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-invgen/id_build_true-unreach-call_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-3142e50-m [2018-09-11 19:40:37,508 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-11 19:40:37,510 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-11 19:40:37,522 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-11 19:40:37,523 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-11 19:40:37,524 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-11 19:40:37,525 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-11 19:40:37,526 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-11 19:40:37,528 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-11 19:40:37,529 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-11 19:40:37,530 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-11 19:40:37,530 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-11 19:40:37,531 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-11 19:40:37,532 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-11 19:40:37,533 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-11 19:40:37,533 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-11 19:40:37,534 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-11 19:40:37,536 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-11 19:40:37,538 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-11 19:40:37,539 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-11 19:40:37,540 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-11 19:40:37,542 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-11 19:40:37,544 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-11 19:40:37,544 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-11 19:40:37,544 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-11 19:40:37,545 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-11 19:40:37,546 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-11 19:40:37,547 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-11 19:40:37,548 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-11 19:40:37,549 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-11 19:40:37,549 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-11 19:40:37,550 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-09-11 19:40:37,553 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 19:40:37,568 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-11 19:40:37,568 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-11 19:40:37,569 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-11 19:40:37,569 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-11 19:40:37,569 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-11 19:40:37,569 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-11 19:40:37,569 INFO L133 SettingsManager]: * Congruence Domain=false [2018-09-11 19:40:37,570 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-11 19:40:37,570 INFO L133 SettingsManager]: * Abstract domain=OctagonDomain [2018-09-11 19:40:37,570 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-11 19:40:37,570 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-11 19:40:37,570 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-11 19:40:37,571 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-11 19:40:37,571 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-11 19:40:37,571 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-11 19:40:37,572 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-11 19:40:37,572 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-11 19:40:37,572 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-11 19:40:37,572 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-11 19:40:37,572 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-11 19:40:37,573 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-11 19:40:37,573 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-11 19:40:37,573 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-11 19:40:37,573 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-11 19:40:37,573 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-11 19:40:37,574 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-11 19:40:37,574 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-11 19:40:37,574 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-11 19:40:37,574 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-11 19:40:37,574 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-11 19:40:37,575 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-11 19:40:37,575 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-11 19:40:37,575 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-11 19:40:37,575 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-11 19:40:37,618 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-11 19:40:37,635 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-11 19:40:37,640 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-11 19:40:37,641 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-11 19:40:37,641 INFO L276 PluginConnector]: CDTParser initialized [2018-09-11 19:40:37,642 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/id_build_true-unreach-call_true-termination.i [2018-09-11 19:40:37,975 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/683d3065f/289a54f4791645219d8768c3050da10a/FLAGf0cbda31f [2018-09-11 19:40:38,128 INFO L276 CDTParser]: Found 1 translation units. [2018-09-11 19:40:38,129 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/id_build_true-unreach-call_true-termination.i [2018-09-11 19:40:38,140 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/683d3065f/289a54f4791645219d8768c3050da10a/FLAGf0cbda31f [2018-09-11 19:40:38,162 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/683d3065f/289a54f4791645219d8768c3050da10a [2018-09-11 19:40:38,173 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-11 19:40:38,177 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-11 19:40:38,178 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-11 19:40:38,178 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-11 19:40:38,185 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-11 19:40:38,186 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 07:40:38" (1/1) ... [2018-09-11 19:40:38,190 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e495c96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 07:40:38, skipping insertion in model container [2018-09-11 19:40:38,190 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 07:40:38" (1/1) ... [2018-09-11 19:40:38,387 INFO L180 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-09-11 19:40:38,429 INFO L175 PostProcessor]: Settings: Checked method=main [2018-09-11 19:40:38,444 INFO L431 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-11 19:40:38,450 INFO L175 PostProcessor]: Settings: Checked method=main [2018-09-11 19:40:38,462 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 07:40:38 WrapperNode [2018-09-11 19:40:38,462 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-11 19:40:38,463 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-11 19:40:38,463 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-11 19:40:38,463 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-11 19:40:38,472 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 07:40:38" (1/1) ... [2018-09-11 19:40:38,479 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 07:40:38" (1/1) ... [2018-09-11 19:40:38,484 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-11 19:40:38,485 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-11 19:40:38,485 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-11 19:40:38,485 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-11 19:40:38,493 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 07:40:38" (1/1) ... [2018-09-11 19:40:38,493 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 07:40:38" (1/1) ... [2018-09-11 19:40:38,494 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 07:40:38" (1/1) ... [2018-09-11 19:40:38,494 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 07:40:38" (1/1) ... [2018-09-11 19:40:38,496 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 07:40:38" (1/1) ... [2018-09-11 19:40:38,501 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 07:40:38" (1/1) ... [2018-09-11 19:40:38,502 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 07:40:38" (1/1) ... [2018-09-11 19:40:38,503 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-11 19:40:38,504 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-11 19:40:38,504 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-11 19:40:38,504 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-11 19:40:38,505 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 07:40:38" (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 19:40:38,574 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-11 19:40:38,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-11 19:40:38,575 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-11 19:40:38,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-11 19:40:38,575 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-11 19:40:38,575 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-11 19:40:38,576 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_invgen_id_build_true_unreach_call_true_termination_i____VERIFIER_assert [2018-09-11 19:40:38,576 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_invgen_id_build_true_unreach_call_true_termination_i____VERIFIER_assert [2018-09-11 19:40:38,925 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-11 19:40:38,926 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 07:40:38 BoogieIcfgContainer [2018-09-11 19:40:38,926 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-11 19:40:38,927 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-11 19:40:38,927 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-11 19:40:38,931 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-11 19:40:38,931 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.09 07:40:38" (1/3) ... [2018-09-11 19:40:38,932 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b46ffbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.09 07:40:38, skipping insertion in model container [2018-09-11 19:40:38,932 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 07:40:38" (2/3) ... [2018-09-11 19:40:38,933 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b46ffbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.09 07:40:38, skipping insertion in model container [2018-09-11 19:40:38,933 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 07:40:38" (3/3) ... [2018-09-11 19:40:38,935 INFO L112 eAbstractionObserver]: Analyzing ICFG id_build_true-unreach-call_true-termination.i [2018-09-11 19:40:38,945 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-11 19:40:38,952 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-11 19:40:38,993 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-11 19:40:38,994 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-11 19:40:38,994 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-11 19:40:38,994 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-11 19:40:38,994 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-11 19:40:38,994 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-11 19:40:38,994 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-11 19:40:38,994 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-11 19:40:38,995 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-11 19:40:39,013 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2018-09-11 19:40:39,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-09-11 19:40:39,019 INFO L368 BasicCegarLoop]: Found error trace [2018-09-11 19:40:39,020 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-11 19:40:39,021 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_invgen_id_build_true_unreach_call_true_termination_i____VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-11 19:40:39,027 INFO L82 PathProgramCache]: Analyzing trace with hash -1225232818, now seen corresponding path program 1 times [2018-09-11 19:40:39,030 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-11 19:40:39,031 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 14 with the following transitions: [2018-09-11 19:40:39,032 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [13], [17], [22], [36], [39], [41], [47], [48], [49], [51] [2018-09-11 19:40:39,084 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-11 19:40:39,084 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-11 19:40:39,138 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-11 19:40:39,140 INFO L272 AbstractInterpreter]: Visited 12 different actions 12 times. Never merged. Never widened. Never found a fixpoint. Largest state had 6 variables. [2018-09-11 19:40:39,154 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-11 