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_CON-OldIcfg.epf -i ../../../trunk/examples/svcomp/loop-invgen/SpamAssassin-loop_true-unreach-call_false-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-3142e50-m [2018-09-11 17:54:25,549 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-11 17:54:25,551 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-11 17:54:25,563 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-11 17:54:25,564 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-11 17:54:25,565 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-11 17:54:25,566 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-11 17:54:25,568 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-11 17:54:25,570 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-11 17:54:25,571 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-11 17:54:25,572 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-11 17:54:25,572 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-11 17:54:25,573 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-11 17:54:25,574 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-11 17:54:25,575 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-11 17:54:25,576 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-11 17:54:25,577 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-11 17:54:25,579 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-11 17:54:25,581 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-11 17:54:25,583 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-11 17:54:25,584 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-11 17:54:25,585 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-11 17:54:25,588 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-11 17:54:25,588 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-11 17:54:25,588 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-11 17:54:25,590 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-11 17:54:25,591 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-11 17:54:25,592 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-11 17:54:25,592 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-11 17:54:25,594 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-11 17:54:25,594 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-11 17:54:25,595 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-11 17:54:25,595 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-11 17:54:25,595 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-11 17:54:25,597 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-11 17:54:25,597 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-11 17:54:25,598 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_CON-OldIcfg.epf [2018-09-11 17:54:25,613 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-11 17:54:25,614 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-11 17:54:25,614 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-11 17:54:25,615 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-11 17:54:25,615 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-11 17:54:25,615 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-11 17:54:25,615 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-11 17:54:25,616 INFO L133 SettingsManager]: * Octagon Domain=false [2018-09-11 17:54:25,616 INFO L133 SettingsManager]: * Abstract domain=CongruenceDomain [2018-09-11 17:54:25,616 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-11 17:54:25,616 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-11 17:54:25,616 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-11 17:54:25,617 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-11 17:54:25,617 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-11 17:54:25,618 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-11 17:54:25,618 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-11 17:54:25,618 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-11 17:54:25,618 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-11 17:54:25,618 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-11 17:54:25,618 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-11 17:54:25,619 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-11 17:54:25,619 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-11 17:54:25,619 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-11 17:54:25,619 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-11 17:54:25,620 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-11 17:54:25,620 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-11 17:54:25,620 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-11 17:54:25,620 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-11 17:54:25,620 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-11 17:54:25,621 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-11 17:54:25,621 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-11 17:54:25,621 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-11 17:54:25,621 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-11 17:54:25,621 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-11 17:54:25,669 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-11 17:54:25,682 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-11 17:54:25,686 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-11 17:54:25,687 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-11 17:54:25,688 INFO L276 PluginConnector]: CDTParser initialized [2018-09-11 17:54:25,688 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/SpamAssassin-loop_true-unreach-call_false-termination.i [2018-09-11 17:54:26,038 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f0965dd1e/893b846a7b804e5c8025fecc5a06b4bc/FLAG01c92e531 [2018-09-11 17:54:26,165 INFO L276 CDTParser]: Found 1 translation units. [2018-09-11 17:54:26,166 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/SpamAssassin-loop_true-unreach-call_false-termination.i [2018-09-11 17:54:26,173 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f0965dd1e/893b846a7b804e5c8025fecc5a06b4bc/FLAG01c92e531 [2018-09-11 17:54:26,189 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f0965dd1e/893b846a7b804e5c8025fecc5a06b4bc [2018-09-11 17:54:26,203 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-11 17:54:26,206 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-11 17:54:26,208 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-11 17:54:26,208 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-11 17:54:26,215 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-11 17:54:26,216 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 05:54:26" (1/1) ... [2018-09-11 17:54:26,219 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d3c0c43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 05:54:26, skipping insertion in model container [2018-09-11 17:54:26,219 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 05:54:26" (1/1) ... [2018-09-11 17:54:26,436 INFO L180 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-09-11 17:54:26,498 INFO L175 PostProcessor]: Settings: Checked method=main [2018-09-11 17:54:26,518 INFO L431 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-11 17:54:26,539 INFO L175 PostProcessor]: Settings: Checked method=main [2018-09-11 17:54:26,562 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 05:54:26 WrapperNode [2018-09-11 17:54:26,562 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-11 17:54:26,563 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-11 17:54:26,563 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-11 17:54:26,563 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-11 17:54:26,575 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 05:54:26" (1/1) ... [2018-09-11 17:54:26,583 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 05:54:26" (1/1) ... [2018-09-11 17:54:26,590 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-11 