/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=LOWLEXORDER --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/list-ext-properties/list-ext.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-177f698 [2020-08-21 18:10:21,307 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-21 18:10:21,310 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-21 18:10:21,334 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-21 18:10:21,334 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-21 18:10:21,335 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-21 18:10:21,337 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-21 18:10:21,339 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-21 18:10:21,340 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-21 18:10:21,341 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-21 18:10:21,342 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-21 18:10:21,343 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-21 18:10:21,344 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-21 18:10:21,345 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-21 18:10:21,346 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-21 18:10:21,347 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-21 18:10:21,348 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-21 18:10:21,349 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-21 18:10:21,350 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-21 18:10:21,352 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-21 18:10:21,354 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-21 18:10:21,355 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-21 18:10:21,356 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-21 18:10:21,357 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-21 18:10:21,360 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-21 18:10:21,360 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-21 18:10:21,360 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-21 18:10:21,361 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-21 18:10:21,361 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-21 18:10:21,362 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-21 18:10:21,363 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-21 18:10:21,363 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-21 18:10:21,364 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-21 18:10:21,365 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-21 18:10:21,366 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-21 18:10:21,366 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-21 18:10:21,367 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-21 18:10:21,367 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-21 18:10:21,367 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-21 18:10:21,368 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-21 18:10:21,369 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-21 18:10:21,370 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-08-21 18:10:21,392 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-21 18:10:21,392 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-21 18:10:21,394 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-21 18:10:21,394 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-21 18:10:21,394 INFO L138 SettingsManager]: * Use SBE=true [2020-08-21 18:10:21,394 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-21 18:10:21,395 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-21 18:10:21,395 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-21 18:10:21,395 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-21 18:10:21,395 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-21 18:10:21,395 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-21 18:10:21,396 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-21 18:10:21,396 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-21 18:10:21,396 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-21 18:10:21,396 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-21 18:10:21,397 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-21 18:10:21,397 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-21 18:10:21,397 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-21 18:10:21,397 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-21 18:10:21,397 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-21 18:10:21,398 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-21 18:10:21,398 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-21 18:10:21,398 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-21 18:10:21,398 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-21 18:10:21,398 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-21 18:10:21,399 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-21 18:10:21,399 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-21 18:10:21,399 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-21 18:10:21,399 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-21 18:10:21,399 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES 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: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;log-additional-information=true; [2020-08-21 18:10:21,722 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-21 18:10:21,735 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-21 18:10:21,738 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-21 18:10:21,740 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-21 18:10:21,740 INFO L275 PluginConnector]: CDTParser initialized [2020-08-21 18:10:21,741 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-ext-properties/list-ext.i [2020-08-21 18:10:21,805 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/de560f2ee/a235e493da364dba843db94dadf4fd93/FLAG15cea1cd7 [2020-08-21 18:10:22,298 INFO L306 CDTParser]: Found 1 translation units. [2020-08-21 18:10:22,298 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/list-ext-properties/list-ext.i [2020-08-21 18:10:22,313 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/de560f2ee/a235e493da364dba843db94dadf4fd93/FLAG15cea1cd7 [2020-08-21 18:10:22,592 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/de560f2ee/a235e493da364dba843db94dadf4fd93 [2020-08-21 18:10:22,602 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-21 18:10:22,604 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-21 18:10:22,605 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-21 18:10:22,605 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-21 18:10:22,610 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-21 18:10:22,611 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 06:10:22" (1/1) ... [2020-08-21 18:10:22,614 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c03ede6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:10:22, skipping insertion in model container [2020-08-21 18:10:22,614 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 06:10:22" (1/1) ... [2020-08-21 18:10:22,622 