/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 --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.1 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loops/array-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 10:16:28,769 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 10:16:28,773 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 10:16:28,799 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 10:16:28,799 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 10:16:28,800 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 10:16:28,802 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 10:16:28,804 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 10:16:28,806 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 10:16:28,807 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 10:16:28,808 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 10:16:28,813 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 10:16:28,813 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 10:16:28,815 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 10:16:28,818 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 10:16:28,823 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 10:16:28,824 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 10:16:28,827 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 10:16:28,829 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 10:16:28,831 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 10:16:28,832 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 10:16:28,834 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 10:16:28,835 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 10:16:28,836 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 10:16:28,838 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 10:16:28,839 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 10:16:28,839 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 10:16:28,840 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 10:16:28,840 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 10:16:28,842 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 10:16:28,842 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 10:16:28,843 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 10:16:28,844 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 10:16:28,845 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 10:16:28,846 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 10:16:28,846 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 10:16:28,847 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 10:16:28,847 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 10:16:28,847 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 10:16:28,848 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 10:16:28,849 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 10:16:28,850 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 [2020-09-25 10:16:28,883 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 10:16:28,884 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 10:16:28,885 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 10:16:28,885 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 10:16:28,885 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 10:16:28,886 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 10:16:28,886 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 10:16:28,886 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 10:16:28,886 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 10:16:28,886 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 10:16:28,887 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 10:16:28,887 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 10:16:28,888 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 10:16:28,888 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 10:16:28,888 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 10:16:28,888 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 10:16:28,889 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 10:16:28,889 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 10:16:28,889 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 10:16:28,889 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 10:16:28,890 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 10:16:28,890 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 10:16:28,890 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 10:16:28,890 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 10:16:28,890 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 10:16:28,891 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 10:16:28,891 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 10:16:28,891 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 10:16:28,892 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 10:16:28,892 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.rcfgbuilder: Size of a code block -> SingleStatement 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 -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; [2020-09-25 10:16:29,393 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 10:16:29,419 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 10:16:29,424 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 10:16:29,426 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 10:16:29,428 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 10:16:29,429 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/array-2.c [2020-09-25 10:16:29,514 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bf0d6dca6/0dbc66e99c0543a59d39933373c826b0/FLAG07b53792b [2020-09-25 10:16:30,017 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 10:16:30,018 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loops/array-2.c [2020-09-25 10:16:30,028 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bf0d6dca6/0dbc66e99c0543a59d39933373c826b0/FLAG07b53792b [2020-09-25 10:16:30,356 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bf0d6dca6/0dbc66e99c0543a59d39933373c826b0 [2020-09-25 10:16:30,370 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 10:16:30,376 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 10:16:30,378 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 10:16:30,379 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 10:16:30,383 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 10:16:30,384 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 10:16:30" (1/1) ... [2020-09-25 10:16:30,389 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@187bf361 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:16:30, skipping insertion in model container [2020-09-25 10:16:30,389 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 10:16:30" (1/1) ... [2020-09-25 10:16:30,399 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 10:16:30,425 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 10:16:30,655 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 10:16:30,660 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 10:16:30,688 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 10:16:30,714 INFO L208 MainTranslator]: Completed translation [2020-09-25 10:16:30,715 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:16:30 WrapperNode [2020-09-25 10:16:30,715 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 10:16:30,716 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 10:16:30,716 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 10:16:30,716 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 10:16:30,810 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:16:30" (1/1) ... [2020-09-25 10:16:30,811 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:16:30" (1/1) ... [2020-09-25 10:16:30,822 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:16:30" (1/1) ... [2020-09-25 10:16:30,822 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:16:30" (1/1) ... [2020-09-25 10:16:30,842 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:16:30" (1/1) ... [2020-09-25 10:16:30,850 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:16:30" (1/1) ... [2020-09-25 10:16:30,852 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:16:30" (1/1) ... [2020-09-25 10:16:30,861 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 