/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDEST --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 0.1.25-177f698 [2020-08-21 22:17:55,315 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-21 22:17:55,318 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-21 22:17:55,356 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-21 22:17:55,356 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-21 22:17:55,364 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-21 22:17:55,367 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-21 22:17:55,370 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-21 22:17:55,372 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-21 22:17:55,375 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-21 22:17:55,376 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-21 22:17:55,377 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-21 22:17:55,377 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-21 22:17:55,379 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-21 22:17:55,381 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-21 22:17:55,383 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-21 22:17:55,384 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-21 22:17:55,385 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-21 22:17:55,386 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-21 22:17:55,394 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-21 22:17:55,396 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-21 22:17:55,397 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-21 22:17:55,398 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-21 22:17:55,398 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-21 22:17:55,410 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-21 22:17:55,410 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-21 22:17:55,410 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-21 22:17:55,411 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-21 22:17:55,411 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-21 22:17:55,416 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-21 22:17:55,416 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-21 22:17:55,417 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-21 22:17:55,418 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-21 22:17:55,418 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-21 22:17:55,422 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-21 22:17:55,422 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-21 22:17:55,423 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-21 22:17:55,423 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-21 22:17:55,423 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-21 22:17:55,426 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-21 22:17:55,427 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-21 22:17:55,428 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-08-21 22:17:55,468 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-21 22:17:55,469 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-21 22:17:55,470 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-21 22:17:55,471 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-21 22:17:55,471 INFO L138 SettingsManager]: * Use SBE=true [2020-08-21 22:17:55,471 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-21 22:17:55,471 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-21 22:17:55,471 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-21 22:17:55,472 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-21 22:17:55,472 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-21 22:17:55,472 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-21 22:17:55,472 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-21 22:17:55,472 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-21 22:17:55,473 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-21 22:17:55,474 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-21 22:17:55,474 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-21 22:17:55,474 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-21 22:17:55,474 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-21 22:17:55,475 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-21 22:17:55,475 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-21 22:17:55,475 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-21 22:17:55,475 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-21 22:17:55,475 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-21 22:17:55,476 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-21 22:17:55,476 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-21 22:17:55,476 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-21 22:17:55,476 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-21 22:17:55,476 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-21 22:17:55,477 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-21 22:17:55,477 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; [2020-08-21 22:17:55,799 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-21 22:17:55,818 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-21 22:17:55,822 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-21 22:17:55,824 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-21 22:17:55,825 INFO L275 PluginConnector]: CDTParser initialized [2020-08-21 22:17:55,825 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/matrix-2.c [2020-08-21 22:17:55,886 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c4ade25b8/d309065e15a04bf9b95d0f7a587e1d3d/FLAGc7ba5a222 [2020-08-21 22:17:56,310 INFO L306 CDTParser]: Found 1 translation units. [2020-08-21 22:17:56,310 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loops/matrix-2.c [2020-08-21 22:17:56,315 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c4ade25b8/d309065e15a04bf9b95d0f7a587e1d3d/FLAGc7ba5a222 [2020-08-21 22:17:56,696 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c4ade25b8/d309065e15a04bf9b95d0f7a587e1d3d [2020-08-21 22:17:56,705 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-21 22:17:56,707 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-21 22:17:56,708 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-21 22:17:56,708 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-21 22:17:56,712 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-21 22:17:56,714 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 10:17:56" (1/1) ... [2020-08-21 22:17:56,717 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@490952e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 10:17:56, skipping insertion in model container [2020-08-21 22:17:56,717 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 10:17:56" (1/1) ... [2020-08-21 22:17:56,726 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-21 22:17:56,746 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-21 22:17:56,941 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 22:17:56,945 INFO L203 MainTranslator]: Completed pre-run [2020-08-21 22:17:56,969 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 22:17:56,986 INFO L208 MainTranslator]: Completed translation [2020-08-21 22:17:56,987 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 10:17:56 WrapperNode [2020-08-21 22:17:56,987 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-21 22:17:56,988 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-21 22:17:56,988 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-21 22:17:56,988 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-21 22:17:57,082 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 10:17:56" (1/1) ... [2020-08-21 22:17:57,083 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 10:17:56" (1/1) ... [2020-08-21 22:17:57,091 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 