/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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 SequenceOfStatements --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=DEEPEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/array-multidimensional/min-3-n-u.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 14:51:09,326 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 14:51:09,329 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 14:51:09,365 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 14:51:09,366 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 14:51:09,367 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 14:51:09,369 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 14:51:09,371 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 14:51:09,374 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 14:51:09,375 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 14:51:09,376 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 14:51:09,378 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 14:51:09,378 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 14:51:09,379 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 14:51:09,381 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 14:51:09,382 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 14:51:09,383 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 14:51:09,384 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 14:51:09,387 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 14:51:09,417 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 14:51:09,425 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 14:51:09,427 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 14:51:09,441 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 14:51:09,442 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 14:51:09,450 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 14:51:09,451 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 14:51:09,451 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 14:51:09,452 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 14:51:09,453 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 14:51:09,454 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 14:51:09,454 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 14:51:09,458 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 14:51:09,459 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 14:51:09,460 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 14:51:09,461 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 14:51:09,461 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 14:51:09,462 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 14:51:09,463 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 14:51:09,463 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 14:51:09,464 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 14:51:09,465 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 14:51:09,466 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 [2020-10-27 14:51:09,493 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 14:51:09,493 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 14:51:09,495 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 14:51:09,495 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 14:51:09,496 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 14:51:09,496 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 14:51:09,496 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 14:51:09,497 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 14:51:09,497 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 14:51:09,497 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 14:51:09,497 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 14:51:09,498 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 14:51:09,498 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 14:51:09,498 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 14:51:09,498 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 14:51:09,499 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 14:51:09,499 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 14:51:09,499 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 14:51:09,499 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 14:51:09,500 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 14:51:09,500 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 14:51:09,500 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 14:51:09,501 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 14:51:09,501 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 14:51:09,501 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 14:51:09,501 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 14:51:09,502 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 14:51:09,502 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 14:51:09,502 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 14:51:09,502 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 14:51:09,853 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 14:51:09,892 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 14:51:09,896 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 14:51:09,897 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 14:51:09,898 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 14:51:09,899 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-multidimensional/min-3-n-u.c [2020-10-27 14:51:09,985 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e3654fe38/a5ac30a136c343d7a12dfdf0e045cf00/FLAG75fdb951b [2020-10-27 14:51:10,529 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 14:51:10,529 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-multidimensional/min-3-n-u.c [2020-10-27 14:51:10,538 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e3654fe38/a5ac30a136c343d7a12dfdf0e045cf00/FLAG75fdb951b [2020-10-27 14:51:10,925 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e3654fe38/a5ac30a136c343d7a12dfdf0e045cf00 [2020-10-27 14:51:10,928 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 14:51:10,935 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 14:51:10,938 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 14:51:10,938 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 14:51:10,943 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 14:51:10,944 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 02:51:10" (1/1) ... [2020-10-27 14:51:10,948 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@dc501ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:51:10, skipping insertion in model container [2020-10-27 14:51:10,948 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 02:51:10" (1/1) ... [2020-10-27 14:51:10,956 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 14:51:10,988 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 14:51:11,212 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 14:51:11,226 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 14:51:11,279 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 14:51:11,300 INFO L208 MainTranslator]: Completed translation [2020-10-27 14:51:11,301 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:51:11 WrapperNode [2020-10-27 14:51:11,301 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 14:51:11,302 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 14:51:11,302 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 14:51:11,302 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 14:51:11,353 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:51:11" (1/1) ... [2020-10-27 14:51:11,354 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:51:11" (1/1) ... [2020-10-27 14:51:11,371 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:51:11" (1/1) ... [2020-10-27 14:51:11,372 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:51:11" (1/1) ... [2020-10-27 14:51:11,399 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:51:11" (1/1) ... [2020-10-27 14:51:11,409 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:51:11" (1/1) ... [2020-10-27 14:51:11,411 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:51:11" (1/1) ... [2020-10-27 