19:40:39,227 INFO L232 lantSequenceWeakener]: Weakened 2 states. On average, predicates are now at 41.67% of their original sizes. [2018-09-11 19:40:39,228 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-11 19:40:39,471 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-11 19:40:39,473 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-11 19:40:39,473 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-09-11 19:40:39,473 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-11 19:40:39,479 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-09-11 19:40:39,485 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-09-11 19:40:39,485 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-09-11 19:40:39,487 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 7 states. [2018-09-11 19:40:39,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-11 19:40:39,907 INFO L93 Difference]: Finished difference Result 63 states and 89 transitions. [2018-09-11 19:40:39,909 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-11 19:40:39,911 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 13 [2018-09-11 19:40:39,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-11 19:40:39,921 INFO L225 Difference]: With dead ends: 63 [2018-09-11 19:40:39,922 INFO L226 Difference]: Without dead ends: 36 [2018-09-11 19:40:39,926 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2018-09-11 19:40:39,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2018-09-11 19:40:39,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 32. [2018-09-11 19:40:39,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-09-11 19:40:39,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 36 transitions. [2018-09-11 19:40:39,979 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 36 transitions. Word has length 13 [2018-09-11 19:40:39,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-11 19:40:39,980 INFO L480 AbstractCegarLoop]: Abstraction has 32 states and 36 transitions. [2018-09-11 19:40:39,980 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-09-11 19:40:39,980 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 36 transitions. [2018-09-11 19:40:39,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-09-11 19:40:39,982 INFO L368 BasicCegarLoop]: Found error trace [2018-09-11 19:40:39,983 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-11 19:40:39,984 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_invgen_id_build_true_unreach_call_true_termination_i____VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-11 19:40:39,984 INFO L82 PathProgramCache]: Analyzing trace with hash 837473053, now seen corresponding path program 1 times [2018-09-11 19:40:39,984 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-11 19:40:39,985 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 32 with the following transitions: [2018-09-11 19:40:39,985 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [13], [17], [20], [22], [26], [30], [36], [39], [41], [44], [46], [47], [48], [49], [51], [52], [53], [54] [2018-09-11 19:40:39,987 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-11 19:40:39,987 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-11 19:40:40,144 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-11 19:40:40,144 INFO L272 AbstractInterpreter]: Visited 20 different actions 290 times. Merged at 9 different actions 100 times. Widened at 3 different actions 15 times. Found 13 fixpoints after 4 different actions. Largest state had 8 variables. [2018-09-11 19:40:40,152 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-11 19:40:40,209 INFO L232 lantSequenceWeakener]: Weakened 9 states. On average, predicates are now at 68.52% of their original sizes. [2018-09-11 19:40:40,209 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-11 19:40:40,560 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-11 19:40:40,561 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-11 19:40:40,561 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-09-11 19:40:40,561 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-11 19:40:40,562 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-09-11 19:40:40,563 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-09-11 19:40:40,563 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-09-11 19:40:40,564 INFO L87 Difference]: Start difference. First operand 32 states and 36 transitions. Second operand 8 states. [2018-09-11 19:40:40,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-11 19:40:40,736 INFO L93 Difference]: Finished difference Result 46 states and 54 transitions. [2018-09-11 19:40:40,738 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-11 19:40:40,739 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 31 [2018-09-11 19:40:40,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-11 19:40:40,740 INFO L225 Difference]: With dead ends: 46 [2018-09-11 19:40:40,740 INFO L226 Difference]: Without dead ends: 0 [2018-09-11 19:40:40,742 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 32 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2018-09-11 19:40:40,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-11 19:40:40,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-11 19:40:40,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-11 19:40:40,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-11 19:40:40,743 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 31 [2018-09-11 19:40:40,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-11 19:40:40,744 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-11 19:40:40,744 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-09-11 19:40:40,744 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-11 19:40:40,744 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-11 19:40:40,749 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-11 19:40:41,305 WARN L175 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 18 [2018-09-11 19:40:41,493 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-09-11 19:40:41,493 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-09-11 19:40:41,494 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-09-11 19:40:41,494 INFO L429 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-09-11 19:40:41,494 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-09-11 19:40:41,494 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-09-11 19:40:41,494 INFO L426 ceAbstractionStarter]: For program point mainEXIT(lines 10 20) no Hoare