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/nest-if3_true-unreach-call_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-3142e50-m [2018-09-11 19:40:43,944 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-11 19:40:43,947 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-11 19:40:43,960 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-11 19:40:43,960 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-11 19:40:43,961 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-11 19:40:43,962 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-11 19:40:43,964 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-11 19:40:43,966 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-11 19:40:43,966 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-11 19:40:43,967 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-11 19:40:43,968 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-11 19:40:43,968 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-11 19:40:43,969 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-11 19:40:43,971 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-11 19:40:43,971 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-11 19:40:43,972 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-11 19:40:43,974 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-11 19:40:43,976 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-11 19:40:43,977 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-11 19:40:43,978 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-11 19:40:43,979 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-11 19:40:43,982 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-11 19:40:43,982 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-11 19:40:43,982 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-11 19:40:43,983 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-11 19:40:43,984 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-11 19:40:43,985 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-11 19:40:43,986 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-11 19:40:43,987 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-11 19:40:43,987 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-11 19:40:43,988 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-09-11 19:40:43,991 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 19:40:44,013 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-11 19:40:44,014 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-11 19:40:44,016 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-11 19:40:44,016 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-11 19:40:44,016 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-11 19:40:44,016 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-11 19:40:44,016 INFO L133 SettingsManager]: * Congruence Domain=false [2018-09-11 19:40:44,017 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-11 19:40:44,017 INFO L133 SettingsManager]: * Abstract domain=OctagonDomain [2018-09-11 19:40:44,017 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-11 19:40:44,017 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-11 19:40:44,018 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-11 19:40:44,019 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-11 19:40:44,019 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-11 19:40:44,019 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-11 19:40:44,019 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-11 19:40:44,020 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-11 19:40:44,020 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-11 19:40:44,021 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-11 19:40:44,021 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-11 19:40:44,021 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-11 19:40:44,021 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-11 19:40:44,021 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-11 19:40:44,022 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-11 19:40:44,022 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-11 19:40:44,022 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-11 19:40:44,022 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-11 19:40:44,023 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-11 19:40:44,023 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-11 19:40:44,023 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-11 19:40:44,023 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-11 19:40:44,024 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-11 19:40:44,024 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-11 19:40:44,024 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-11 19:40:44,073 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-11 19:40:44,086 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-11 19:40:44,094 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-11 19:40:44,095 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-11 19:40:44,095 INFO L276 PluginConnector]: CDTParser initialized [2018-09-11 19:40:44,096 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/nest-if3_true-unreach-call_true-termination.i [2018-09-11 19:40:44,488 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a96f57b79/18ba11e18e614e4e89f5da4793135b2c/FLAG9f65db74f [2018-09-11 19:40:44,612 INFO L276 CDTParser]: Found 1 translation units. [2018-09-11 19:40:44,612 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/nest-if3_true-unreach-call_true-termination.i [2018-09-11 19:40:44,618 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a96f57b79/18ba11e18e614e4e89f5da4793135b2c/FLAG9f65db74f [2018-09-11 19:40:44,633 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a96f57b79/18ba11e18e614e4e89f5da4793135b2c [2018-09-11 19:40:44,642 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-11 19:40:44,646 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-11 19:40:44,647 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-11 19:40:44,647 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-11 19:40:44,654 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-11 19:40:44,655 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 07:40:44" (1/1) ... [2018-09-11 19:40:44,658 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ac1b44a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 07:40:44, skipping insertion in model container [2018-09-11 19:40:44,659 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 07:40:44" (1/1) ... [2018-09-11 19:40:44,856 INFO L180 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-09-11 19:40:44,894 INFO L175 PostProcessor]: Settings: Checked method=main [2018-09-11 19:40:44,913 INFO L431 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-11 19:40:44,919 INFO L175 PostProcessor]: Settings: Checked method=main [2018-09-11 19:40:44,935 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 07:40:44 WrapperNode [2018-09-11 19:40:44,936 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-11 19:40:44,936 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-11 19:40:44,937 