java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf -i ../../../trunk/examples/svcomp/loops/matrix_true-unreach-call_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-3142e50-m [2018-09-11 19:30:09,309 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-11 19:30:09,311 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-11 19:30:09,324 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-11 19:30:09,324 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-11 19:30:09,325 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-11 19:30:09,327 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-11 19:30:09,329 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-11 19:30:09,331 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-11 19:30:09,332 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-11 19:30:09,333 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-11 19:30:09,334 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-11 19:30:09,335 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-11 19:30:09,336 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-11 19:30:09,337 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-11 19:30:09,338 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-11 19:30:09,339 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-11 19:30:09,341 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-11 19:30:09,343 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-11 19:30:09,345 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-11 19:30:09,347 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-11 19:30:09,348 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-11 19:30:09,351 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-11 19:30:09,351 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-11 19:30:09,351 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-11 19:30:09,352 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-11 19:30:09,353 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-11 19:30:09,354 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-11 19:30:09,355 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-11 19:30:09,357 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-11 19:30:09,357 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-11 19:30:09,358 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-11 19:30:09,358 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-11 19:30:09,359 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-11 19:30:09,360 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-11 19:30:09,361 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-11 19:30:09,361 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf [2018-09-11 19:30:09,379 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-11 19:30:09,379 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-11 19:30:09,380 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-11 19:30:09,380 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-11 19:30:09,381 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-11 19:30:09,381 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-11 19:30:09,381 INFO L133 SettingsManager]: * Congruence Domain=false [2018-09-11 19:30:09,381 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-11 19:30:09,382 INFO L133 SettingsManager]: * Abstract domain=OctagonDomain [2018-09-11 19:30:09,382 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-11 19:30:09,382 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-11 19:30:09,382 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-11 19:30:09,383 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-11 19:30:09,383 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-11 19:30:09,384 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-11 19:30:09,384 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-11 19:30:09,384 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-11 19:30:09,384 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-11 19:30:09,384 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-11 19:30:09,385 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-11 19:30:09,385 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-11 19:30:09,385 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-11 19:30:09,385 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-11 19:30:09,385 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-11 19:30:09,386 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-11 19:30:09,386 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-11 19:30:09,386 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-11 19:30:09,386 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-11 19:30:09,387 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-11 19:30:09,387 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-11 19:30:09,387 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-11 19:30:09,387 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-11 19:30:09,387 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-11 19:30:09,388 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-11 19:30:09,448 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-11 19:30:09,470 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-11 19:30:09,477 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-11 19:30:09,479 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-11 19:30:09,479 INFO L276 PluginConnector]: CDTParser initialized [2018-09-11 19:30:09,480 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/matrix_true-unreach-call_true-termination.i [2018-09-11 19:30:09,841 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f7baec32/be3599e84c4346d581fb0331cec2ae9a/FLAG909228ee3 [2018-09-11 19:30:10,022 INFO L276 CDTParser]: Found 1 translation units. [2018-09-11 19:30:10,022 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/matrix_true-unreach-call_true-termination.i [2018-09-11 19:30:10,030 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f7baec32/be3599e84c4346d581fb0331cec2ae9a/FLAG909228ee3 [2018-09-11 19:30:10,055 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f7baec32/be3599e84c4346d581fb0331cec2ae9a [2018-09-11 19:30:10,068 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-11 19:30:10,072 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-11 