 05:15:22,379 WARN L170 areAnnotationChecker]: L535-4 has no Hoare annotation [2020-07-18 05:15:22,379 WARN L170 areAnnotationChecker]: L535-4 has no Hoare annotation [2020-07-18 05:15:22,379 WARN L170 areAnnotationChecker]: L527-3 has no Hoare annotation [2020-07-18 05:15:22,379 WARN L170 areAnnotationChecker]: L527-6 has no Hoare annotation [2020-07-18 05:15:22,379 WARN L170 areAnnotationChecker]: L527-9 has no Hoare annotation [2020-07-18 05:15:22,379 WARN L170 areAnnotationChecker]: L544 has no Hoare annotation [2020-07-18 05:15:22,379 WARN L170 areAnnotationChecker]: L535-2 has no Hoare annotation [2020-07-18 05:15:22,380 WARN L170 areAnnotationChecker]: L535-5 has no Hoare annotation [2020-07-18 05:15:22,380 WARN L170 areAnnotationChecker]: L535-8 has no Hoare annotation [2020-07-18 05:15:22,380 WARN L170 areAnnotationChecker]: L527-7 has no Hoare annotation [2020-07-18 05:15:22,380 WARN L170 areAnnotationChecker]: L527-10 has no Hoare annotation [2020-07-18 05:15:22,380 WARN L170 areAnnotationChecker]: L546 has no Hoare annotation [2020-07-18 05:15:22,380 WARN L170 areAnnotationChecker]: L535-6 has no Hoare annotation [2020-07-18 05:15:22,380 WARN L170 areAnnotationChecker]: L535-9 has no Hoare annotation [2020-07-18 05:15:22,380 WARN L170 areAnnotationChecker]: L528 has no Hoare annotation [2020-07-18 05:15:22,380 WARN L170 areAnnotationChecker]: L547 has no Hoare annotation [2020-07-18 05:15:22,380 WARN L170 areAnnotationChecker]: L536 has no Hoare annotation [2020-07-18 05:15:22,381 WARN L170 areAnnotationChecker]: L528-1 has no Hoare annotation [2020-07-18 05:15:22,381 WARN L170 areAnnotationChecker]: L548-5 has no Hoare annotation [2020-07-18 05:15:22,381 WARN L170 areAnnotationChecker]: L548-5 has no Hoare annotation [2020-07-18 05:15:22,381 WARN L170 areAnnotationChecker]: L536-1 has no Hoare annotation [2020-07-18 05:15:22,381 WARN L170 areAnnotationChecker]: L528-2 has no Hoare annotation [2020-07-18 05:15:22,381 WARN L170 areAnnotationChecker]: L552-4 has no Hoare annotation [2020-07-18 05:15:22,381 WARN L170 areAnnotationChecker]: L552-4 has no Hoare annotation [2020-07-18 05:15:22,381 WARN L170 areAnnotationChecker]: L548-1 has no Hoare annotation [2020-07-18 05:15:22,382 WARN L170 areAnnotationChecker]: L548-1 has no Hoare annotation [2020-07-18 05:15:22,382 WARN L170 areAnnotationChecker]: L536-2 has no Hoare annotation [2020-07-18 05:15:22,382 WARN L170 areAnnotationChecker]: L529 has no Hoare annotation [2020-07-18 05:15:22,382 WARN L170 areAnnotationChecker]: L552-5 has no Hoare annotation [2020-07-18 05:15:22,382 WARN L170 areAnnotationChecker]: L552 has no Hoare annotation [2020-07-18 05:15:22,382 WARN L170 areAnnotationChecker]: L552 has no Hoare annotation [2020-07-18 05:15:22,382 WARN L170 areAnnotationChecker]: L548-2 has no Hoare annotation [2020-07-18 05:15:22,382 WARN L170 areAnnotationChecker]: L548-4 has no Hoare annotation [2020-07-18 05:15:22,382 WARN L170 areAnnotationChecker]: L537 has no Hoare annotation [2020-07-18 05:15:22,382 WARN L170 areAnnotationChecker]: L529-1 has no Hoare annotation [2020-07-18 05:15:22,383 WARN L170 areAnnotationChecker]: L556 has no Hoare annotation [2020-07-18 05:15:22,383 WARN L170 areAnnotationChecker]: L556 has no Hoare annotation [2020-07-18 05:15:22,383 WARN L170 areAnnotationChecker]: L552-1 has no Hoare annotation [2020-07-18 05:15:22,383 WARN L170 areAnnotationChecker]: L552-3 has no Hoare annotation [2020-07-18 05:15:22,383 WARN L170 areAnnotationChecker]: L549 has no Hoare annotation [2020-07-18 05:15:22,383 WARN L170 areAnnotationChecker]: L537-1 has