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/loop-lit/mcmillan2006_true-unreach-call_true-termination.c.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-3142e50-m [2018-09-11 19:41:22,432 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-11 19:41:22,438 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-11 19:41:22,457 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-11 19:41:22,457 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-11 19:41:22,458 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-11 19:41:22,459 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-11 19:41:22,461 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-11 19:41:22,463 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-11 19:41:22,464 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-11 19:41:22,465 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-11 19:41:22,465 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-11 19:41:22,466 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-11 19:41:22,467 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-11 19:41:22,468 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-11 19:41:22,469 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-11 19:41:22,470 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-11 19:41:22,472 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-11 19:41:22,474 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-11 19:41:22,475 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-11 19:41:22,477 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-11 19:41:22,478 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-11 19:41:22,480 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-11 19:41:22,481 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-11 19:41:22,481 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-11 19:41:22,482 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-11 19:41:22,483 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-11 19:41:22,484 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-11 19:41:22,484 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-11 19:41:22,486 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-11 19:41:22,486 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-11 19:41:22,487 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-11 19:41:22,487 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-11 19:41:22,487 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-11 19:41:22,488 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-11 19:41:22,489 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-11 19:41:22,489 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 19:41:22,515 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-11 19:41:22,515 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-11 19:41:22,516 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-11 19:41:22,517 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-11 19:41:22,517 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-11 19:41:22,517 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-11 19:41:22,517 INFO L133 SettingsManager]: * Congruence Domain=false [2018-09-11 19:41:22,517 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-11 19:41:22,518 INFO L133 SettingsManager]: * Abstract domain=OctagonDomain [2018-09-11 19:41:22,518 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-11 19:41:22,518 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-11 19:41:22,518 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-11 19:41:22,519 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-11 19:41:22,519 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-11 19:41:22,520 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-11 19:41:22,520 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-11 19:41:22,520 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-11 19:41:22,520 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-11 19:41:22,521 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-11 19:41:22,521 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-11 19:41:22,521 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-11 19:41:22,521 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-11 19:41:22,521 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-11 19:41:22,522 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-11 19:41:22,522 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-11 19:41:22,522 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-11 19:41:22,522 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-11 19:41:22,522 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-11 19:41:22,523 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-11 19:41:22,523 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-11 19:41:22,523 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-11 19:41:22,523 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-11 19:41:22,523 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-11 19:41:22,523 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-11 19:41:22,568 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-11 19:41:22,581 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-11 19:41:22,585 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-11 19:41:22,587 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-11 19:41:22,587 INFO L276 PluginConnector]: CDTParser initialized [2018-09-11 19:41:22,588 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-lit/mcmillan2006_true-unreach-call_true-termination.c.i [2018-09-11 19:41:22,931 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/78ad7fba9/404ad0a2c8cc40ad8bf743f028127854/FLAG5c066040e [2018-09-11 19:41:23,076 INFO L276 CDTParser]: Found 1 translation units. [2018-09-11 19:41:23,077 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/mcmillan2006_true-unreach-call_true-termination.c.i [2018-09-11 19:41:23,084 