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-11 19:40:44,937 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-11 19:40:44,946 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 07:40:44" (1/1) ... [2018-09-11 19:40:44,953 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 07:40:44" (1/1) ... [2018-09-11 19:40:44,959 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-11 19:40:44,960 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-11 19:40:44,960 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-11 19:40:44,961 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-11 19:40:44,970 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 07:40:44" (1/1) ... [2018-09-11 19:40:44,971 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 07:40:44" (1/1) ... [2018-09-11 19:40:44,972 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 07:40:44" (1/1) ... [2018-09-11 19:40:44,972 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 07:40:44" (1/1) ... [2018-09-11 19:40:44,974 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 07:40:44" (1/1) ... [2018-09-11 19:40:44,980 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 07:40:44" (1/1) ... [2018-09-11 19:40:44,981 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 07:40:44" (1/1) ... [2018-09-11 19:40:44,987 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-11 19:40:44,988 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-11 19:40:44,988 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-11 19:40:44,988 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-11 19:40:44,989 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 07:40:44" (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 19:40:45,047 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-11 19:40:45,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-11 19:40:45,048 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_invgen_nest_if__true_unreach_call_true_termination_i____VERIFIER_assert [2018-09-11 19:40:45,048 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_invgen_nest_if__true_unreach_call_true_termination_i____VERIFIER_assert [2018-09-11 19:40:45,048 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-11 19:40:45,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-11 19:40:45,049 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-11 19:40:45,049 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-11 19:40:45,469 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-11 19:40:45,469 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 07:40:45 BoogieIcfgContainer [2018-09-11 19:40:45,470 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-11 19:40:45,471 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-11 19:40:45,471 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-11 19:40:45,474 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-11 19:40:45,474 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.09 07:40:44" (1/3) ... [2018-09-11 19:40:45,475 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e57003b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.09 07:40:45, skipping insertion in model container [2018-09-11 19:40:45,475 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 07:40:44" (2/3) ... [2018-09-11 19:40:45,476 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e57003b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.09 07:40:45, skipping insertion in model container [2018-09-11 19:40:45,476 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 07:40:45" (3/3) ... [2018-09-11 19:40:45,477 INFO L112 eAbstractionObserver]: Analyzing ICFG nest-if3_true-unreach-call_true-termination.i [2018-09-11 19:40:45,487 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-11 19:40:45,495 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-11 19:40:45,546 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-11 19:40:45,547 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-11 19:40:45,547 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-11 19:40:45,547 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-11 19:40:45,548 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-11 19:40:45,548 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-11 19:40:45,548 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-11 19:40:45,548 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-11 19:40:45,548 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-11 19:40:45,567 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states. [2018-09-11 19:40:45,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-09-11 19:40:45,574 INFO L368 BasicCegarLoop]: Found error trace [2018-09-11 19:40:45,575 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-11 19:40:45,576 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_invgen_nest_if__true_unreach_call_true_termination_i____VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-11 19:40:45,581 INFO L82 PathProgramCache]: Analyzing trace with hash -303319981, now seen corresponding path program 1 times [2018-09-11 19:40:45,584 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-11 19:40:45,585 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 17 with the following transitions: [2018-09-11 19:40:45,590 INFO L202 CegarAbsIntRunner]: [0], [1], [4], [6], [15], [19], [23], [27], [31], [36], [40], [45], [64], [65], [66], [68] [2018-09-11 19:40:45,637 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-11 19:40:45,637 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-11 19:40:45,696 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-11 19:40:45,697 INFO L272 AbstractInterpreter]: Visited 15 different actions 15 times. Never merged. Never widened. Never found a fixpoint. Largest state had 6 variables. [2018-09-11 19:40:45,736 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-11 19:40:45,830 INFO L232 lantSequenceWeakener]: Weakened 4 states. On average, predicates are now at 56.25% of their original sizes. [2018-09-11 19:40:45,830 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-11 19:40:46,240 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-11 19:40:46,242 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-11 19:40:46,242 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-11 19:40:46,243 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-11 19:40:46,247 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-11 19:40:46,252 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-11 19:40:46,253 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2018-09-11 19:40:46,256 INFO L87 Difference]: Start difference. First operand 27 states. Second operand 10 states. [2018-09-11 19:40:47,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-11 19:40:47,200 INFO L93 Difference]: Finished difference Result 92 states and 129 transitions. [2018-09-11 19:40:47,200 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-09-11 19:40:47,202 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 16 [2018-09-11 19:40:47,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-11 19:40:47,212 INFO L225 Difference]: With dead ends: 92 [2018-09-11 19:40:47,212 INFO L226 Difference]: Without dead ends: 57 [2018-09-11 