no Hoare annotation [2020-07-18 05:15:22,383 WARN L170 areAnnotationChecker]: L530 has no Hoare annotation [2020-07-18 05:15:22,383 WARN L170 areAnnotationChecker]: L556-1 has no Hoare annotation [2020-07-18 05:15:22,383 WARN L170 areAnnotationChecker]: L556-3 has no Hoare annotation [2020-07-18 05:15:22,383 WARN L170 areAnnotationChecker]: L553 has no Hoare annotation [2020-07-18 05:15:22,383 WARN L170 areAnnotationChecker]: L549-1 has no Hoare annotation [2020-07-18 05:15:22,384 WARN L170 areAnnotationChecker]: L538 has no Hoare annotation [2020-07-18 05:15:22,384 WARN L170 areAnnotationChecker]: L531 has no Hoare annotation [2020-07-18 05:15:22,384 WARN L170 areAnnotationChecker]: L531 has no Hoare annotation [2020-07-18 05:15:22,384 WARN L170 areAnnotationChecker]: L557 has no Hoare annotation [2020-07-18 05:15:22,384 WARN L170 areAnnotationChecker]: L557 has no Hoare annotation [2020-07-18 05:15:22,384 WARN L170 areAnnotationChecker]: L556-4 has no Hoare annotation [2020-07-18 05:15:22,385 WARN L170 areAnnotationChecker]: L553-1 has no Hoare annotation [2020-07-18 05:15:22,385 WARN L170 areAnnotationChecker]: L549-2 has no Hoare annotation [2020-07-18 05:15:22,385 WARN L170 areAnnotationChecker]: L539 has no Hoare annotation [2020-07-18 05:15:22,385 WARN L170 areAnnotationChecker]: L539 has no Hoare annotation [2020-07-18 05:15:22,385 WARN L170 areAnnotationChecker]: L531-1 has no Hoare annotation [2020-07-18 05:15:22,385 WARN L170 areAnnotationChecker]: L531-1 has no Hoare annotation [2020-07-18 05:15:22,385 WARN L170 areAnnotationChecker]: L531-3 has no Hoare annotation [2020-07-18 05:15:22,386 WARN L170 areAnnotationChecker]: L559-5 has no Hoare annotation [2020-07-18 05:15:22,386 WARN L170 areAnnotationChecker]: L559-5 has no Hoare annotation [2020-07-18 05:15:22,386 WARN L170 areAnnotationChecker]: L553-2 has no Hoare annotation [2020-07-18 05:15:22,386 WARN L170 areAnnotationChecker]: L550 has no Hoare annotation [2020-07-18 05:15:22,386 WARN L170 areAnnotationChecker]: L539-1 has no Hoare annotation [2020-07-18 05:15:22,386 WARN L170 areAnnotationChecker]: L539-1 has no Hoare annotation [2020-07-18 05:15:22,387 WARN L170 areAnnotationChecker]: L539-3 has no Hoare annotation [2020-07-18 05:15:22,387 WARN L170 areAnnotationChecker]: L532 has no Hoare annotation [2020-07-18 05:15:22,387 WARN L170 areAnnotationChecker]: L559-6 has no Hoare annotation [2020-07-18 05:15:22,387 WARN L170 areAnnotationChecker]: L559-1 has no Hoare annotation [2020-07-18 05:15:22,387 WARN L170 areAnnotationChecker]: L559-1 has no Hoare annotation [2020-07-18 05:15:22,387 WARN L170 areAnnotationChecker]: L554 has no Hoare annotation [2020-07-18 05:15:22,387 WARN L170 areAnnotationChecker]: L550-1 has no Hoare annotation [2020-07-18 05:15:22,388 WARN L170 areAnnotationChecker]: L540 has no Hoare annotation [2020-07-18 05:15:22,388 WARN L170 areAnnotationChecker]: L533 has no Hoare annotation [2020-07-18 05:15:22,388 WARN L170 areAnnotationChecker]: L564 has no Hoare annotation [2020-07-18 05:15:22,388 WARN L170 areAnnotationChecker]: L559-2 has no Hoare annotation [2020-07-18 05:15:22,388 WARN L170 areAnnotationChecker]: L559-4 has no Hoare annotation [2020-07-18 05:15:22,388 WARN L170 areAnnotationChecker]: L554-1 has no Hoare annotation [2020-07-18 05:15:22,388 WARN L170 areAnnotationChecker]: L550-2 has no Hoare annotation [2020-07-18 05:15:22,389 WARN L170 areAnnotationChecker]: L541 has no Hoare annotation [2020-07-18 05:15:22,389 WARN L170 areAnnotationChecker]: L533-1 has no Hoare annotation [2020-07-18 05:15:22,389 