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/78ad7fba9/404ad0a2c8cc40ad8bf743f028127854/FLAG5c066040e [2018-09-11 19:41:23,102 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/78ad7fba9/404ad0a2c8cc40ad8bf743f028127854 [2018-09-11 19:41:23,117 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-11 19:41:23,120 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-11 19:41:23,121 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-11 19:41:23,122 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-11 19:41:23,132 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-11 19:41:23,133 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 07:41:23" (1/1) ... [2018-09-11 19:41:23,137 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c86a5c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 07:41:23, skipping insertion in model container [2018-09-11 19:41:23,137 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 07:41:23" (1/1) ... [2018-09-11 19:41:23,322 INFO L180 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-09-11 19:41:23,365 INFO L175 PostProcessor]: Settings: Checked method=main [2018-09-11 19:41:23,390 INFO L431 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-11 19:41:23,396 INFO L175 PostProcessor]: Settings: Checked method=main [2018-09-11 19:41:23,412 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 07:41:23 WrapperNode [2018-09-11 19:41:23,412 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-11 19:41:23,413 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-11 19:41:23,413 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-11 19:41:23,413 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-11 19:41:23,422 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 07:41:23" (1/1) ... [2018-09-11 19:41:23,431 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 07:41:23" (1/1) ... [2018-09-11 19:41:23,449 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-11 19:41:23,449 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-11 19:41:23,449 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-11 19:41:23,450 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-11 19:41:23,460 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 07:41:23" (1/1) ... [2018-09-11 19:41:23,460 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 07:41:23" (1/1) ... [2018-09-11 19:41:23,461 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 07:41:23" (1/1) ... [2018-09-11 19:41:23,462 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 07:41:23" (1/1) ... [2018-09-11 19:41:23,466 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 07:41:23" (1/1) ... [2018-09-11 19:41:23,472 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 07:41:23" (1/1) ... [2018-09-11 19:41:23,473 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 07:41:23" (1/1) ... [2018-09-11 19:41:23,475 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-11 19:41:23,476 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-11 19:41:23,476 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-11 19:41:23,476 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-11 19:41:23,477 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 07:41:23" (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 19:41:23,627 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_lit_mcmillan_____true_unreach_call_true_termination_c_i____VERIFIER_assert [2018-09-11 19:41:23,627 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_lit_mcmillan_____true_unreach_call_true_termination_c_i____VERIFIER_assert [2018-09-11 19:41:23,628 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-11 19:41:23,628 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-11 19:41:23,628 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-11 19:41:23,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-11 19:41:23,628 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-11 19:41:23,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-11 19:41:24,041 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-11 19:41:24,042 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 07:41:24 BoogieIcfgContainer [2018-09-11 19:41:24,042 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-11 19:41:24,043 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-11 19:41:24,043 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-11 19:41:24,047 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-11 19:41:24,047 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.09 07:41:23" (1/3) ... [2018-09-11 19:41:24,048 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47a350e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.09 07:41:24, skipping insertion in model container [2018-09-11 19:41:24,048 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 07:41:23" (2/3) ... [2018-09-11 19:41:24,048 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47a350e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.09 07:41:24, skipping insertion in model container [2018-09-11 19:41:24,049 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 07:41:24" (3/3) ... [2018-09-11 19:41:24,050 INFO L112 eAbstractionObserver]: Analyzing ICFG mcmillan2006_true-unreach-call_true-termination.c.i [2018-09-11 19:41:24,061 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-11 19:41:24,073 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-11 19:41:24,118 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-11 19:41:24,119 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-11 19:41:24,120 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-11 19:41:24,120 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-11 19:41:24,120 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-11 19:41:24,120 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-11 19:41:24,120 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-11 19:41:24,120 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-11 19:41:24,121 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-11 19:41:24,141 