java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/list-properties/simple-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 01:03:29,176 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 01:03:29,179 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 01:03:29,197 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 01:03:29,198 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 01:03:29,200 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 01:03:29,202 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 01:03:29,208 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 01:03:29,210 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 01:03:29,211 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 01:03:29,212 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 01:03:29,213 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 01:03:29,213 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 01:03:29,214 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 01:03:29,215 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 01:03:29,216 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 01:03:29,217 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 01:03:29,218 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 01:03:29,220 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 01:03:29,221 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 01:03:29,223 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 01:03:29,224 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 01:03:29,225 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 01:03:29,226 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 01:03:29,229 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 01:03:29,229 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 01:03:29,229 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 01:03:29,233 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 01:03:29,234 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 01:03:29,235 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 01:03:29,235 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 01:03:29,238 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 01:03:29,240 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 01:03:29,241 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 01:03:29,242 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 01:03:29,242 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 01:03:29,243 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 01:03:29,246 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 01:03:29,246 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 01:03:29,247 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 01:03:29,248 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 01:03:29,252 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-15 01:03:29,275 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 01:03:29,276 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 01:03:29,278 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 01:03:29,278 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 01:03:29,279 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 01:03:29,279 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 01:03:29,279 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 01:03:29,279 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 01:03:29,279 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 01:03:29,280 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 01:03:29,281 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 01:03:29,281 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 01:03:29,281 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 01:03:29,282 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 01:03:29,282 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 01:03:29,282 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 01:03:29,282 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 01:03:29,283 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 01:03:29,283 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 01:03:29,283 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 01:03:29,284 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 01:03:29,284 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:03:29,284 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 01:03:29,284 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 01:03:29,284 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 01:03:29,285 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 01:03:29,285 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 01:03:29,285 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 01:03:29,285 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-15 01:03:29,608 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 01:03:29,628 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 01:03:29,632 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 01:03:29,633 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 01:03:29,634 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 01:03:29,635 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-properties/simple-2.i [2019-10-15 01:03:29,707 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c29a2cace/89cdfa19b5bf4c39972400111f616f3f/FLAG01a42e919 [2019-10-15 01:03:30,224 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 01:03:30,225 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/list-properties/simple-2.i [2019-10-15 01:03:30,244 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c29a2cace/89cdfa19b5bf4c39972400111f616f3f/FLAG01a42e919 [2019-10-15 01:03:30,508 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c29a2cace/89cdfa19b5bf4c39972400111f616f3f [2019-10-15 01:03:30,517 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 01:03:30,519 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 01:03:30,520 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 01:03:30,520 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 01:03:30,524 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 01:03:30,525 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:03:30" (1/1) ... [2019-10-15 01:03:30,528 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@754cd447 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:03:30, skipping insertion in model container [2019-10-15 01:03:30,528 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:03:30" (1/1) ... [2019-10-15 01:03:30,535 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 01:03:30,581 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 01:03:31,013 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:03:31,023 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 01:03:31,064 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:03:31,118 INFO L192 MainTranslator]: Completed translation [2019-10-15 