10:16:30,861 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 10:16:30,861 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 10:16:30,862 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 10:16:30,863 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:16:30" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 10:16:30,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 10:16:30,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 10:16:30,939 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-25 10:16:30,939 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 10:16:30,940 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 10:16:30,940 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-25 10:16:30,940 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 10:16:30,940 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 10:16:30,941 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 10:16:30,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 10:16:30,941 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 10:16:30,941 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 10:16:30,941 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 10:16:30,941 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 10:16:31,264 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 10:16:31,264 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-25 10:16:31,270 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 10:16:31 BoogieIcfgContainer [2020-09-25 10:16:31,270 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 10:16:31,275 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 10:16:31,276 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 10:16:31,280 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 10:16:31,280 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 10:16:30" (1/3) ... [2020-09-25 10:16:31,281 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4206b04d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 10:16:31, skipping insertion in model container [2020-09-25 10:16:31,282 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:16:30" (2/3) ... [2020-09-25 10:16:31,282 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4206b04d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 10:16:31, skipping insertion in model container [2020-09-25 10:16:31,282 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 10:16:31" (3/3) ... [2020-09-25 10:16:31,285 INFO L109 eAbstractionObserver]: Analyzing ICFG array-2.c [2020-09-25 10:16:31,297 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 10:16:31,308 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 10:16:31,328 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 10:16:31,357 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 10:16:31,357 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 10:16:31,357 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 10:16:31,357 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 10:16:31,357 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 10:16:31,358 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 10:16:31,358 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 10:16:31,358 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 10:16:31,381 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2020-09-25 10:16:31,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-09-25 10:16:31,388 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:16:31,389 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] [2020-09-25 10:16:31,390 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:16:31,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:16:31,396 INFO L82 PathProgramCache]: Analyzing trace with hash 683487989, now seen corresponding path program 1 times [2020-09-25 10:16:31,406 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:16:31,406 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1754842671] [2020-09-25 10:16:31,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:16:31,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:16:31,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:16:31,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:16:31,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 10:16:31,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:16:31,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 339 [2020-09-25 10:16:31,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:16:31,927 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:16:31,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 10:16:31,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 10:16:31,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 10:16:31,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 10:16:32,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:16:32,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:16:32,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:16:32,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:16:32,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:16:32,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:16:32,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-25 10:16:32,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:16:32,248 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:16:32,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:16:32,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:16:32,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:16:32,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 10:16:32,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 10:16:32,282 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1754842671] [2020-09-25 10:16:32,284 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:16:32,285 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 10:16:32,287 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864148084] [2020-09-25 10:16:32,294 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 10:16:32,295 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:16:32,314 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 10:16:32,315 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 10:16:32,318 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 5 states. [2020-09-25 10:16:32,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:16:32,596 INFO L93 Difference]: Finished difference Result 75 states and 82 transitions. [2020-09-25 10:16:32,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 10:16:32,599 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2020-09-25 10:16:32,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:16:32,610 INFO L225 Difference]: With dead ends: 75 [2020-09-25 10:16:32,610 INFO L226 Difference]: Without dead ends: 49 [2020-09-25 10:16:32,615 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-25 10:16:32,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2020-09-25 10:16:32,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 37. [2020-09-25 10:16:32,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-09-25 10:16:32,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 38 transitions. [2020-09-25 10:16:32,663 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 38 transitions. Word has length 22 [2020-09-25 10:16:32,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:16:32,663 INFO L479 AbstractCegarLoop]: Abstraction has 37 states and 38 transitions. [2020-09-25 10:16:32,663 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 10:16:32,664 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 38 transitions. [2020-09-25 10:16:32,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-09-25 10:16:32,665 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:16:32,666 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:16:32,666 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 10:16:32,666 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:16:32,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:16:32,667 INFO L82 PathProgramCache]: Analyzing trace with hash 403649603, now seen corresponding path program 1 times [2020-09-25 10:16:32,667 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:16:32,668 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [212041010] [2020-09-25 