10:17:56" (1/1) ... [2020-08-21 22:17:57,092 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 10:17:56" (1/1) ... [2020-08-21 22:17:57,100 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 10:17:56" (1/1) ... [2020-08-21 22:17:57,106 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 10:17:56" (1/1) ... [2020-08-21 22:17:57,107 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 10:17:56" (1/1) ... [2020-08-21 22:17:57,109 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-21 22:17:57,110 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-21 22:17:57,110 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-21 22:17:57,110 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-21 22:17:57,111 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 10:17:56" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-21 22:17:57,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-21 22:17:57,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-21 22:17:57,165 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-08-21 22:17:57,165 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-21 22:17:57,165 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-21 22:17:57,165 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-08-21 22:17:57,166 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-08-21 22:17:57,166 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-21 22:17:57,166 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-21 22:17:57,166 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-21 22:17:57,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-21 22:17:57,166 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-21 22:17:57,167 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-21 22:17:57,167 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-21 22:17:57,167 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-21 22:17:57,448 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-21 22:17:57,449 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-08-21 22:17:57,453 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 10:17:57 BoogieIcfgContainer [2020-08-21 22:17:57,454 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-21 22:17:57,455 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-21 22:17:57,455 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-21 22:17:57,458 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-21 22:17:57,458 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.08 10:17:56" (1/3) ... [2020-08-21 22:17:57,459 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11df5749 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 10:17:57, skipping insertion in model container [2020-08-21 22:17:57,459 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 10:17:56" (2/3) ... [2020-08-21 22:17:57,459 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11df5749 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 10:17:57, skipping insertion in model container [2020-08-21 22:17:57,460 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 10:17:57" (3/3) ... [2020-08-21 22:17:57,461 INFO L109 eAbstractionObserver]: Analyzing ICFG matrix-2.c [2020-08-21 22:17:57,473 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-21 22:17:57,481 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-21 22:17:57,495 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-21 22:17:57,513 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-21 22:17:57,513 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-21 22:17:57,513 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-21 22:17:57,513 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-21 22:17:57,514 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-21 22:17:57,514 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-21 22:17:57,514 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-21 22:17:57,514 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-21 22:17:57,530 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2020-08-21 22:17:57,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-08-21 22:17:57,536 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 22:17:57,537 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 22:17:57,537 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 22:17:57,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 22:17:57,542 INFO L82 PathProgramCache]: Analyzing trace with hash -2125374060, now seen corresponding path program 1 times [2020-08-21 22:17:57,548 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 22:17:57,549 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [201066015] [2020-08-21 22:17:57,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 22:17:57,637 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-08-21 22:17:57,638 WARN L168 FreeRefinementEngine]: Strategy FIXED_PREFERENCES was unsuccessful and could not determine trace feasibility [2020-08-21 22:17:57,638 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-21 22:17:57,643 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-21 22:17:57,658 WARN L231 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-08-21 22:17:57,658 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.08 10:17:57 BoogieIcfgContainer [2020-08-21 22:17:57,658 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-21 22:17:57,662 INFO L168 Benchmark]: Toolchain (without parser) took 953.38 ms. Allocated memory was 148.4 MB in the beginning and 203.9 MB in the end (delta: 55.6 MB). Free memory was 103.0 MB in the beginning and 152.4 MB in the end (delta: -49.4 MB). Peak memory consumption was 6.2 MB. Max. memory is 7.1 GB. [2020-08-21 22:17:57,663 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 148.4 MB. Free memory was 121.6 MB in the beginning and 121.4 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-08-21 22:17:57,663 INFO L168 Benchmark]: CACSL2BoogieTranslator took 279.55 ms. Allocated memory is still 148.4 MB. Free memory was 102.6 MB in the beginning and 92.3 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. [2020-08-21 22:17:57,665 INFO L168 Benchmark]: Boogie Preprocessor took 121.60 ms. Allocated memory was 148.4 MB in the beginning and 203.9 MB in the end (delta: 55.6 MB). Free memory was 92.3 MB in the beginning and 181.2 MB in the end (delta: -89.0 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. [2020-08-21 22:17:57,666 INFO L168 Benchmark]: RCFGBuilder took 343.97 ms. Allocated memory is still 203.9 MB. Free memory was 181.2 MB in the beginning and 164.4 MB in the end (delta: 16.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 7.1 GB. [2020-08-21 22:17:57,667 INFO L168 Benchmark]: TraceAbstraction took 203.87 ms. Allocated memory is still 203.9 MB. Free memory was 163.8 MB in the beginning and 152.4 MB in the end (delta: 11.4 MB). Peak memory consumption was 11.4 MB. Max. memory is 7.1 GB. [2020-08-21 22:17:57,671 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 148.4 MB. Free memory was 121.6 MB in the beginning and 121.4 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 279.55 ms. Allocated memory is still 148.4 MB. Free memory was 102.6 MB in the beginning and 92.3 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 121.60 ms. Allocated memory was 148.4 MB in the beginning and 203.9 MB in the end (delta: 55.6 MB). Free memory was 92.3 MB in the beginning and 181.2 MB in the end (delta: -89.0 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 343.97 ms. Allocated memory is still 203.9 MB. Free memory was 181.2 MB in the beginning and 164.4 MB in the end (delta: 16.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 203.87 ms. Allocated memory is still 203.9 MB. Free memory was 163.8 MB in the beginning and 152.4 MB in the end (delta: 11.4 MB). Peak memory consumption was 11.4 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 [L29] j=0 [L29] COND TRUE j