01:03:31,119 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:03:31 WrapperNode [2019-10-15 01:03:31,119 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 01:03:31,120 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 01:03:31,120 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 01:03:31,120 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 01:03:31,134 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:03:31" (1/1) ... [2019-10-15 01:03:31,135 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:03:31" (1/1) ... [2019-10-15 01:03:31,162 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:03:31" (1/1) ... [2019-10-15 01:03:31,162 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:03:31" (1/1) ... [2019-10-15 01:03:31,188 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:03:31" (1/1) ... [2019-10-15 01:03:31,194 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:03:31" (1/1) ... [2019-10-15 01:03:31,208 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:03:31" (1/1) ... [2019-10-15 01:03:31,213 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 01:03:31,214 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 01:03:31,214 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 01:03:31,214 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 01:03:31,215 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:03:31" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:03:31,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 01:03:31,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 01:03:31,277 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-10-15 01:03:31,277 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-10-15 01:03:31,277 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-10-15 01:03:31,277 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-10-15 01:03:31,277 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-10-15 01:03:31,277 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2019-10-15 01:03:31,277 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 01:03:31,278 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 01:03:31,278 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 01:03:31,278 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-10-15 01:03:31,278 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-10-15 01:03:31,278 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-10-15 01:03:31,279 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-10-15 01:03:31,279 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-10-15 01:03:31,279 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-10-15 01:03:31,279 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-10-15 01:03:31,279 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-10-15 01:03:31,279 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-10-15 01:03:31,280 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-10-15 01:03:31,280 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-10-15 01:03:31,280 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-10-15 01:03:31,280 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-10-15 01:03:31,280 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-10-15 01:03:31,280 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-10-15 01:03:31,281 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-10-15 01:03:31,281 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-10-15 01:03:31,281 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-10-15 01:03:31,281 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-10-15 01:03:31,281 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-10-15 01:03:31,281 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-10-15 01:03:31,282 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-10-15 01:03:31,282 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-10-15 01:03:31,282 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-10-15 01:03:31,282 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-10-15 01:03:31,282 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-10-15 01:03:31,282 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-10-15 01:03:31,283 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-10-15 01:03:31,283 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-10-15 01:03:31,283 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-10-15 01:03:31,283 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-10-15 01:03:31,283 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-10-15 01:03:31,283 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-10-15 01:03:31,283 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-10-15 01:03:31,284 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-10-15 01:03:31,284 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-10-15 01:03:31,284 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-10-15 01:03:31,284 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-10-15 01:03:31,284 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-10-15 01:03:31,284 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-10-15 01:03:31,284 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-10-15 01:03:31,285 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-10-15 01:03:31,285 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-10-15 01:03:31,285 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-10-15 01:03:31,285 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-10-15 01:03:31,285 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-10-15 01:03:31,285 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-10-15 01:03:31,286 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-10-15 01:03:31,286 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-10-15 01:03:31,286 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-10-15 01:03:31,286 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-10-15 01:03:31,286 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-10-15 01:03:31,286 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-10-15 01:03:31,287 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-10-15 01:03:31,287 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-10-15 01:03:31,287 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 01:03:31,287 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-15 01:03:31,287 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-10-15 01:03:31,287 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 01:03:31,288 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-10-15 01:03:31,288 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-10-15 01:03:31,288 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-10-15 01:03:31,288 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-10-15 01:03:31,288 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-10-15 01:03:31,288 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-10-15 01:03:31,288 