17:54:26,591 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-11 17:54:26,591 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-11 17:54:26,591 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-11 17:54:26,603 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 05:54:26" (1/1) ... [2018-09-11 17:54:26,604 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 05:54:26" (1/1) ... [2018-09-11 17:54:26,605 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 05:54:26" (1/1) ... [2018-09-11 17:54:26,605 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 05:54:26" (1/1) ... [2018-09-11 17:54:26,609 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 05:54:26" (1/1) ... [2018-09-11 17:54:26,623 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 05:54:26" (1/1) ... [2018-09-11 17:54:26,625 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 05:54:26" (1/1) ... [2018-09-11 17:54:26,628 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-11 17:54:26,628 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-11 17:54:26,636 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-11 17:54:26,636 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-11 17:54:26,638 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 05:54:26" (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 17:54:26,713 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-11 17:54:26,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-11 17:54:26,714 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_invgen_SpamAssassin_loop_true_unreach_call_false_termination_i____VERIFIER_assert [2018-09-11 17:54:26,714 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_invgen_SpamAssassin_loop_true_unreach_call_false_termination_i____VERIFIER_assert [2018-09-11 17:54:26,714 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-11 17:54:26,715 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-11 17:54:26,716 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-11 17:54:26,716 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-11 17:54:27,247 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-11 17:54:27,248 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 05:54:27 BoogieIcfgContainer [2018-09-11 17:54:27,248 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-11 17:54:27,249 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-11 17:54:27,249 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-11 17:54:27,253 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-11 17:54:27,253 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.09 05:54:26" (1/3) ... [2018-09-11 17:54:27,254 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cb71a5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.09 05:54:27, skipping insertion in model container [2018-09-11 17:54:27,254 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 05:54:26" (2/3) ... [2018-09-11 17:54:27,255 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cb71a5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.09 05:54:27, skipping insertion in model container [2018-09-11 17:54:27,255 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 05:54:27" (3/3) ... [2018-09-11 17:54:27,257 INFO L112 eAbstractionObserver]: Analyzing ICFG SpamAssassin-loop_true-unreach-call_false-termination.i [2018-09-11 17:54:27,267 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-11 17:54:27,277 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-11 17:54:27,332 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-11 17:54:27,333 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-11 17:54:27,333 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-11 17:54:27,334 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-11 17:54:27,334 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-11 17:54:27,334 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-11 17:54:27,334 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-11 17:54:27,334 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-11 17:54:27,334 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-11 17:54:27,357 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states. [2018-09-11 17:54:27,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-09-11 17:54:27,367 INFO L368 BasicCegarLoop]: Found error trace [2018-09-11 17:54:27,368 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-11 17:54:27,369 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_invgen_SpamAssassin_loop_true_unreach_call_false_termination_i____VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-11 17:54:27,375 INFO L82 PathProgramCache]: Analyzing trace with hash -61610569, now seen corresponding path program 1 times [2018-09-11 17:54:27,378 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-11 17:54:27,379 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 16 with the following transitions: [2018-09-11 17:54:27,382 INFO L202 CegarAbsIntRunner]: [0], [1], [4], [6], [15], [19], [23], [28], [32], [37], [40], [79], [80], [81], [83] [2018-09-11 17:54:27,417 INFO L148 AbstractInterpreter]: Using domain CongruenceDomain [2018-09-11 17:54:27,417 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CongruenceDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-11 17:54:27,506 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-09-11 17:54:27,508 INFO L272 AbstractInterpreter]: Visited 15 different actions 15 times. Never merged. Never widened. Never found a fixpoint. Largest state had 7 variables. [2018-09-11 17:54:27,558 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-11 17:54:27,585 WARN L209 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2018-09-11 17:54:27,586 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.09 05:54:27 BoogieIcfgContainer [2018-09-11 17:54:27,586 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-11 17:54:27,587 INFO L168 Benchmark]: Toolchain (without parser) took 1383.51 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 744.0 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -768.9 MB). There was no memory consumed. Max. memory is 7.1 GB. [2018-09-11 17:54:27,591 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-11 17:54:27,592 INFO L168 Benchmark]: CACSL2BoogieTranslator took 354.94 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 17:54:27,593 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.15 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 17:54:27,594 INFO L168 Benchmark]: Boogie Preprocessor took 37.29 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 17:54:27,595 INFO L168 Benchmark]: RCFGBuilder took 620.12 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 744.0 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -793.0 MB). Peak memory consumption was 26.9 MB. Max. memory is 7.1 GB. [2018-09-11 17:54:27,597 INFO L168 Benchmark]: TraceAbstraction took 337.07 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 13.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 7.1 GB. [2018-09-11 17:54:27,603 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 354.94 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 27.15 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 37.29 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 620.12 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 744.0 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -793.0 MB). Peak memory consumption was 26.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 337.07 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 13.5 MB). Peak memory consumption was 13.5 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: [L12] int len; [L13] int i; [L14] int j; [L15] int bufsize; [L16] bufsize = __VERIFIER_nondet_int() [L17] COND FALSE !(bufsize < 0) [L18] len = __VERIFIER_nondet_int() [L19] int limit = bufsize - 4; [L20] i = 0 [L20] COND TRUE i < len [L21] j = 0 [L21] COND TRUE i < len && j < limit [L22] COND TRUE i + 1 < len [L23] CALL __VERIFIER_assert(i+1