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states. [2018-09-11 19:41:24,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-09-11 19:41:24,148 INFO L368 BasicCegarLoop]: Found error trace [2018-09-11 19:41:24,149 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-11 19:41:24,150 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_lit_mcmillan_____true_unreach_call_true_termination_c_i____VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-11 19:41:24,156 INFO L82 PathProgramCache]: Analyzing trace with hash -1338250742, now seen corresponding path program 1 times [2018-09-11 19:41:24,158 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-11 19:41:24,159 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 16 with the following transitions: [2018-09-11 19:41:24,162 INFO L202 CegarAbsIntRunner]: [0], [3], [5], [11], [12], [16], [20], [33], [35], [39], [44], [54], [55], [56], [58] [2018-09-11 19:41:24,212 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-11 19:41:24,212 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-11 19:41:24,329 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-11 19:41:24,331 INFO L272 AbstractInterpreter]: Visited 8 different actions 8 times. Never merged. Never widened. Never found a fixpoint. Largest state had 28 variables. [2018-09-11 19:41:24,359 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-11 19:41:24,471 INFO L232 lantSequenceWeakener]: Weakened 7 states. On average, predicates are now at 93.85% of their original sizes. [2018-09-11 19:41:24,472 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-11 19:41:24,564 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-11 19:41:24,565 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-11 19:41:24,566 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-11 19:41:24,566 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-11 19:41:24,571 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-11 19:41:24,578 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-11 19:41:24,579 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-11 19:41:24,583 INFO L87 Difference]: Start difference. First operand 27 states. Second operand 4 states. [2018-09-11 19:41:24,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-11 19:41:24,735 INFO L93 Difference]: Finished difference Result 46 states and 54 transitions. [2018-09-11 19:41:24,737 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-11 19:41:24,739 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2018-09-11 19:41:24,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-11 19:41:24,748 INFO L225 Difference]: With dead ends: 46 [2018-09-11 19:41:24,748 INFO L226 Difference]: Without dead ends: 22 [2018-09-11 19:41:24,752 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 14 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-11 19:41:24,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2018-09-11 19:41:24,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2018-09-11 19:41:24,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2018-09-11 19:41:24,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2018-09-11 19:41:24,792 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 15 [2018-09-11 19:41:24,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-11 19:41:24,793 INFO L480 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2018-09-11 19:41:24,793 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-11 19:41:24,793 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2018-09-11 19:41:24,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-09-11 19:41:24,794 INFO L368 BasicCegarLoop]: Found error trace [2018-09-11 19:41:24,794 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-11 19:41:24,795 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_lit_mcmillan_____true_unreach_call_true_termination_c_i____VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-11 19:41:24,795 INFO L82 PathProgramCache]: Analyzing trace with hash 84142610, now seen corresponding path program 1 times [2018-09-11 19:41:24,795 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-11 19:41:24,795 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 17 with the following transitions: [2018-09-11 19:41:24,796 INFO L202 CegarAbsIntRunner]: [0], [3], [5], [11], [12], [16], [20], [24], [27], [35], [39], [44], [54], [55], [56], [58] [2018-09-11 19:41:24,798 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-11 19:41:24,798 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-11 19:41:24,825 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-11 19:41:24,825 INFO L272 AbstractInterpreter]: Visited 12 different actions 12 times. Never merged. Never widened. Never found a fixpoint. Largest state had 28 variables. [2018-09-11 19:41:24,865 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-11 19:41:24,953 INFO L232 lantSequenceWeakener]: Weakened 11 states. On average, predicates are now at 85.29% of their original sizes. [2018-09-11 19:41:24,953 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-11 19:41:25,243 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-11 19:41:25,244 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-11 19:41:25,244 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-11 19:41:25,244 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-11 19:41:25,245 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-11 19:41:25,245 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-11 19:41:25,246 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-11 19:41:25,246 INFO L87 Difference]: Start difference. First operand 22 states and 23 transitions. Second operand 6 states. [2018-09-11 19:41:25,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-11 19:41:25,668 INFO L93 Difference]: Finished difference Result 39 states and 41 transitions. [2018-09-11 19:41:25,669 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-11 19:41:25,669 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2018-09-11 