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-10-15 01:03:31,289 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-10-15 01:03:31,289 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-15 01:03:31,289 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-10-15 01:03:31,289 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-10-15 01:03:31,289 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-10-15 01:03:31,289 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-10-15 01:03:31,290 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-10-15 01:03:31,290 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-10-15 01:03:31,290 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-10-15 01:03:31,290 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-10-15 01:03:31,290 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-10-15 01:03:31,290 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-10-15 01:03:31,291 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-10-15 01:03:31,291 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-10-15 01:03:31,291 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-10-15 01:03:31,291 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-10-15 01:03:31,291 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-10-15 01:03:31,291 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-10-15 01:03:31,292 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-10-15 01:03:31,292 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-10-15 01:03:31,292 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-10-15 01:03:31,292 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-10-15 01:03:31,292 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-10-15 01:03:31,292 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-10-15 01:03:31,292 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-10-15 01:03:31,293 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-10-15 01:03:31,293 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-10-15 01:03:31,293 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-10-15 01:03:31,293 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-10-15 01:03:31,293 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-10-15 01:03:31,293 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-10-15 01:03:31,293 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-10-15 01:03:31,294 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-10-15 01:03:31,294 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-10-15 01:03:31,294 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-10-15 01:03:31,294 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-10-15 01:03:31,294 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-10-15 01:03:31,294 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-10-15 01:03:31,294 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-10-15 01:03:31,295 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-10-15 01:03:31,295 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-10-15 01:03:31,295 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2019-10-15 01:03:31,295 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 01:03:31,295 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 01:03:31,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 01:03:31,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 01:03:31,296 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 01:03:31,296 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 01:03:31,296 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 01:03:31,296 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 01:03:31,296 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 01:03:31,689 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2019-10-15 01:03:31,875 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 01:03:31,875 INFO L284 CfgBuilder]: Removed 2 assume(true) statements. [2019-10-15 01:03:31,878 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:03:31 BoogieIcfgContainer [2019-10-15 01:03:31,878 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 01:03:31,880 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 01:03:31,880 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 01:03:31,884 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 01:03:31,885 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:03:30" (1/3) ... [2019-10-15 01:03:31,889 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@748aab0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:03:31, skipping insertion in model container [2019-10-15 01:03:31,890 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:03:31" (2/3) ... [2019-10-15 01:03:31,890 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@748aab0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:03:31, skipping insertion in model container [2019-10-15 01:03:31,891 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:03:31" (3/3) ... [2019-10-15 01:03:31,892 INFO L109 eAbstractionObserver]: Analyzing ICFG simple-2.i [2019-10-15 01:03:31,903 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 01:03:31,914 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 01:03:31,944 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 01:03:31,971 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 01:03:31,971 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 01:03:31,971 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 01:03:31,972 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 01:03:31,972 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 01:03:31,972 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 01:03:31,972 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 01:03:31,972 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 01:03:31,987 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states. [2019-10-15 01:03:31,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-10-15 01:03:31,994 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:03:31,995 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:03:31,997 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:03:32,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:03:32,003 INFO L82 PathProgramCache]: Analyzing trace with hash 1710443637, now seen corresponding path program 1 times [2019-10-15 01:03:32,012 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:03:32,012 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928827404] [2019-10-15 01:03:32,012 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:03:32,013 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:03:32,013 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:03:32,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:03:32,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:03:32,146 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928827404] [2019-10-15 01:03:32,147 