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2020-07-18 05:15:22,389 WARN L170 areAnnotationChecker]: L560 has no Hoare annotation [2020-07-18 05:15:22,389 WARN L170 areAnnotationChecker]: L554-2 has no Hoare annotation [2020-07-18 05:15:22,389 WARN L170 areAnnotationChecker]: L541-1 has no Hoare annotation [2020-07-18 05:15:22,389 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2020-07-18 05:15:22,390 WARN L170 areAnnotationChecker]: L560-1 has no Hoare annotation [2020-07-18 05:15:22,390 WARN L170 areAnnotationChecker]: L560-2 has no Hoare annotation [2020-07-18 05:15:22,390 WARN L170 areAnnotationChecker]: L561 has no Hoare annotation [2020-07-18 05:15:22,390 WARN L170 areAnnotationChecker]: L561-1 has no Hoare annotation [2020-07-18 05:15:22,390 INFO L163 areAnnotationChecker]: CFG has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2020-07-18 05:15:22,394 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.07 05:15:22 BoogieIcfgContainer [2020-07-18 05:15:22,394 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-18 05:15:22,398 INFO L168 Benchmark]: Toolchain (without parser) took 5994.31 ms. Allocated memory was 138.4 MB in the beginning and 288.9 MB in the end (delta: 150.5 MB). Free memory was 102.7 MB in the beginning and 101.7 MB in the end (delta: 978.7 kB). Peak memory consumption was 151.4 MB. Max. memory is 7.1 GB. [2020-07-18 05:15:22,399 INFO L168 Benchmark]: CDTParser took 0.93 ms. Allocated memory is still 138.4 MB. Free memory was 121.8 MB in the beginning and 121.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-18 05:15:22,400 INFO L168 Benchmark]: CACSL2BoogieTranslator took 688.17 ms. Allocated memory was 138.4 MB in the beginning and 203.4 MB in the end (delta: 65.0 MB). Free memory was 102.2 MB in the beginning and 168.7 MB in the end (delta: -66.4 MB). Peak memory consumption was 27.5 MB. Max. memory is 7.1 GB. [2020-07-18 05:15:22,401 INFO L168 Benchmark]: Boogie Preprocessor took 85.06 ms. Allocated memory is still 203.4 MB. Free memory was 168.7 MB in the beginning and 165.3 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 7.1 GB. [2020-07-18 05:15:22,401 INFO L168 Benchmark]: RCFGBuilder took 999.38 ms. Allocated memory is still 203.4 MB. Free memory was 165.3 MB in the beginning and 93.2 MB in the end (delta: 72.2 MB). Peak memory consumption was 72.2 MB. Max. memory is 7.1 GB. [2020-07-18 05:15:22,402 INFO L168 Benchmark]: TraceAbstraction took 4209.31 ms. Allocated memory was 203.4 MB in the beginning and 288.9 MB in the end (delta: 85.5 MB). Free memory was 92.5 MB in the beginning and 101.7 MB in the end (delta: -9.2 MB). Peak memory consumption was 76.3 MB. Max. memory is 7.1 GB. [2020-07-18 05:15:22,406 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.93 ms. Allocated memory is still 138.4 MB. Free memory was 121.8 MB in the beginning and 121.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 688.17 ms. Allocated memory was 138.4 MB in the beginning and 203.4 MB in the end (delta: 65.0 MB). Free memory was 102.2 MB in the beginning and 168.7 MB in the end (delta: -66.4 MB). Peak memory consumption was 27.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 85.06 ms. Allocated memory is still 203.4 MB. Free memory was 168.7 MB in the beginning and 165.3 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 999.38 ms. Allocated memory is still 203.4 MB. Free memory was 165.3 MB in the beginning and 93.2 MB in the end (delta: 72.2 MB). Peak memory consumption was 72.