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-21 18:10:22,683 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-21 18:10:23,153 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 18:10:23,162 INFO L203 MainTranslator]: Completed pre-run [2020-08-21 18:10:23,208 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 18:10:23,279 INFO L208 MainTranslator]: Completed translation [2020-08-21 18:10:23,281 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:10:23 WrapperNode [2020-08-21 18:10:23,281 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-21 18:10:23,282 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-21 18:10:23,282 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-21 18:10:23,282 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-21 18:10:23,296 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:10:23" (1/1) ... [2020-08-21 18:10:23,296 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:10:23" (1/1) ... [2020-08-21 18:10:23,314 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:10:23" (1/1) ... [2020-08-21 18:10:23,315 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:10:23" (1/1) ... [2020-08-21 18:10:23,333 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:10:23" (1/1) ... [2020-08-21 18:10:23,340 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:10:23" (1/1) ... [2020-08-21 18:10:23,344 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:10:23" (1/1) ... [2020-08-21 18:10:23,351 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-21 18:10:23,351 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-21 18:10:23,352 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-21 18:10:23,352 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-21 18:10:23,353 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:10:23" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-21 18:10:23,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-21 18:10:23,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-21 18:10:23,423 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-08-21 18:10:23,423 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-08-21 18:10:23,423 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2020-08-21 18:10:23,423 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2020-08-21 18:10:23,423 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2020-08-21 18:10:23,423 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2020-08-21 18:10:23,424 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-21 18:10:23,424 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-21 18:10:23,424 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-21 18:10:23,424 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-08-21 18:10:23,424 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-08-21 18:10:23,424 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-08-21 18:10:23,425 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-08-21 18:10:23,425 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-08-21 18:10:23,425 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-08-21 18:10:23,425 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-08-21 18:10:23,425 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-08-21 18:10:23,425 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-08-21 18:10:23,426 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-08-21 18:10:23,426 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-08-21 18:10:23,426 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-08-21 18:10:23,426 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-08-21 18:10:23,426 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-08-21 18:10:23,426 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-08-21 18:10:23,427 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-08-21 18:10:23,427 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-08-21 18:10:23,427 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-08-21 18:10:23,427 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2020-08-21 18:10:23,427 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2020-08-21 18:10:23,427 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2020-08-21 18:10:23,428 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-08-21 18:10:23,428 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-08-21 18:10:23,428 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-08-21 18:10:23,428 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-08-21 18:10:23,428 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-08-21 18:10:23,428 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-08-21 18:10:23,429 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-08-21 18:10:23,429 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-08-21 18:10:23,429 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-08-21 18:10:23,429 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-08-21 18:10:23,429 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-08-21 18:10:23,429 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-08-21 18:10:23,430 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-08-21 18:10:23,430 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-08-21 18:10:23,430 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-08-21 18:10:23,430 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-08-21 18:10:23,430 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-08-21 18:10:23,430 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-08-21 18:10:23,431 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-08-21 18:10:23,431 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-08-21 18:10:23,431 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-08-21 18:10:23,431 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-08-21 18:10:23,431 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-08-21 18:10:23,432 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-08-21 18:10:23,432 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-08-21 18:10:23,432 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-08-21 18:10:23,432 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-08-21 18:10:23,432 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-08-21 18:10:23,432 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-08-21 18:10:23,432 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-08-21 18:10:23,433 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-08-21 18:10:23,433 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-08-21 18:10:23,433 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-08-21 18:10:23,433 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-08-21 18:10:23,433 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-21 18:10:23,433 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-08-21 18:10:23,434 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-08-21 18:10:23,434 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-21 18:10:23,434 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-08-21 18:10:23,434 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-08-21 18:10:23,434 