19:41:25,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-11 19:41:25,671 INFO L225 Difference]: With dead ends: 39 [2018-09-11 19:41:25,671 INFO L226 Difference]: Without dead ends: 25 [2018-09-11 19:41:25,673 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2018-09-11 19:41:25,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2018-09-11 19:41:25,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 24. [2018-09-11 19:41:25,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2018-09-11 19:41:25,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 25 transitions. [2018-09-11 19:41:25,682 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 25 transitions. Word has length 16 [2018-09-11 19:41:25,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-11 19:41:25,682 INFO L480 AbstractCegarLoop]: Abstraction has 24 states and 25 transitions. [2018-09-11 19:41:25,682 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-11 19:41:25,683 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 25 transitions. [2018-09-11 19:41:25,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-09-11 19:41:25,684 INFO L368 BasicCegarLoop]: Found error trace [2018-09-11 19:41:25,684 INFO L376 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-11 19:41:25,684 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_lit_mcmillan_____true_unreach_call_true_termination_c_i____VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-11 19:41:25,685 INFO L82 PathProgramCache]: Analyzing trace with hash -379014418, now seen corresponding path program 1 times [2018-09-11 19:41:25,685 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-11 19:41:25,685 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 20 with the following transitions: [2018-09-11 19:41:25,686 INFO L202 CegarAbsIntRunner]: [0], [3], [5], [11], [12], [16], [20], [24], [27], [29], [31], [35], [39], [44], [54], [55], [56], [58] [2018-09-11 19:41:25,689 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-11 19:41:25,690 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-11 19:41:26,248 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-09-11 19:41:26,248 INFO L272 AbstractInterpreter]: Visited 18 different actions 91 times. Merged at 7 different actions 48 times. Widened at 2 different actions 6 times. Found 1 fixpoints after 1 different actions. Largest state had 34 variables. [2018-09-11 19:41:26,289 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-11 19:41:26,311 WARN L209 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2018-09-11 19:41:26,311 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.09 07:41:26 BoogieIcfgContainer [2018-09-11 19:41:26,312 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-11 19:41:26,313 INFO L168 Benchmark]: Toolchain (without parser) took 3195.44 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 760.7 MB). Free memory was 1.4 GB in the beginning and 2.0 GB in the end (delta: -519.1 MB). Peak memory consumption was 241.6 MB. Max. memory is 7.1 GB. [2018-09-11 19:41:26,315 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 19:41:26,316 INFO L168 Benchmark]: CACSL2BoogieTranslator took 291.20 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 19:41:26,317 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.75 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 19:41:26,318 INFO L168 Benchmark]: Boogie Preprocessor took 26.31 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 19:41:26,318 INFO L168 Benchmark]: RCFGBuilder took 566.19 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 760.7 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -800.2 MB). Peak memory consumption was 26.9 MB. Max. memory is 7.1 GB. [2018-09-11 19:41:26,319 INFO L168 Benchmark]: TraceAbstraction took 2268.80 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 270.5 MB). Peak memory consumption was 270.5 MB. Max. memory is 7.1 GB. [2018-09-11 19:41:26,324 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 291.20 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 35.75 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 26.31 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 566.19 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 760.7 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -800.2 MB). Peak memory consumption was 26.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2268.80 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 270.5 MB). Peak memory consumption was 270.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 6]: 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] int n = __VERIFIER_nondet_int(); [L14] COND FALSE !(!(0 <= n && n <= 1000)) [L15] EXPR, FCALL malloc(n * sizeof(int)) [L15] int *x = malloc(n * sizeof(int)); [L16] int i = 0; [L16] COND TRUE i < n [L16] CALL x[i] = 0 [L16] RET x[i] = 0 [L16] i++ [L16] i++ [L16] COND FALSE !(i < n) [L17] int i = 0; [L17] COND TRUE i < n [L17] CALL, EXPR x[i] [L17] RET, EXPR x[i] [L17] CALL __VERIFIER_assert(x[i] == 0) [L5] COND TRUE !(cond) [L6] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 27 locations, 1 error locations. UNKNOWN Result, 2.2s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 0.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 43 SDtfs, 43 SDslu, 58 SDs, 0 SdLazy, 27 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 31 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.8s AbstIntTime, 3 AbstIntIterations, 2 AbstIntStrong, 0.9517241379310346 AbsIntWeakeningRatio, 1.4482758620689655 AbsIntAvgWeakeningVarsNumRemoved, 7.103448275862069 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: No data available, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/mcmillan2006_true-unreach-call_true-termination.c.i_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-11_19-41-26-337.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/mcmillan2006_true-unreach-call_true-termination.c.i_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-11_19-41-26-337.csv Received shutdown request...