/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=SHALLOWEST --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 0.1.25-89f541c [2020-08-28 01:24:11,785 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-28 01:24:11,789 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-28 01:24:11,815 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-28 01:24:11,815 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-28 01:24:11,817 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-28 01:24:11,818 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-28 01:24:11,820 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-28 01:24:11,822 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-28 01:24:11,823 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-28 01:24:11,824 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-28 01:24:11,825 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-28 01:24:11,826 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-28 01:24:11,827 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-28 01:24:11,828 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-28 01:24:11,829 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-28 01:24:11,830 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-28 01:24:11,832 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-28 01:24:11,833 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-28 01:24:11,835 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-28 01:24:11,837 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-28 01:24:11,838 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-28 01:24:11,839 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-28 01:24:11,840 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-28 01:24:11,843 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-28 01:24:11,843 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-28 01:24:11,843 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-28 01:24:11,844 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-28 01:24:11,845 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-28 01:24:11,846 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-28 01:24:11,846 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-28 01:24:11,847 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-28 01:24:11,848 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-28 01:24:11,849 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-28 01:24:11,850 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-28 01:24:11,850 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-28 01:24:11,851 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-28 01:24:11,852 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-28 01:24:11,852 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-28 01:24:11,853 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-28 01:24:11,854 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-28 01:24:11,855 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 [2020-08-28 01:24:11,881 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-28 01:24:11,882 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-28 01:24:11,883 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-28 01:24:11,883 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-28 01:24:11,883 INFO L138 SettingsManager]: * Use SBE=true [2020-08-28 01:24:11,884 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-28 01:24:11,884 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-28 01:24:11,884 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-28 01:24:11,884 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-28 01:24:11,884 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-28 01:24:11,885 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-28 01:24:11,885 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-28 01:24:11,885 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-28 01:24:11,885 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-28 01:24:11,885 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-28 01:24:11,886 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-28 01:24:11,886 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-28 01:24:11,886 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-28 01:24:11,886 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-28 01:24:11,886 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-28 01:24:11,887 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-28 01:24:11,887 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-28 01:24:11,887 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-28 01:24:11,887 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-28 01:24:11,888 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-28 01:24:11,888 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-28 01:24:11,888 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-28 01:24:11,888 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-28 01:24:11,888 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-28 01:24:11,889 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=SHALLOWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true; [2020-08-28 01:24:12,368 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-28 01:24:12,393 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-28 01:24:12,397 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-28 01:24:12,400 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-28 01:24:12,401 INFO L275 PluginConnector]: CDTParser initialized [2020-08-28 01:24:12,402 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/matrix-2.c [2020-08-28 01:24:12,493 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/673c3decf/19f5ebc4622f4b79ae9820a587f0587f/FLAG405575661 [2020-08-28 01:24:12,987 INFO L306 CDTParser]: Found 1 translation units. [2020-08-28 01:24:12,988 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loops/matrix-2.c [2020-08-28 01:24:12,996 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/673c3decf/19f5ebc4622f4b79ae9820a587f0587f/FLAG405575661 [2020-08-28 01:24:13,348 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/673c3decf/19f5ebc4622f4b79ae9820a587f0587f [2020-08-28 01:24:13,364 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-28 01:24:13,366 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-28 01:24:13,367 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-28 01:24:13,367 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-28 01:24:13,372 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-28 01:24:13,373 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.08 01:24:13" (1/1) ... [2020-08-28 01:24:13,378 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@782f63b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 01:24:13, skipping insertion in model container [2020-08-28 01:24:13,378 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.08 01:24:13" (1/1) ... [2020-08-28 01:24:13,388 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-28 01:24:13,414 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-28 01:24:13,713 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-28 01:24:13,719 INFO L203 MainTranslator]: Completed pre-run [2020-08-28 01:24:13,753 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-28 01:24:13,773 INFO L208 MainTranslator]: Completed translation [2020-08-28 01:24:13,774 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 01:24:13 WrapperNode [2020-08-28 01:24:13,774 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-28 01:24:13,775 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-28 01:24:13,775 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-28 01:24:13,775 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-28 01:24:13,873 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 01:24:13" (1/1) ... [2020-08-28 01:24:13,874 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 01:24:13" (1/1) ... [2020-08-28 01:24:13,885 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 