10:16:32,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:16:32,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:16:32,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:16:32,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:16:33,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:16:33,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 10:16:33,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 10:16:33,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 890 [2020-09-25 10:16:33,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:16:33,594 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:16:33,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 10:16:33,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 10:16:33,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-25 10:16:33,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 10:16:33,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:16:33,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:16:33,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:16:33,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:16:33,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:16:33,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:16:33,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 10:16:33,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:16:33,785 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:16:33,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:16:33,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:16:33,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:16:33,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:16:33,793 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 10:16:33,794 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [212041010] [2020-09-25 10:16:33,794 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 10:16:33,794 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 10:16:33,795 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917581851] [2020-09-25 10:16:33,797 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 10:16:33,798 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:16:33,798 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 10:16:33,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2020-09-25 10:16:33,799 INFO L87 Difference]: Start difference. First operand 37 states and 38 transitions. Second operand 10 states. [2020-09-25 10:16:34,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:16:34,198 INFO L93 Difference]: Finished difference Result 49 states and 50 transitions. [2020-09-25 10:16:34,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 10:16:34,199 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 32 [2020-09-25 10:16:34,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:16:34,201 INFO L225 Difference]: With dead ends: 49 [2020-09-25 10:16:34,201 INFO L226 Difference]: Without dead ends: 43 [2020-09-25 10:16:34,203 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=68, Invalid=274, Unknown=0, NotChecked=0, Total=342 [2020-09-25 10:16:34,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2020-09-25 10:16:34,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 40. [2020-09-25 10:16:34,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-09-25 10:16:34,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 41 transitions. [2020-09-25 10:16:34,211 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 41 transitions. Word has length 32 [2020-09-25 10:16:34,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:16:34,212 INFO L479 AbstractCegarLoop]: Abstraction has 40 states and 41 transitions. [2020-09-25 10:16:34,212 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 10:16:34,212 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 41 transitions. [2020-09-25 10:16:34,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-09-25 10:16:34,213 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:16:34,214 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:16:34,214 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 10:16:34,214 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:16:34,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:16:34,215 INFO L82 PathProgramCache]: Analyzing trace with hash -913737726, now seen corresponding path program 1 times [2020-09-25 10:16:34,215 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:16:34,216 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2048759873] [2020-09-25 10:16:34,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:16:34,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 10:16:34,239 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 10:16:34,239 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 10:16:34,244 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 10:16:34,282 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 10:16:34 BoogieIcfgContainer [2020-09-25 10:16:34,282 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 10:16:34,289 INFO L168 Benchmark]: Toolchain (without parser) took 3912.75 ms. Allocated memory was 140.5 MB in the beginning and 233.8 MB in the end (delta: 93.3 MB). Free memory was 103.6 MB in the beginning and 85.3 MB in the end (delta: 18.3 MB). Peak memory consumption was 111.6 MB. Max. memory is 7.1 GB. [2020-09-25 10:16:34,291 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-09-25 10:16:34,292 INFO L168 Benchmark]: CACSL2BoogieTranslator took 337.04 ms. Allocated memory is still 140.5 MB. Free memory was 103.0 MB in the beginning and 93.1 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. [2020-09-25 10:16:34,297 INFO L168 Benchmark]: Boogie Preprocessor took 145.15 ms. Allocated memory was 140.5 MB in the beginning and 202.4 MB in the end (delta: 61.9 MB). Free memory was 93.1 MB in the beginning and 180.4 MB in the end (delta: -87.3 MB). Peak memory consumption was 12.7 MB. Max. memory is 7.1 GB. [2020-09-25 10:16:34,298 INFO L168 Benchmark]: RCFGBuilder took 408.84 ms. Allocated memory is still 202.4 MB. Free memory was 180.4 MB in the beginning and 164.0 MB in the end (delta: 16.3 MB). Peak memory consumption was 16.3 MB. Max. memory is 7.1 GB. [2020-09-25 10:16:34,298 INFO L168 Benchmark]: TraceAbstraction took 3007.73 ms. Allocated memory was 202.4 MB in the beginning and 233.8 MB in the end (delta: 31.5 MB). Free memory was 163.4 MB in the beginning and 85.3 MB in the end (delta: 78.1 MB). Peak memory consumption was 109.5 MB. Max. memory is 7.1 GB. [2020-09-25 10:16:34,304 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 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 337.04 ms. Allocated memory is still 140.5 MB. Free memory was 103.0 MB in the beginning and 93.1 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 145.15 ms. Allocated memory was 140.5 MB in the beginning and 202.4 MB in the end (delta: 61.9 MB). Free memory was 93.1 MB in the beginning and 180.4 MB in the end (delta: -87.3 MB). Peak memory consumption was 12.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 408.84 ms. Allocated memory is still 202.4 MB. Free memory was 180.4 MB in the beginning and 164.0 MB in the end (delta: 16.3 MB). Peak memory consumption was 16.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3007.73 ms. Allocated memory was 202.4 MB in the beginning and 233.8 MB in the end (delta: 31.5 MB). Free memory was 163.4 MB in the beginning and 85.3 MB in the end (delta: 78.1 MB). Peak memory consumption was 109.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 5]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L13] unsigned int SIZE=1; [L14] unsigned int j,k; [L15] int array[SIZE], menor; [L17] menor = __VERIFIER_nondet_int() [L19] j=0 [L19] COND TRUE jmenor) [L4] COND TRUE !(cond) [L5] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 46 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.8s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 67 SDtfs, 105 SDslu, 165 SDs, 0 SdLazy, 210 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46occurred 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, 2 MinimizatonAttempts, 15 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 89 NumberOfCodeBlocks, 89 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 52 ConstructedInterpolants, 0 QuantifiedInterpolants, 8648 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 0/1 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...