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-08-21 18:10:23,434 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-08-21 18:10:23,434 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-08-21 18:10:23,435 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-08-21 18:10:23,435 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-08-21 18:10:23,435 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-08-21 18:10:23,435 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-08-21 18:10:23,435 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-08-21 18:10:23,435 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-08-21 18:10:23,436 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-08-21 18:10:23,436 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-08-21 18:10:23,436 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-08-21 18:10:23,436 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-08-21 18:10:23,436 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-08-21 18:10:23,436 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-08-21 18:10:23,436 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-08-21 18:10:23,437 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-08-21 18:10:23,437 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-08-21 18:10:23,437 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-08-21 18:10:23,437 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-08-21 18:10:23,437 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-08-21 18:10:23,438 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-08-21 18:10:23,438 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-08-21 18:10:23,438 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-08-21 18:10:23,438 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-08-21 18:10:23,438 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-08-21 18:10:23,438 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-08-21 18:10:23,438 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-08-21 18:10:23,439 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-08-21 18:10:23,439 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-08-21 18:10:23,439 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-08-21 18:10:23,439 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-08-21 18:10:23,439 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-08-21 18:10:23,439 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-08-21 18:10:23,439 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-08-21 18:10:23,440 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-08-21 18:10:23,440 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-08-21 18:10:23,440 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-08-21 18:10:23,440 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-08-21 18:10:23,440 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-08-21 18:10:23,440 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-08-21 18:10:23,440 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-08-21 18:10:23,441 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-08-21 18:10:23,441 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-08-21 18:10:23,441 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-08-21 18:10:23,441 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-08-21 18:10:23,441 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2020-08-21 18:10:23,441 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-21 18:10:23,441 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-21 18:10:23,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-21 18:10:23,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-21 18:10:23,442 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-21 18:10:23,442 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-21 18:10:23,442 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-21 18:10:23,442 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-21 18:10:23,443 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-21 18:10:23,810 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2020-08-21 18:10:24,011 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-21 18:10:24,011 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-08-21 18:10:24,016 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 06:10:24 BoogieIcfgContainer [2020-08-21 18:10:24,017 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-21 18:10:24,018 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-21 18:10:24,018 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-21 18:10:24,021 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-21 18:10:24,022 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.08 06:10:22" (1/3) ... [2020-08-21 18:10:24,023 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cc3dd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 06:10:24, skipping insertion in model container [2020-08-21 18:10:24,023 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:10:23" (2/3) ... [2020-08-21 18:10:24,023 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cc3dd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 06:10:24, skipping insertion in model container [2020-08-21 18:10:24,023 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 06:10:24" (3/3) ... [2020-08-21 18:10:24,025 INFO L109 eAbstractionObserver]: Analyzing ICFG list-ext.i [2020-08-21 18:10:24,036 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-21 18:10:24,044 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-21 18:10:24,059 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-21 18:10:24,084 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-21 18:10:24,085 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-21 18:10:24,085 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-21 18:10:24,085 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-21 18:10:24,085 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-21 18:10:24,086 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-21 18:10:24,086 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-21 18:10:24,086 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-21 18:10:24,105 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states. [2020-08-21 18:10:24,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-08-21 18:10:24,112 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 18:10:24,113 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 18:10:24,114 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 18:10:24,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 18:10:24,120 INFO L82 PathProgramCache]: Analyzing trace with hash 1234582252, now seen corresponding path program 1 times [2020-08-21 18:10:24,129 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 18:10:24,129 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [626913351] [2020-08-21 18:10:24,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 18:10:24,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:10:24,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 18:10:24,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:10:24,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 