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:03:32,148 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 01:03:32,148 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810628509] [2019-10-15 01:03:32,153 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 01:03:32,155 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:03:32,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 01:03:32,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:03:32,174 INFO L87 Difference]: Start difference. First operand 27 states. Second operand 2 states. [2019-10-15 01:03:32,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:03:32,201 INFO L93 Difference]: Finished difference Result 38 states and 46 transitions. [2019-10-15 01:03:32,201 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 01:03:32,203 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2019-10-15 01:03:32,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:03:32,213 INFO L225 Difference]: With dead ends: 38 [2019-10-15 01:03:32,214 INFO L226 Difference]: Without dead ends: 18 [2019-10-15 01:03:32,218 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:03:32,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-10-15 01:03:32,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-10-15 01:03:32,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-10-15 01:03:32,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2019-10-15 01:03:32,264 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 13 [2019-10-15 01:03:32,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:03:32,264 INFO L462 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2019-10-15 01:03:32,265 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 01:03:32,265 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2019-10-15 01:03:32,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-10-15 01:03:32,266 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:03:32,266 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:03:32,266 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:03:32,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:03:32,267 INFO L82 PathProgramCache]: Analyzing trace with hash 1041507629, now seen corresponding path program 1 times [2019-10-15 01:03:32,267 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:03:32,267 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784503162] [2019-10-15 01:03:32,268 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:03:32,268 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:03:32,268 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:03:32,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:03:32,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:03:32,408 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784503162] [2019-10-15 01:03:32,408 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:03:32,409 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 01:03:32,409 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687371070] [2019-10-15 01:03:32,411 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 01:03:32,411 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:03:32,411 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 01:03:32,412 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 01:03:32,412 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand 5 states. [2019-10-15 01:03:32,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:03:32,552 INFO L93 Difference]: Finished difference Result 33 states and 35 transitions. [2019-10-15 01:03:32,553 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-15 01:03:32,553 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2019-10-15 01:03:32,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:03:32,554 INFO L225 Difference]: With dead ends: 33 [2019-10-15 01:03:32,554 INFO L226 Difference]: Without dead ends: 31 [2019-10-15 01:03:32,556 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-10-15 01:03:32,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2019-10-15 01:03:32,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 23. [2019-10-15 01:03:32,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-10-15 01:03:32,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 25 transitions. [2019-10-15 01:03:32,567 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 25 transitions. Word has length 14 [2019-10-15 01:03:32,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:03:32,567 INFO L462 AbstractCegarLoop]: Abstraction has 23 states and 25 transitions. [2019-10-15 01:03:32,568 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 01:03:32,568 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 25 transitions. [2019-10-15 01:03:32,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-10-15 01:03:32,569 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:03:32,569 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:03:32,569 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:03:32,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:03:32,570 INFO L82 PathProgramCache]: Analyzing trace with hash 714847529, now seen corresponding path program 1 times [2019-10-15 01:03:32,570 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:03:32,570 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835959641] [2019-10-15 01:03:32,570 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:03:32,570 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:03:32,571 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:03:32,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:03:32,817 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:03:32,818 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835959641] [2019-10-15 01:03:32,818 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2025119388] [2019-10-15 01:03:32,818 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:03:32,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:03:32,951 INFO L256 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 19 conjunts are in the unsatisfiable core [2019-10-15 01:03:32,957 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:03:33,035 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2019-10-15 01:03:33,036 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-15 01:03:33,045 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 01:03:33,050 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2019-10-15 01:03:33,050 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-15 01:03:33,058 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 01:03:33,058 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-15 01:03:33,058 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:26, output treesize:18 [2019-10-15 01:03:33,078 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2019-10-15 01:03:33,079 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-15 01:03:33,086 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 01:03:33,089 