19:30:10,077 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-11 19:30:10,077 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-11 19:30:10,086 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-11 19:30:10,087 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 07:30:10" (1/1) ... [2018-09-11 19:30:10,091 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19536b9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 07:30:10, skipping insertion in model container [2018-09-11 19:30:10,091 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 07:30:10" (1/1) ... [2018-09-11 19:30:10,261 INFO L180 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-09-11 19:30:10,306 INFO L175 PostProcessor]: Settings: Checked method=main [2018-09-11 19:30:10,324 INFO L431 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-11 19:30:10,332 INFO L175 PostProcessor]: Settings: Checked method=main [2018-09-11 19:30:10,346 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 07:30:10 WrapperNode [2018-09-11 19:30:10,346 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-11 19:30:10,347 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-11 19:30:10,348 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-11 19:30:10,348 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-11 19:30:10,357 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 07:30:10" (1/1) ... [2018-09-11 19:30:10,366 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 07:30:10" (1/1) ... [2018-09-11 19:30:10,372 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-11 19:30:10,373 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-11 19:30:10,373 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-11 19:30:10,373 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-11 19:30:10,383 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 07:30:10" (1/1) ... [2018-09-11 19:30:10,383 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 07:30:10" (1/1) ... [2018-09-11 19:30:10,384 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 07:30:10" (1/1) ... [2018-09-11 19:30:10,385 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 07:30:10" (1/1) ... [2018-09-11 19:30:10,387 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 07:30:10" (1/1) ... [2018-09-11 19:30:10,393 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 07:30:10" (1/1) ... [2018-09-11 19:30:10,394 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 07:30:10" (1/1) ... [2018-09-11 19:30:10,396 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-11 19:30:10,397 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-11 19:30:10,397 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-11 19:30:10,397 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-11 19:30:10,398 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 07:30:10" (1/1) ... No working directory specified, using /storage/repos/ultimate/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 [2018-09-11 19:30:10,472 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-11 19:30:10,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-11 19:30:10,473 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_matrix_true_unreach_call_true_termination_i____VERIFIER_assert [2018-09-11 19:30:10,473 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_matrix_true_unreach_call_true_termination_i____VERIFIER_assert [2018-09-11 19:30:10,473 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-11 19:30:10,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-11 19:30:10,474 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-11 19:30:10,474 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-11 19:30:10,924 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-11 19:30:10,925 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 07:30:10 BoogieIcfgContainer [2018-09-11 19:30:10,925 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-11 19:30:10,926 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-11 19:30:10,927 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-11 19:30:10,930 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-11 19:30:10,930 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.09 07:30:10" (1/3) ... [2018-09-11 19:30:10,931 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@743597c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.09 07:30:10, skipping insertion in model container [2018-09-11 19:30:10,931 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 07:30:10" (2/3) ... [2018-09-11 19:30:10,931 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@743597c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.09 07:30:10, skipping insertion in model container [2018-09-11 19:30:10,932 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 07:30:10" (3/3) ... [2018-09-11 19:30:10,933 INFO L112 eAbstractionObserver]: Analyzing ICFG matrix_true-unreach-call_true-termination.i [2018-09-11 19:30:10,943 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-11 19:30:10,952 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-11 19:30:11,000 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-11 19:30:11,000 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-11 19:30:11,001 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-11 19:30:11,001 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-11 19:30:11,001 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-11 19:30:11,001 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-11 19:30:11,001 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-11 19:30:11,002 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-11 19:30:11,002 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-11 19:30:11,026 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2018-09-11 19:30:11,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-09-11 19:30:11,034 INFO L368 BasicCegarLoop]: Found error trace [2018-09-11 19:30:11,035 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-11 19:30:11,036 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_matrix_true_unreach_call_true_termination_i____VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-11 19:30:11,042 INFO L82 PathProgramCache]: Analyzing trace with hash 1764199642, now seen corresponding path program 1 times [2018-09-11 19:30:11,045 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-11 