annotation was computed. [2018-09-11 19:40:41,495 INFO L422 ceAbstractionStarter]: At program point L15(line 15) the Hoare annotation is: (let ((.cse0 (* 2 main_~j~0))) (and (<= 0 .cse0) (<= (+ main_~i~0 1) main_~nlen~0) (<= .cse0 14) (<= (* 2 main_~nlen~0) 4294967294) (<= 0 (* 2 main_~i~0)))) [2018-09-11 19:40:41,495 INFO L422 ceAbstractionStarter]: At program point L15-1(line 15) the Hoare annotation is: (let ((.cse0 (* 2 main_~j~0))) (and (<= 0 .cse0) (<= (+ main_~i~0 1) main_~nlen~0) (<= .cse0 14) (<= (* 2 main_~nlen~0) 4294967294) (<= 0 (* 2 main_~i~0)))) [2018-09-11 19:40:41,495 INFO L426 ceAbstractionStarter]: For program point mainFINAL(lines 10 20) no Hoare annotation was computed. [2018-09-11 19:40:41,495 INFO L426 ceAbstractionStarter]: For program point L13-1(lines 13 18) no Hoare annotation was computed. [2018-09-11 19:40:41,496 INFO L426 ceAbstractionStarter]: For program point L13-3(lines 13 18) no Hoare annotation was computed. [2018-09-11 19:40:41,496 INFO L422 ceAbstractionStarter]: At program point L13-4(lines 13 18) the Hoare annotation is: (let ((.cse1 (* 2 main_~i~0)) (.cse0 (* 2 main_~nlen~0))) (and (<= .cse0 4294967294) (<= 0 .cse1) (<= .cse1 4294967294) (<= 0 (+ .cse0 4294967296)))) [2018-09-11 19:40:41,496 INFO L426 ceAbstractionStarter]: For program point L13-5(lines 13 18) no Hoare annotation was computed. [2018-09-11 19:40:41,496 INFO L429 ceAbstractionStarter]: At program point mainENTRY(lines 10 20) the Hoare annotation is: true [2018-09-11 19:40:41,496 INFO L426 ceAbstractionStarter]: For program point L16(lines 14 17) no Hoare annotation was computed. [2018-09-11 19:40:41,497 INFO L426 ceAbstractionStarter]: For program point L14-1(lines 14 17) no Hoare annotation was computed. [2018-09-11 19:40:41,497 INFO L422 ceAbstractionStarter]: At program point L14-3(lines 14 17) the Hoare annotation is: (let ((.cse0 (* 2 main_~j~0))) (and (<= .cse0 16) (<= 0 .cse0) (<= (+ main_~i~0 1) main_~nlen~0) (<= (* 2 main_~nlen~0) 4294967294) (<= 0 (* 2 main_~i~0)))) [2018-09-11 19:40:41,497 INFO L429 ceAbstractionStarter]: At program point __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_invgen_id_build_true_unreach_call_true_termination_i____VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2018-09-11 19:40:41,497 INFO L426 ceAbstractionStarter]: For program point __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_invgen_id_build_true_unreach_call_true_termination_i____VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-09-11 19:40:41,498 INFO L426 ceAbstractionStarter]: For program point __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_invgen_id_build_true_unreach_call_true_termination_i____VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2018-09-11 19:40:41,498 INFO L426 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-09-11 19:40:41,498 INFO L426 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-09-11 19:40:41,498 INFO L426 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2018-09-11 19:40:41,509 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.09 07:40:41 BoogieIcfgContainer [2018-09-11 19:40:41,509 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-11 19:40:41,510 INFO L168 Benchmark]: Toolchain (without parser) took 3336.32 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 740.8 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -659.6 MB). Peak memory consumption was 81.2 MB. Max. memory is 7.1 GB. [2018-09-11 19:40:41,512 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 19:40:41,513 INFO L168 Benchmark]: CACSL2BoogieTranslator took 284.15 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 19:40:41,514 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.69 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 19:40:41,514 INFO L168 Benchmark]: Boogie Preprocessor took 18.38 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 19:40:41,515 INFO L168 Benchmark]: RCFGBuilder took 422.65 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 740.8 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -782.6 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. [2018-09-11 19:40:41,516 INFO L168 Benchmark]: TraceAbstraction took 2581.85 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 112.4 MB). Peak memory consumption was 112.4 MB. Max. memory is 7.1 GB. [2018-09-11 19:40:41,521 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 284.15 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 21.69 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 18.38 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 422.65 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 740.8 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -782.6 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2581.85 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 112.4 MB). Peak memory consumption was 112.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: (((2 * j <= 16 && 0 <= 2 * j) && i + 1 <= nlen) && 2 * nlen <= 4294967294) && 0 <= 2 * i - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: ((2 * nlen <= 4294967294 && 0 <= 2 * i) && 2 * i <= 4294967294) && 0 <= 2 * nlen + 4294967296 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 24 locations, 1 error locations. SAFE Result, 2.5s OverallTime, 2 OverallIterations, 3 TraceHistogramMax, 0.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.7s HoareAnnotationTime, HoareTripleCheckerStatistics: 29 SDtfs, 31 SDslu, 103 SDs, 0 SdLazy, 84 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 45 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred in iteration=1, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.2s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.9236111111111113 AbsIntWeakeningRatio, 0.5476190476190477 AbsIntAvgWeakeningVarsNumRemoved, 1.9523809523809523 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 16 PreInvPairs, 26 NumberOfFragments, 106 HoareAnnotationTreeSize, 16 FomulaSimplifications, 730 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 9 FomulaSimplificationsInter, 308 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: No data available, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/id_build_true-unreach-call_true-termination.i_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-11_19-40-41-536.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/id_build_true-unreach-call_true-termination.i_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-11_19-40-41-536.csv Received shutdown request...