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2019-10-15 01:03:33,090 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-15 01:03:33,095 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 01:03:33,095 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-15 01:03:33,095 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:7 [2019-10-15 01:03:33,098 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:03:33,098 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:03:33,140 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 29 [2019-10-15 01:03:33,143 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2019-10-15 01:03:33,159 INFO L567 ElimStorePlain]: treesize reduction 19, result has 36.7 percent of original size [2019-10-15 01:03:33,159 INFO L464 ElimStorePlain]: Eliminatee |v_#memory_$Pointer$.offset_12| vanished before elimination [2019-10-15 01:03:33,159 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 2 xjuncts. [2019-10-15 01:03:33,160 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:39, output treesize:11 [2019-10-15 01:03:33,178 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:03:33,179 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [892902402] [2019-10-15 01:03:33,186 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 18 [2019-10-15 01:03:33,225 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-15 01:03:33,225 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-15 01:03:33,288 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-15 01:03:33,290 INFO L272 AbstractInterpreter]: Visited 6 different actions 6 times. Never merged. Never widened. Performed 19 root evaluator evaluations with a maximum evaluation depth of 0. Performed 19 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 28 variables. [2019-10-15 01:03:33,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:03:33,294 INFO L536 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-15 01:03:33,324 INFO L227 lantSequenceWeakener]: Weakened 4 states. On average, predicates are now at 100% of their original sizes. [2019-10-15 01:03:33,325 INFO L551 sIntCurrentIteration]: Unifying AI predicates [2019-10-15 01:03:33,326 INFO L553 sIntCurrentIteration]: We unified 16 AI predicates to 16 [2019-10-15 01:03:33,327 INFO L562 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-15 01:03:33,327 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-10-15 01:03:33,328 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6, 6, 5] total 8 [2019-10-15 01:03:33,328 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901902736] [2019-10-15 01:03:33,328 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 01:03:33,329 INFO L137 tionRefinementEngine]: Using predicate unifier AbsIntPredicateUnifier provided by strategy TAIPAN [2019-10-15 01:03:33,329 INFO L124 tionRefinementEngine]: Using hoare triple checker CachingHoareTripleCheckerMap provided by strategy [2019-10-15 01:03:33,330 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 01:03:33,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:03:33,330 INFO L87 Difference]: Start difference. First operand 23 states and 25 transitions. Second operand 2 states. [2019-10-15 01:03:33,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:03:33,332 INFO L93 Difference]: Finished difference Result 23 states and 25 transitions. [2019-10-15 01:03:33,332 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 01:03:33,333 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 17 [2019-10-15 01:03:33,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:03:33,333 INFO L225 Difference]: With dead ends: 23 [2019-10-15 01:03:33,333 INFO L226 Difference]: Without dead ends: 0 [2019-10-15 01:03:33,336 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:03:33,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-15 01:03:33,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-15 01:03:33,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-15 01:03:33,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-15 01:03:33,338 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2019-10-15 01:03:33,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:03:33,338 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-15 01:03:33,338 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 01:03:33,338 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-15 01:03:33,338 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-15 01:03:33,543 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:03:33,547 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-15 01:03:33,570 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-10-15 01:03:33,570 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-10-15 01:03:33,570 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-15 01:03:33,570 INFO L446 ceAbstractionStarter]: At program point myexitENTRY(lines 513 515) the Hoare annotation is: true [2019-10-15 01:03:33,570 INFO L443 ceAbstractionStarter]: For program point myexitEXIT(lines 513 515) no Hoare annotation was computed. [2019-10-15 01:03:33,570 INFO L446 ceAbstractionStarter]: At program point L514(line 514) the Hoare annotation is: true [2019-10-15 01:03:33,571 INFO L443 ceAbstractionStarter]: For program point __bswap_32ENTRY(lines 161 165) no Hoare annotation was computed. [2019-10-15 01:03:33,571 INFO L443 ceAbstractionStarter]: For program point __bswap_32FINAL(lines 161 165) no Hoare annotation was computed. [2019-10-15 01:03:33,571 INFO L443 ceAbstractionStarter]: For program point __bswap_32EXIT(lines 161 165) no Hoare annotation was computed. [2019-10-15 01:03:33,571 INFO L443 ceAbstractionStarter]: For program point __uint64_identityFINAL(lines 181 185) no Hoare annotation was computed. [2019-10-15 01:03:33,571 INFO L443 ceAbstractionStarter]: For program point __uint64_identityENTRY(lines 181 185) no Hoare annotation was computed. [2019-10-15 01:03:33,571 INFO L443 ceAbstractionStarter]: For program point __uint64_identityEXIT(lines 181 185) no Hoare annotation was computed. [2019-10-15 01:03:33,571 INFO L443 ceAbstractionStarter]: For program point __bswap_64ENTRY(lines 166 170) no Hoare annotation was computed. [2019-10-15 01:03:33,571 INFO L443 ceAbstractionStarter]: For program point __bswap_64FINAL(lines 166 170) no Hoare annotation was computed. [2019-10-15 01:03:33,571 INFO L443 ceAbstractionStarter]: For program point __bswap_64EXIT(lines 166 170) no Hoare annotation was computed. [2019-10-15 01:03:33,571 INFO L443 ceAbstractionStarter]: For program point __uint16_identityENTRY(lines 171 175) no Hoare annotation was computed. [2019-10-15 01:03:33,571 INFO L443 ceAbstractionStarter]: For program point __uint16_identityEXIT(lines 171 175) no Hoare annotation was computed. [2019-10-15 01:03:33,572 INFO L443 ceAbstractionStarter]: For program point __uint16_identityFINAL(lines 171 175) no Hoare annotation was computed. [2019-10-15 01:03:33,572 