/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=DEEPEST --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/matrix-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 01:09:34,877 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 01:09:34,882 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 01:09:34,913 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 01:09:34,913 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 01:09:34,915 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 01:09:34,917 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 01:09:34,919 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 01:09:34,921 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 01:09:34,922 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 01:09:34,924 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 01:09:34,925 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 01:09:34,925 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 01:09:34,927 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 01:09:34,928 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 01:09:34,929 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 01:09:34,930 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 01:09:34,932 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 01:09:34,934 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 01:09:34,936 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 01:09:34,938 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 01:09:34,940 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 01:09:34,942 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 01:09:34,943 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 01:09:34,946 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 01:09:34,946 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 01:09:34,946 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 01:09:34,948 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 01:09:34,948 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 01:09:34,949 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 01:09:34,950 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 01:09:34,951 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 01:09:34,952 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 01:09:34,953 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 01:09:34,954 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 01:09:34,954 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 01:09:34,955 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 01:09:34,956 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 01:09:34,956 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 01:09:34,957 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 01:09:34,958 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 01:09:34,959 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 01:09:34,987 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 01:09:34,988 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 01:09:34,989 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 01:09:34,989 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 01:09:34,989 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 01:09:34,990 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 01:09:34,990 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 01:09:34,990 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 01:09:34,990 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 01:09:34,990 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 01:09:34,991 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 01:09:34,991 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 01:09:34,991 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 01:09:34,991 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 01:09:34,991 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 01:09:34,992 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 01:09:34,992 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 01:09:34,992 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 01:09:34,992 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 01:09:34,992 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 01:09:34,993 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 01:09:34,993 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 01:09:34,993 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 01:09:34,993 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 01:09:34,994 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 01:09:34,994 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 01:09:34,994 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 01:09:34,994 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 01:09:34,994 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 01:09:34,995 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=DEEPEST;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=DEEPEST;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=DEEPEST;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=DEEPEST;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=DEEPEST;log-additional-information=true; [2020-09-25 01:09:35,518 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 01:09:35,536 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 01:09:35,541 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 01:09:35,543 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 01:09:35,543 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 01:09:35,545 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/matrix-2.c [2020-09-25 01:09:35,655 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/85dfb8aba/ef03de34e9184c178f1b7bb2390e5016/FLAGefc6855df [2020-09-25 01:09:36,244 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 01:09:36,245 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loops/matrix-2.c [2020-09-25 01:09:36,253 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/85dfb8aba/ef03de34e9184c178f1b7bb2390e5016/FLAGefc6855df [2020-09-25 01:09:36,636 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/85dfb8aba/ef03de34e9184c178f1b7bb2390e5016 [2020-09-25 01:09:36,662 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 01:09:36,668 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 01:09:36,669 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 01:09:36,669 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 01:09:36,674 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 01:09:36,675 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:09:36" (1/1) ... [2020-09-25 01:09:36,680 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2627f451 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:09:36, skipping insertion in model container [2020-09-25 01:09:36,680 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:09:36" (1/1) ... [2020-09-25 01:09:36,690 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 01:09:36,716 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 01:09:36,949 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 01:09:36,955 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 01:09:36,987 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 01:09:37,008 INFO L208 MainTranslator]: Completed translation [2020-09-25 01:09:37,009 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:09:37 WrapperNode [2020-09-25 01:09:37,009 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 01:09:37,010 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 01:09:37,010 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 01:09:37,011 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 01:09:37,119 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:09:37" (1/1) ... [2020-09-25 01:09:37,119 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:09:37" (1/1) ... [2020-09-25 01:09:37,130 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:09:37" (1/1) ... [2020-09-25 