19:30:11,046 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 11 with the following transitions: [2018-09-11 19:30:11,048 INFO L202 CegarAbsIntRunner]: [0], [1], [4], [6], [15], [46], [51], [52], [53], [55] [2018-09-11 19:30:11,103 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-11 19:30:11,103 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-11 19:30:11,158 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-11 19:30:11,159 INFO L272 AbstractInterpreter]: Visited 6 different actions 6 times. Never merged. Never widened. Never found a fixpoint. Largest state had 7 variables. [2018-09-11 19:30:11,177 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-11 19:30:11,226 INFO L232 lantSequenceWeakener]: Weakened 1 states. On average, predicates are now at 75% of their original sizes. [2018-09-11 19:30:11,227 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-11 19:30:11,242 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-11 19:30:11,244 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-11 19:30:11,244 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-11 19:30:11,244 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-11 19:30:11,249 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-11 19:30:11,255 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-11 19:30:11,255 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-11 19:30:11,258 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 3 states. [2018-09-11 19:30:11,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-11 19:30:11,325 INFO L93 Difference]: Finished difference Result 54 states and 72 transitions. [2018-09-11 19:30:11,326 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-11 19:30:11,327 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-09-11 19:30:11,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-11 19:30:11,335 INFO L225 Difference]: With dead ends: 54 [2018-09-11 19:30:11,336 INFO L226 Difference]: Without dead ends: 25 [2018-09-11 19:30:11,339 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-11 19:30:11,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2018-09-11 19:30:11,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 17. [2018-09-11 19:30:11,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2018-09-11 19:30:11,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2018-09-11 19:30:11,381 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 10 [2018-09-11 19:30:11,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-11 19:30:11,381 INFO L480 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2018-09-11 19:30:11,382 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-11 19:30:11,382 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2018-09-11 19:30:11,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-09-11 19:30:11,383 INFO L368 BasicCegarLoop]: Found error trace [2018-09-11 19:30:11,383 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-11 19:30:11,384 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_matrix_true_unreach_call_true_termination_i____VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-11 19:30:11,384 INFO L82 PathProgramCache]: Analyzing trace with hash -1946243441, now seen corresponding path program 1 times [2018-09-11 19:30:11,384 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-11 19:30:11,385 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 12 with the following transitions: [2018-09-11 19:30:11,385 INFO L202 CegarAbsIntRunner]: [0], [1], [4], [6], [15], [19], [22], [51], [52], [53], [55] [2018-09-11 19:30:11,387 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-11 19:30:11,387 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-11 19:30:11,413 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-11 19:30:11,430 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-09-11 19:30:11,430 INFO L272 AbstractInterpreter]: Visited 11 different actions 11 times. Never merged. Never widened. Never found a fixpoint. Largest state had 7 variables. [2018-09-11 19:30:11,459 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-11 19:30:11,476 WARN L209 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2018-09-11 19:30:11,476 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.09 07:30:11 BoogieIcfgContainer [2018-09-11 19:30:11,476 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-11 19:30:11,477 INFO L168 Benchmark]: Toolchain (without parser) took 1408.78 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 708.8 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -714.5 MB). There was no memory consumed. Max. memory is 7.1 GB. [2018-09-11 19:30:11,479 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-11 19:30:11,480 INFO L168 Benchmark]: CACSL2BoogieTranslator took 269.84 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-09-11 19:30:11,481 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.88 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-11 19:30:11,482 INFO L168 Benchmark]: Boogie Preprocessor took 23.78 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-11 19:30:11,482 INFO L168 Benchmark]: RCFGBuilder took 528.80 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 708.8 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -759.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. [2018-09-11 19:30:11,484 INFO L168 Benchmark]: TraceAbstraction took 549.97 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 34.7 MB). Peak memory consumption was 34.7 MB. Max. memory is 7.1 GB. [2018-09-11 19:30:11,489 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 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 269.84 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 24.88 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 23.78 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 528.80 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 708.8 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -759.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 549.97 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 34.7 MB). Peak memory consumption was 34.7 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: [L13] unsigned int N_LIN=1; [L14] unsigned int N_COL=1; [L15] unsigned int j,k; [L16] int matriz[N_COL][N_LIN], maior; [L18] maior = __VERIFIER_nondet_int() [L19] j=0 [L19] COND FALSE !(j