19:40:47,217 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=69, Invalid=171, Unknown=0, NotChecked=0, Total=240 [2018-09-11 19:40:47,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2018-09-11 19:40:47,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 36. [2018-09-11 19:40:47,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-09-11 19:40:47,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 40 transitions. [2018-09-11 19:40:47,268 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 40 transitions. Word has length 16 [2018-09-11 19:40:47,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-11 19:40:47,269 INFO L480 AbstractCegarLoop]: Abstraction has 36 states and 40 transitions. [2018-09-11 19:40:47,269 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-11 19:40:47,270 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 40 transitions. [2018-09-11 19:40:47,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-09-11 19:40:47,271 INFO L368 BasicCegarLoop]: Found error trace [2018-09-11 19:40:47,271 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-11 19:40:47,272 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_invgen_nest_if__true_unreach_call_true_termination_i____VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-11 19:40:47,272 INFO L82 PathProgramCache]: Analyzing trace with hash -2046872017, now seen corresponding path program 1 times [2018-09-11 19:40:47,272 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-11 19:40:47,273 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 24 with the following transitions: [2018-09-11 19:40:47,273 INFO L202 CegarAbsIntRunner]: [0], [1], [4], [6], [15], [19], [23], [27], [31], [36], [40], [43], [45], [52], [55], [59], [64], [65], [66], [68] [2018-09-11 19:40:47,275 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-11 19:40:47,275 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-11 19:40:47,341 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-11 19:40:47,342 INFO L272 AbstractInterpreter]: Visited 19 different actions 87 times. Merged at 8 different actions 53 times. Widened at 2 different actions 6 times. Found 4 fixpoints after 2 different actions. Largest state had 8 variables. [2018-09-11 19:40:47,378 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-11 19:40:47,418 INFO L232 lantSequenceWeakener]: Weakened 7 states. On average, predicates are now at 42.14% of their original sizes. [2018-09-11 19:40:47,419 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-11 19:40:48,333 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-11 19:40:48,334 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-11 19:40:48,334 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-09-11 19:40:48,334 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-11 19:40:48,336 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-11 19:40:48,336 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-11 19:40:48,336 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2018-09-11 19:40:48,337 INFO L87 Difference]: Start difference. First operand 36 states and 40 transitions. Second operand 14 states. [2018-09-11 19:40:49,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-11 19:40:49,767 INFO L93 Difference]: Finished difference Result 98 states and 119 transitions. [2018-09-11 19:40:49,768 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-09-11 19:40:49,769 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 23 [2018-09-11 19:40:49,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-11 19:40:49,772 INFO L225 Difference]: With dead ends: 98 [2018-09-11 19:40:49,772 INFO L226 Difference]: Without dead ends: 96 [2018-09-11 19:40:49,775 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 37 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=202, Invalid=610, Unknown=0, NotChecked=0, Total=812 [2018-09-11 19:40:49,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2018-09-11 19:40:49,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 43. [2018-09-11 19:40:49,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2018-09-11 19:40:49,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 49 transitions. [2018-09-11 19:40:49,794 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 49 transitions. Word has length 23 [2018-09-11 19:40:49,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-11 19:40:49,795 INFO L480 AbstractCegarLoop]: Abstraction has 43 states and 49 transitions. [2018-09-11 19:40:49,795 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-09-11 19:40:49,795 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 49 transitions. [2018-09-11 19:40:49,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-09-11 19:40:49,796 INFO L368 BasicCegarLoop]: Found error trace [2018-09-11 19:40:49,797 INFO L376 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-11 19:40:49,797 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_invgen_nest_if__true_unreach_call_true_termination_i____VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-11 19:40:49,798 INFO L82 PathProgramCache]: Analyzing trace with hash 515211616, now seen corresponding path program 1 times [2018-09-11 19:40:49,798 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-11 19:40:49,798 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 32 with the following transitions: [2018-09-11 19:40:49,798 INFO L202 CegarAbsIntRunner]: [0], [1], [4], [6], [9], [11], [15], [19], [23], [27], [31], [36], [40], [43], [45], [48], [52], [55], [59], [64], [65], [66], [68], [69] [2018-09-11 19:40:49,802 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-11 19:40:49,802 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-11 19:40:49,855 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-11 19:40:49,856 INFO L272 AbstractInterpreter]: Visited 23 different actions 131 times. Merged at 10 different actions 69 times. Widened at 3 different actions 7 times. Found 11 fixpoints after 3 different actions. Largest state had 9 variables. [2018-09-11 19:40:49,893 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-11 19:40:49,964 INFO L232 lantSequenceWeakener]: Weakened 10 states. On average, predicates are now at 54.5% of their original sizes. [2018-09-11 19:40:49,965 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-11 19:40:50,354 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-11 19:40:50,354 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-11 19:40:50,355 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2018-09-11 19:40:50,355 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-11 19:40:50,355 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-09-11 19:40:50,355 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-09-11 19:40:50,356 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2018-09-11 19:40:50,356 INFO L87 Difference]: Start difference. First operand 43 states and 49 transitions. Second operand 15 states. [2018-09-11 19:40:51,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-11 19:40:51,564 INFO L93 Difference]: Finished difference Result 146 states and 178 transitions. [2018-09-11 19:40:51,569 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-11 19:40:51,570 