14:51:11,414 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 14:51:11,415 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 14:51:11,415 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 14:51:11,415 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 14:51:11,416 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:51:11" (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 [2020-10-27 14:51:11,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 14:51:11,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 14:51:11,501 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 14:51:11,501 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-27 14:51:11,502 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 14:51:11,502 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 14:51:11,502 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 14:51:11,502 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 14:51:11,502 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 14:51:11,503 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-27 14:51:11,503 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-27 14:51:11,503 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 14:51:11,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 14:51:11,503 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 14:51:11,503 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 14:51:11,504 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 14:51:11,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 14:51:11,504 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 14:51:11,865 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 14:51:11,865 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-10-27 14:51:11,866 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 02:51:11 BoogieIcfgContainer [2020-10-27 14:51:11,867 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 14:51:11,868 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 14:51:11,869 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 14:51:11,872 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 14:51:11,872 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 02:51:10" (1/3) ... [2020-10-27 14:51:11,873 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71301711 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 02:51:11, skipping insertion in model container [2020-10-27 14:51:11,873 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:51:11" (2/3) ... [2020-10-27 14:51:11,873 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71301711 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 02:51:11, skipping insertion in model container [2020-10-27 14:51:11,873 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 02:51:11" (3/3) ... [2020-10-27 14:51:11,875 INFO L111 eAbstractionObserver]: Analyzing ICFG min-3-n-u.c [2020-10-27 14:51:11,888 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 14:51:11,893 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 14:51:11,907 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 14:51:11,934 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 14:51:11,935 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 14:51:11,935 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 14:51:11,935 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 14:51:11,935 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 14:51:11,935 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 14:51:11,935 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 14:51:11,936 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 14:51:11,953 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2020-10-27 14:51:11,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-27 14:51:11,959 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 14:51:11,960 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 14:51:11,960 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 14:51:11,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 14:51:11,967 INFO L82 PathProgramCache]: Analyzing trace with hash -474447319, now seen corresponding path program 1 times [2020-10-27 14:51:11,980 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 14:51:11,981 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [508340521] [2020-10-27 14:51:11,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 14:51:12,102 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-10-27 14:51:12,103 WARN L167 FreeRefinementEngine]: Strategy FIXED_PREFERENCES was unsuccessful and could not determine trace feasibility [2020-10-27 14:51:12,103 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-27 14:51:12,108 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 14:51:12,123 WARN L238 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-10-27 14:51:12,124 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 02:51:12 BoogieIcfgContainer [2020-10-27 14:51:12,124 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-27 14:51:12,127 INFO L168 Benchmark]: Toolchain (without parser) took 1195.06 ms. Allocated memory is still 160.4 MB. Free memory was 143.5 MB in the beginning and 112.4 MB in the end (delta: 31.1 MB). Peak memory consumption was 29.8 MB. Max. memory is 8.0 GB. [2020-10-27 14:51:12,127 INFO L168 Benchmark]: CDTParser took 0.64 ms. Allocated memory is still 160.4 MB. Free memory is still 132.2 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 14:51:12,128 INFO L168 Benchmark]: CACSL2BoogieTranslator took 363.07 ms. Allocated memory is still 160.4 MB. Free memory was 142.8 MB in the beginning and 132.9 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-10-27 14:51:12,129 INFO L168 Benchmark]: Boogie Preprocessor took 111.75 ms. Allocated memory is still 160.4 MB. Free memory was 132.9 MB in the beginning and 142.4 MB in the end (delta: -9.5 MB). Peak memory consumption was 3.6 MB. Max. memory is 8.0 GB. [2020-10-27 14:51:12,130 INFO L168 Benchmark]: RCFGBuilder took 452.03 ms. Allocated memory is still 160.4 MB. Free memory was 142.2 MB in the beginning and 124.0 MB in the end (delta: 18.2 MB). Peak memory consumption was 17.8 MB. Max. memory is 8.0 GB. [2020-10-27 14:51:12,131 INFO L168 Benchmark]: TraceAbstraction took 255.86 ms. Allocated memory is still 160.4 MB. Free memory was 123.5 MB in the beginning and 112.4 MB in the end (delta: 11.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2020-10-27 14:51:12,135 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.64 ms. Allocated memory is still 160.4 MB. Free memory is still 132.2 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 363.07 ms. Allocated memory is still 160.4 MB. Free memory was 142.8 MB in the beginning and 132.9 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 111.75 ms. Allocated memory is still 160.4 MB. Free memory was 132.9 MB in the beginning and 142.4 MB in the end (delta: -9.5 MB). Peak memory consumption was 3.6 MB. Max. memory is 8.0 GB. * RCFGBuilder took 452.03 ms. Allocated memory is still 160.4 MB. Free memory was 142.2 MB in the beginning and 124.0 MB in the end (delta: 18.2 MB). Peak memory consumption was 17.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 255.86 ms. Allocated memory is still 160.4 MB. Free memory was 123.5 MB in the beginning and 112.4 MB in the end (delta: 11.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L16] int i,j,k; [L17] int m=1000,n=1500,p=1800; [L18] int A [m][n][p]; [L19] int min; [L22] i=0 [L23] j=0 [L24] k=0 [L40] i=0 [L41] j=0 [L42] k=0 [L43] EXPR A [0][0][0] [L43] min=A [0][0][0] [L44] COND FALSE !(i < m) [L62] i=0 [L63] j=0 [L64] k=0 [L65] COND TRUE i < m [L66] j=0 [L67] k=0 [L68] COND TRUE j < n [L69] k=0 [L70] COND TRUE k < p [L71] EXPR A[i][j][k] [L71] CALL __VERIFIER_assert(A[i][j][k]>=min) [L6] COND TRUE !(cond) [L7] CALL reach_error() [L3] __assert_fail("0", "min-3-n-u.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 42 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNKNOWN, OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, 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 could not prove your program: unable to determine feasibility of some traces Received shutdown request...