01:24:13" (1/1) ... [2020-08-28 01:24:13,885 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 01:24:13" (1/1) ... [2020-08-28 01:24:13,894 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 01:24:13" (1/1) ... [2020-08-28 01:24:13,901 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 01:24:13" (1/1) ... [2020-08-28 01:24:13,903 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 01:24:13" (1/1) ... [2020-08-28 01:24:13,905 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-28 01:24:13,906 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-28 01:24:13,906 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-28 01:24:13,906 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-28 01:24:13,908 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 01:24:13" (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 [2020-08-28 01:24:14,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-28 01:24:14,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-28 01:24:14,006 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-08-28 01:24:14,006 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-28 01:24:14,006 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-28 01:24:14,006 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-08-28 01:24:14,007 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-08-28 01:24:14,007 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-28 01:24:14,007 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-28 01:24:14,007 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-28 01:24:14,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-28 01:24:14,008 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-28 01:24:14,008 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-28 01:24:14,008 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-28 01:24:14,008 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-28 01:24:14,375 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-28 01:24:14,376 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-08-28 01:24:14,381 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.08 01:24:14 BoogieIcfgContainer [2020-08-28 01:24:14,381 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-28 01:24:14,382 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-28 01:24:14,383 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-28 01:24:14,386 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-28 01:24:14,387 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.08 01:24:13" (1/3) ... [2020-08-28 01:24:14,387 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64f57d0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.08 01:24:14, skipping insertion in model container [2020-08-28 01:24:14,388 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 01:24:13" (2/3) ... [2020-08-28 01:24:14,388 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64f57d0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.08 01:24:14, skipping insertion in model container [2020-08-28 01:24:14,388 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.08 01:24:14" (3/3) ... [2020-08-28 01:24:14,390 INFO L109 eAbstractionObserver]: Analyzing ICFG matrix-2.c [2020-08-28 01:24:14,402 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-28 01:24:14,413 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-28 01:24:14,435 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-28 01:24:14,469 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-28 01:24:14,469 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-28 01:24:14,470 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-28 01:24:14,470 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-28 01:24:14,470 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-28 01:24:14,470 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-28 01:24:14,470 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-28 01:24:14,470 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-28 01:24:14,496 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2020-08-28 01:24:14,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-08-28 01:24:14,503 INFO L414 BasicCegarLoop]: Found error trace [2020-08-28 01:24:14,504 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-28 01:24:14,504 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-28 01:24:14,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-28 01:24:14,511 INFO L82 PathProgramCache]: Analyzing trace with hash -2125374060, now seen corresponding path program 1 times [2020-08-28 01:24:14,521 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-28 01:24:14,522 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [607128746] [2020-08-28 01:24:14,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-28 01:24:14,631 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-08-28 01:24:14,632 WARN L168 FreeRefinementEngine]: Strategy FIXED_PREFERENCES was unsuccessful and could not determine trace feasibility [2020-08-28 01:24:14,632 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-28 01:24:14,637 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-28 01:24:14,658 WARN L231 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-08-28 01:24:14,658 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.08 01:24:14 BoogieIcfgContainer [2020-08-28 01:24:14,659 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-28 01:24:14,663 INFO L168 Benchmark]: Toolchain (without parser) took 1295.39 ms. Allocated memory was 137.4 MB in the beginning and 200.3 MB in the end (delta: 62.9 MB). Free memory was 100.2 MB in the beginning and 148.4 MB in the end (delta: -48.2 MB). Peak memory consumption was 14.7 MB. Max. memory is 7.1 GB. [2020-08-28 01:24:14,664 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 137.4 MB. Free memory was 118.9 MB in the beginning and 118.7 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-08-28 01:24:14,665 INFO L168 Benchmark]: CACSL2BoogieTranslator took 407.54 ms. Allocated memory is still 137.4 MB. Free memory was 100.0 MB in the beginning and 89.2 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 7.1 GB. [2020-08-28 01:24:14,667 INFO L168 Benchmark]: Boogie Preprocessor took 130.39 ms. Allocated memory was 137.4 MB in the beginning and 200.3 MB in the end (delta: 62.9 MB). Free memory was 89.2 MB in the beginning and 177.5 MB in the end (delta: -88.3 MB). Peak memory consumption was 12.2 MB. Max. memory is 7.1 GB. [2020-08-28 01:24:14,668 INFO L168 Benchmark]: RCFGBuilder took 475.39 ms. Allocated memory is still 200.3 MB. Free memory was 177.5 MB in the beginning and 160.8 MB in the end (delta: 16.7 MB). Peak memory consumption was 16.7 MB. Max. memory is 7.1 GB. [2020-08-28 01:24:14,669 INFO L168 Benchmark]: TraceAbstraction took 276.48 ms. Allocated memory is still 200.3 MB. Free memory was 160.1 MB in the beginning and 148.4 MB in the end (delta: 11.7 MB). Peak memory consumption was 11.7 MB. Max. memory is 7.1 GB. [2020-08-28 01:24:14,673 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 137.4 MB. Free memory was 118.9 MB in the beginning and 118.7 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 407.54 ms. Allocated memory is still 137.4 MB. Free memory was 100.0 MB in the beginning and 89.2 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 130.39 ms. Allocated memory was 137.4 MB in the beginning and 200.3 MB in the end (delta: 62.9 MB). Free memory was 89.2 MB in the beginning and 177.5 MB in the end (delta: -88.3 MB). Peak memory consumption was 12.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 475.39 ms. Allocated memory is still 200.3 MB. Free memory was 177.5 MB in the beginning and 160.8 MB in the end (delta: 16.7 MB). Peak memory consumption was 16.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 276.48 ms. Allocated memory is still 200.3 MB. Free memory was 160.1 MB in the beginning and 148.4 MB in the end (delta: 11.7 MB). Peak memory consumption was 11.7 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