01:09:37,131 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:09:37" (1/1) ... [2020-09-25 01:09:37,155 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:09:37" (1/1) ... [2020-09-25 01:09:37,164 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:09:37" (1/1) ... [2020-09-25 01:09:37,167 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:09:37" (1/1) ... [2020-09-25 01:09:37,183 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 01:09:37,183 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 01:09:37,184 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 01:09:37,184 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 01:09:37,185 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:09:37" (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 01:09:37,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 01:09:37,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 01:09:37,255 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-25 01:09:37,256 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 01:09:37,256 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 01:09:37,256 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-25 01:09:37,256 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-09-25 01:09:37,257 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 01:09:37,265 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 01:09:37,265 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 01:09:37,265 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 01:09:37,265 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 01:09:37,266 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 01:09:37,266 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 01:09:37,266 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 01:09:37,653 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 01:09:37,654 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-09-25 01:09:37,660 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:09:37 BoogieIcfgContainer [2020-09-25 01:09:37,660 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 01:09:37,661 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 01:09:37,661 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 01:09:37,665 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 01:09:37,665 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 01:09:36" (1/3) ... [2020-09-25 01:09:37,666 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@626e065 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:09:37, skipping insertion in model container [2020-09-25 01:09:37,666 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:09:37" (2/3) ... [2020-09-25 01:09:37,667 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@626e065 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:09:37, skipping insertion in model container [2020-09-25 01:09:37,667 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:09:37" (3/3) ... [2020-09-25 01:09:37,669 INFO L109 eAbstractionObserver]: Analyzing ICFG matrix-2.c [2020-09-25 01:09:37,685 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 01:09:37,696 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 01:09:37,719 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 01:09:37,750 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 01:09:37,750 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 01:09:37,750 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 01:09:37,750 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 01:09:37,751 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 01:09:37,751 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 01:09:37,751 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 01:09:37,751 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 01:09:37,798 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states. [2020-09-25 01:09:37,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-09-25 01:09:37,810 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:09:37,812 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] [2020-09-25 01:09:37,812 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:09:37,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:09:37,822 INFO L82 PathProgramCache]: Analyzing trace with hash 1292931923, now seen corresponding path program 1 times [2020-09-25 01:09:37,834 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:09:37,835 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [967281416] [2020-09-25 01:09:37,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:09:38,026 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-09-25 01:09:38,027 WARN L168 FreeRefinementEngine]: Strategy FIXED_PREFERENCES was unsuccessful and could not determine trace feasibility [2020-09-25 01:09:38,027 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 01:09:38,032 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 01:09:38,050 WARN L231 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-09-25 01:09:38,050 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 01:09:38 BoogieIcfgContainer [2020-09-25 01:09:38,050 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 01:09:38,055 INFO L168 Benchmark]: Toolchain (without parser) took 1388.76 ms. Allocated memory was 146.3 MB in the beginning and 202.9 MB in the end (delta: 56.6 MB). Free memory was 101.5 MB in the beginning and 148.3 MB in the end (delta: -46.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. [2020-09-25 01:09:38,056 INFO L168 Benchmark]: CDTParser took 0.38 ms. Allocated memory is still 146.3 MB. Free memory was 119.6 MB in the beginning and 119.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-25 01:09:38,057 INFO L168 Benchmark]: CACSL2BoogieTranslator took 340.79 ms. Allocated memory is still 146.3 MB. Free memory was 100.9 MB in the beginning and 90.4 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. [2020-09-25 01:09:38,059 INFO L168 Benchmark]: Boogie Preprocessor took 172.92 ms. Allocated memory was 146.3 MB in the beginning and 202.9 MB in the end (delta: 56.6 MB). Free memory was 90.4 MB in the beginning and 179.9 MB in the end (delta: -89.5 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. [2020-09-25 01:09:38,060 INFO L168 Benchmark]: RCFGBuilder took 476.71 ms. Allocated memory is still 202.9 MB. Free memory was 179.9 MB in the beginning and 160.8 MB in the end (delta: 19.1 MB). Peak memory consumption was 19.1 MB. Max. memory is 7.1 GB. [2020-09-25 01:09:38,062 INFO L168 Benchmark]: TraceAbstraction took 389.50 ms. Allocated memory is still 202.9 MB. Free memory was 160.2 MB in the beginning and 148.3 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 7.1 GB. [2020-09-25 01:09:38,069 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38 ms. Allocated memory is still 146.3 MB. Free memory was 119.6 MB in the beginning and 119.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 340.79 ms. Allocated memory is still 146.3 MB. Free memory was 100.9 MB in the beginning and 90.4 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 172.92 ms. Allocated memory was 146.3 MB in the beginning and 202.9 MB in the end (delta: 56.6 MB). Free memory was 90.4 MB in the beginning and 179.9 MB in the end (delta: -89.5 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 476.71 ms. Allocated memory is still 202.9 MB. Free memory was 179.9 MB in the beginning and 160.8 MB in the end (delta: 19.1 MB). Peak memory consumption was 19.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 389.50 ms. Allocated memory is still 202.9 MB. Free memory was 160.2 MB in the beginning and 148.3 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 5]: 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: [L14] unsigned int N_LIN=__VERIFIER_nondet_uint(); [L15] unsigned int N_COL=__VERIFIER_nondet_uint(); [L16] unsigned int j,k; [L17] int matriz[N_COL][N_LIN], maior; [L19] maior = __VERIFIER_nondet_int() [L20] j=0 [L20] COND FALSE !(j