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4209.31 ms. Allocated memory was 203.4 MB in the beginning and 288.9 MB in the end (delta: 85.5 MB). Free memory was 92.5 MB in the beginning and 101.7 MB in the end (delta: -9.2 MB). Peak memory consumption was 76.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 557]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L521] int i = 0; VAL [i=0] [L522] int y = 0; VAL [i=0, y=0] [L523] List a = (List) malloc(sizeof(struct node)); VAL [a={-1:0}, i=0, malloc(sizeof(struct node))={-1:0}, y=0] [L524] COND FALSE !(a == 0) VAL [a={-1:0}, i=0, malloc(sizeof(struct node))={-1:0}, y=0] [L525] List t; VAL [a={-1:0}, i=0, malloc(sizeof(struct node))={-1:0}, y=0] [L526] List p = a; VAL [a={-1:0}, i=0, malloc(sizeof(struct node))={-1:0}, p={-1:0}, y=0] [L527] i < 10 && __VERIFIER_nondet_int() VAL [a={-1:0}, i=0, i < 10 && __VERIFIER_nondet_int()=1, malloc(sizeof(struct node))={-1:0}, p={-1:0}, y=0] [L527] i < 10 && __VERIFIER_nondet_int() VAL [__VERIFIER_nondet_int()=0, a={-1:0}, i=0, i < 10 && __VERIFIER_nondet_int()=0, malloc(sizeof(struct node))={-1:0}, p={-1:0}, y=0] [L527] COND FALSE !(i < 10 && __VERIFIER_nondet_int()) VAL [__VERIFIER_nondet_int()=0, a={-1:0}, i=0, i < 10 && __VERIFIER_nondet_int()=0, malloc(sizeof(struct node))={-1:0}, p={-1:0}, y=0] [L535] y < 10 && __VERIFIER_nondet_int() VAL [a={-1:0}, i=0, malloc(sizeof(struct node))={-1:0}, p={-1:0}, y=0, y < 10 && __VERIFIER_nondet_int()=1] [L535] y < 10 && __VERIFIER_nondet_int() VAL [__VERIFIER_nondet_int()=0, a={-1:0}, i=0, malloc(sizeof(struct node))={-1:0}, p={-1:0}, y=0, y < 10 && __VERIFIER_nondet_int()=0] [L535] COND FALSE !(y < 10 && __VERIFIER_nondet_int()) VAL [__VERIFIER_nondet_int()=0, a={-1:0}, i=0, malloc(sizeof(struct node))={-1:0}, p={-1:0}, y=0, y < 10 && __VERIFIER_nondet_int()=0] [L543] p->h = 3 VAL [a={-1:0}, i=0, malloc(sizeof(struct node))={-1:0}, p={-1:0}, y=0] [L544] p->n = 0 VAL [a={-1:0}, i=0, malloc(sizeof(struct node))={-1:0}, p={-1:0}, y=0] [L545] i = 0 VAL [a={-1:0}, i=0, malloc(sizeof(struct node))={-1:0}, p={-1:0}, y=0] [L546] y = 0 VAL [a={-1:0}, i=0, malloc(sizeof(struct node))={-1:0}, p={-1:0}, y=0] [L547] p = a VAL [a={-1:0}, i=0, malloc(sizeof(struct node))={-1:0}, p={-1:0}, y=0] [L548] EXPR p->h VAL [a={-1:0}, i=0, malloc(sizeof(struct node))={-1:0}, p={-1:0}, p->h=3, y=0] [L548] COND FALSE !(p->h == 1) VAL [a={-1:0}, i=0, malloc(sizeof(struct node))={-1:0}, p={-1:0}, p->h=3, y=0] [L552] EXPR p->h VAL [a={-1:0}, i=0, malloc(sizeof(struct node))={-1:0}, p={-1:0}, p->h=3, y=0] [L552] COND FALSE !(p->h == 2) VAL [a={-1:0}, i=0, malloc(sizeof(struct node))={-1:0}, p={-1:0}, p->h=3, y=0] [L556] EXPR p->h VAL [a={-1:0}, i=0, malloc(sizeof(struct node))={-1:0}, p={-1:0}, p->h=3, y=0] [L556] COND TRUE p->h != 3 || (i + y) < 20 VAL [a={-1:0}, i=0, malloc(sizeof(struct node))={-1:0}, p={-1:0}, p->h=3, y=0] [L557] __VERIFIER_error() VAL [a={-1:0}, i=0, malloc(sizeof(struct node))={-1:0}, p={-1:0}, y=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 129 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 4.0s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 2.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 280 SDtfs, 123 SDslu, 273 SDs, 0 SdLazy, 315 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=106occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 3 MinimizatonAttempts, 77 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 150 NumberOfCodeBlocks, 150 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 104 ConstructedInterpolants, 0 QuantifiedInterpolants, 6228 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 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...