18:10:24,348 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [626913351] [2020-08-21 18:10:24,351 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 18:10:24,351 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-21 18:10:24,352 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300605178] [2020-08-21 18:10:24,358 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-21 18:10:24,359 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 18:10:24,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-21 18:10:24,375 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-21 18:10:24,378 INFO L87 Difference]: Start difference. First operand 40 states. Second operand 3 states. [2020-08-21 18:10:24,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 18:10:24,546 INFO L93 Difference]: Finished difference Result 65 states and 90 transitions. [2020-08-21 18:10:24,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-21 18:10:24,548 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2020-08-21 18:10:24,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 18:10:24,557 INFO L225 Difference]: With dead ends: 65 [2020-08-21 18:10:24,558 INFO L226 Difference]: Without dead ends: 27 [2020-08-21 18:10:24,561 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 [2020-08-21 18:10:24,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-08-21 18:10:24,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2020-08-21 18:10:24,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-08-21 18:10:24,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 32 transitions. [2020-08-21 18:10:24,604 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 32 transitions. Word has length 16 [2020-08-21 18:10:24,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 18:10:24,605 INFO L479 AbstractCegarLoop]: Abstraction has 27 states and 32 transitions. [2020-08-21 18:10:24,605 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-21 18:10:24,605 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 32 transitions. [2020-08-21 18:10:24,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-08-21 18:10:24,606 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 18:10:24,606 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] [2020-08-21 18:10:24,607 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-21 18:10:24,607 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 18:10:24,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 18:10:24,607 INFO L82 PathProgramCache]: Analyzing trace with hash 1638853746, now seen corresponding path program 1 times [2020-08-21 18:10:24,608 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 18:10:24,608 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1884729875] [2020-08-21 18:10:24,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 18:10:24,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-21 18:10:24,652 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-21 18:10:24,653 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-21 18:10:24,658 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-21 18:10:24,676 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.08 06:10:24 BoogieIcfgContainer [2020-08-21 18:10:24,677 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-21 18:10:24,680 INFO L168 Benchmark]: Toolchain (without parser) took 2075.39 ms. Allocated memory was 140.0 MB in the beginning and 237.0 MB in the end (delta: 97.0 MB). Free memory was 102.0 MB in the beginning and 195.7 MB in the end (delta: -93.8 MB). Peak memory consumption was 3.2 MB. Max. memory is 7.1 GB. [2020-08-21 18:10:24,681 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 140.0 MB. Free memory was 121.6 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-08-21 18:10:24,682 INFO L168 Benchmark]: CACSL2BoogieTranslator took 676.59 ms. Allocated memory was 140.0 MB in the beginning and 202.9 MB in the end (delta: 62.9 MB). Free memory was 101.8 MB in the beginning and 168.8 MB in the end (delta: -67.0 MB). Peak memory consumption was 25.3 MB. Max. memory is 7.1 GB. [2020-08-21 18:10:24,683 INFO L168 Benchmark]: Boogie Preprocessor took 69.44 ms. Allocated memory is still 202.9 MB. Free memory was 168.8 MB in the beginning and 166.2 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2020-08-21 18:10:24,683 INFO L168 Benchmark]: RCFGBuilder took 665.24 ms. Allocated memory is still 202.9 MB. Free memory was 166.2 MB in the beginning and 118.2 MB in the end (delta: 47.9 MB). Peak memory consumption was 47.9 MB. Max. memory is 7.1 GB. [2020-08-21 18:10:24,684 INFO L168 Benchmark]: TraceAbstraction took 658.93 ms. Allocated memory was 202.9 MB in the beginning and 237.0 MB in the end (delta: 34.1 MB). Free memory was 117.6 MB in the beginning and 195.7 MB in the end (delta: -78.2 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-08-21 18:10:24,689 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 140.0 MB. Free memory was 121.6 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 676.59 ms. Allocated memory was 140.0 MB in the beginning and 202.9 MB in the end (delta: 62.9 MB). Free memory was 101.8 MB in the beginning and 168.8 MB in the end (delta: -67.0 MB). Peak memory consumption was 25.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 69.44 ms. Allocated memory is still 202.9 MB. Free memory was 168.8 MB in the beginning and 166.2 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 665.24 ms. Allocated memory is still 202.9 MB. Free memory was 166.2 MB in the beginning and 118.2 MB in the end (delta: 47.9 MB). Peak memory consumption was 47.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 658.93 ms. Allocated memory was 202.9 MB in the beginning and 237.0 MB in the end (delta: 34.1 MB). Free memory was 117.6 MB in the beginning and 195.7 MB in the end (delta: -78.2 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 557]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L521] int i = 0; [L522] int y = 0; [L523] List a = (List) malloc(sizeof(struct node)); [L524] COND FALSE !(a == 0) [L525] List t; [L526] List p = a; [L527] i < 10 && __VERIFIER_nondet_int() [L527] i < 10 && __VERIFIER_nondet_int() [L527] COND FALSE !(i < 10 && __VERIFIER_nondet_int()) [L535] y < 10 && __VERIFIER_nondet_int() [L535] y < 10 && __VERIFIER_nondet_int() [L535] COND FALSE !(y < 10 && __VERIFIER_nondet_int()) [L543] p->h = 3 [L544] p->n = 0 [L545] i = 0 [L546] y = 0 [L547] p = a [L548] EXPR p->h [L548] COND FALSE !(p->h == 1) [L552] EXPR p->h [L552] COND FALSE !(p->h == 2) [L556] EXPR p->h [L556] COND TRUE p->h != 3 || (i + y) < 20 [L557] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 56 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 47 SDtfs, 2 SDslu, 4 SDs, 0 SdLazy, 40 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=40occurred 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 38 NumberOfCodeBlocks, 38 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 15 ConstructedInterpolants, 0 QuantifiedInterpolants, 360 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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...