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-15 01:03:33,572 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-10-15 01:03:33,572 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-15 01:03:33,572 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-15 01:03:33,572 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 520 542) no Hoare annotation was computed. [2019-10-15 01:03:33,572 INFO L439 ceAbstractionStarter]: At program point L535-2(lines 535 540) the Hoare annotation is: false [2019-10-15 01:03:33,572 INFO L443 ceAbstractionStarter]: For program point L535-3(lines 535 540) no Hoare annotation was computed. [2019-10-15 01:03:33,572 INFO L443 ceAbstractionStarter]: For program point L536(lines 536 538) no Hoare annotation was computed. [2019-10-15 01:03:33,572 INFO L443 ceAbstractionStarter]: For program point L536-2(lines 536 538) no Hoare annotation was computed. [2019-10-15 01:03:33,572 INFO L443 ceAbstractionStarter]: For program point L528(line 528) no Hoare annotation was computed. [2019-10-15 01:03:33,573 INFO L446 ceAbstractionStarter]: At program point L528-1(line 528) the Hoare annotation is: true [2019-10-15 01:03:33,573 INFO L443 ceAbstractionStarter]: For program point L528-3(line 528) no Hoare annotation was computed. [2019-10-15 01:03:33,573 INFO L443 ceAbstractionStarter]: For program point L537(line 537) no Hoare annotation was computed. [2019-10-15 01:03:33,573 INFO L443 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 537) no Hoare annotation was computed. [2019-10-15 01:03:33,573 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 520 542) no Hoare annotation was computed. [2019-10-15 01:03:33,573 INFO L443 ceAbstractionStarter]: For program point L525-1(lines 525 531) no Hoare annotation was computed. [2019-10-15 01:03:33,573 INFO L439 ceAbstractionStarter]: At program point L525-3(lines 525 531) the Hoare annotation is: false [2019-10-15 01:03:33,573 INFO L443 ceAbstractionStarter]: For program point L525-4(lines 525 531) no Hoare annotation was computed. [2019-10-15 01:03:33,573 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 520 542) the Hoare annotation is: true [2019-10-15 01:03:33,574 INFO L443 ceAbstractionStarter]: For program point L522(line 522) no Hoare annotation was computed. [2019-10-15 01:03:33,574 INFO L446 ceAbstractionStarter]: At program point L522-1(line 522) the Hoare annotation is: true [2019-10-15 01:03:33,574 INFO L443 ceAbstractionStarter]: For program point L522-3(line 522) no Hoare annotation was computed. [2019-10-15 01:03:33,574 INFO L443 ceAbstractionStarter]: For program point __uint32_identityFINAL(lines 176 180) no Hoare annotation was computed. [2019-10-15 01:03:33,574 INFO L443 ceAbstractionStarter]: For program point __uint32_identityENTRY(lines 176 180) no Hoare annotation was computed. [2019-10-15 01:03:33,574 INFO L443 ceAbstractionStarter]: For program point __uint32_identityEXIT(lines 176 180) no Hoare annotation was computed. [2019-10-15 01:03:33,583 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 01:03:33 BoogieIcfgContainer [2019-10-15 01:03:33,583 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-15 01:03:33,585 INFO L168 Benchmark]: Toolchain (without parser) took 3065.93 ms. Allocated memory was 139.5 MB in the beginning and 235.9 MB in the end (delta: 96.5 MB). Free memory was 102.8 MB in the beginning and 125.3 MB in the end (delta: -22.5 MB). Peak memory consumption was 74.0 MB. Max. memory is 7.1 GB. [2019-10-15 01:03:33,586 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 139.5 MB. Free memory is still 122.3 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-10-15 01:03:33,587 INFO L168 Benchmark]: CACSL2BoogieTranslator took 599.39 ms. Allocated memory was 139.5 MB in the beginning and 202.9 MB in the end (delta: 63.4 MB). Free memory was 102.8 MB in the beginning and 169.1 MB in the end (delta: -66.3 MB). Peak memory consumption was 25.7 MB. Max. memory is 7.1 GB. [2019-10-15 01:03:33,587 INFO L168 Benchmark]: Boogie Preprocessor took 93.60 ms. Allocated memory is still 202.9 MB. Free memory was 169.1 MB in the beginning and 166.9 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. [2019-10-15 01:03:33,588 INFO L168 Benchmark]: RCFGBuilder took 664.68 ms. Allocated memory is still 202.9 MB. Free memory was 166.9 MB in the beginning and 125.3 MB in the end (delta: 41.6 MB). Peak memory consumption was 41.6 MB. Max. memory is 7.1 GB. [2019-10-15 01:03:33,589 INFO L168 Benchmark]: TraceAbstraction took 1703.08 ms. Allocated memory was 202.9 MB in the beginning and 235.9 MB in the end (delta: 33.0 MB). Free memory was 124.3 MB in the beginning and 125.3 MB in the end (delta: -947.6 kB). Peak memory consumption was 32.1 MB. Max. memory is 7.1 GB. [2019-10-15 01:03:33,593 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 139.5 MB. Free memory is still 122.3 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 599.39 ms. Allocated memory was 139.5 MB in the beginning and 202.9 MB in the end (delta: 63.4 MB). Free memory was 102.8 MB in the beginning and 169.1 MB in the end (delta: -66.3 MB). Peak memory consumption was 25.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 93.60 ms. Allocated memory is still 202.9 MB. Free memory was 169.1 MB in the beginning and 166.9 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 664.68 ms. Allocated memory is still 202.9 MB. Free memory was 166.9 MB in the beginning and 125.3 MB in the end (delta: 41.6 MB). Peak memory consumption was 41.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1703.08 ms. Allocated memory was 202.9 MB in the beginning and 235.9 MB in the end (delta: 33.0 MB). Free memory was 124.3 MB in the beginning and 125.3 MB in the end (delta: -947.6 kB). Peak memory consumption was 32.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 537]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 514]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 525]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 535]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 43 locations, 1 error locations. Result: SAFE, OverallTime: 1.6s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 50 SDtfs, 10 SDslu, 39 SDs, 0 SdLazy, 27 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 8 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 12 PreInvPairs, 12 NumberOfFragments, 10 HoareAnnotationTreeSize, 12 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 61 NumberOfCodeBlocks, 61 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 73 ConstructedInterpolants, 0 QuantifiedInterpolants, 5867 SizeOfPredicates, 7 NumberOfNonLiveVariables, 75 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 3/6 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: TIME[ms]: 109, ITERATIONS: 1, WAS_STRONG: 1, WEAKENING_RATIO: 0.9375, AVG_VARS_REMOVED_DURING_WEAKENING: 0.875, AVG_WEAKENED_CONJUNCTS: 0.375, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...