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 31 [2018-09-11 19:40:51,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-11 19:40:51,572 INFO L225 Difference]: With dead ends: 146 [2018-09-11 19:40:51,572 INFO L226 Difference]: Without dead ends: 144 [2018-09-11 19:40:51,576 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 41 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=147, Invalid=453, Unknown=0, NotChecked=0, Total=600 [2018-09-11 19:40:51,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2018-09-11 19:40:51,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 89. [2018-09-11 19:40:51,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2018-09-11 19:40:51,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 108 transitions. [2018-09-11 19:40:51,621 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 108 transitions. Word has length 31 [2018-09-11 19:40:51,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-11 19:40:51,622 INFO L480 AbstractCegarLoop]: Abstraction has 89 states and 108 transitions. [2018-09-11 19:40:51,622 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-09-11 19:40:51,622 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 108 transitions. [2018-09-11 19:40:51,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-09-11 19:40:51,625 INFO L368 BasicCegarLoop]: Found error trace [2018-09-11 19:40:51,626 INFO L376 BasicCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-11 19:40:51,626 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_invgen_nest_if__true_unreach_call_true_termination_i____VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-11 19:40:51,626 INFO L82 PathProgramCache]: Analyzing trace with hash 1623926278, now seen corresponding path program 1 times [2018-09-11 19:40:51,626 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-11 19:40:51,627 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 39 with the following transitions: [2018-09-11 19:40:51,627 INFO L202 CegarAbsIntRunner]: [0], [1], [4], [6], [9], [11], [15], [19], [23], [27], [31], [36], [40], [43], [45], [48], [52], [55], [57], [59], [64], [65], [66], [68], [69] [2018-09-11 19:40:51,629 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-11 19:40:51,629 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-11 19:40:51,721 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-11 19:40:51,721 INFO L272 AbstractInterpreter]: Visited 24 different actions 201 times. Merged at 11 different actions 107 times. Widened at 3 different actions 14 times. Found 28 fixpoints after 6 different actions. Largest state had 9 variables. [2018-09-11 19:40:51,745 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-11 19:40:51,785 INFO L232 lantSequenceWeakener]: Weakened 13 states. On average, predicates are now at 47.31% of their original sizes. [2018-09-11 19:40:51,785 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-11 19:40:52,253 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-11 19:40:52,254 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-11 19:40:52,254 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2018-09-11 19:40:52,255 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-11 19:40:52,255 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-09-11 19:40:52,256 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-09-11 19:40:52,256 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2018-09-11 19:40:52,257 INFO L87 Difference]: Start difference. First operand 89 states and 108 transitions. Second operand 15 states. [2018-09-11 19:40:53,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-11 19:40:53,019 INFO L93 Difference]: Finished difference Result 98 states and 119 transitions. [2018-09-11 19:40:53,022 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-09-11 19:40:53,023 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 38 [2018-09-11 19:40:53,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-11 19:40:53,023 INFO L225 Difference]: With dead ends: 98 [2018-09-11 19:40:53,024 INFO L226 Difference]: Without dead ends: 0 [2018-09-11 19:40:53,025 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 46 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=139, Invalid=367, Unknown=0, NotChecked=0, Total=506 [2018-09-11 19:40:53,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-11 19:40:53,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-11 19:40:53,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-11 19:40:53,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-11 19:40:53,027 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 38 [2018-09-11 19:40:53,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-11 19:40:53,027 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-11 19:40:53,028 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-09-11 19:40:53,028 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-11 19:40:53,028 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-11 19:40:53,033 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-11 19:40:53,333 WARN L175 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 91 [2018-09-11 19:40:54,229 WARN L175 SmtUtils]: Spent 680.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 37 [2018-09-11 19:40:54,403 WARN L175 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 19 [2018-09-11 19:40:54,486 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-09-11 19:40:54,486 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-09-11 19:40:54,487 INFO L426 ceAbstractionStarter]: For program point __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_invgen_nest_if__true_unreach_call_true_termination_i____VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-09-11 19:40:54,487 INFO L429 ceAbstractionStarter]: At program point __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_invgen_nest_if__true_unreach_call_true_termination_i____VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2018-09-11 19:40:54,487 INFO L426 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-09-11 19:40:54,487 INFO L426 ceAbstractionStarter]: For program point __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_invgen_nest_if__true_unreach_call_true_termination_i____VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2018-09-11 19:40:54,487 INFO L426 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-09-11 19:40:54,487 INFO L426 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2018-09-11 19:40:54,487 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-09-11 19:40:54,488 INFO L429 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-09-11 19:40:54,488 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-09-11 19:40:54,488 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-09-11 19:40:54,488 INFO L426 ceAbstractionStarter]: For program point mainEXIT(lines 10 24) no Hoare annotation was computed. [2018-09-11 19:40:54,488 INFO L426 ceAbstractionStarter]: For program point L21(lines 21 22) no Hoare annotation was computed. [2018-09-11 19:40:54,489 INFO L422 ceAbstractionStarter]: At program point L19(line 19) the Hoare annotation is: (and (<= (+ main_~i~0 1) main_~n~0) (<= main_~l~0 main_~i~0) (<= (* 2 main_~n~0) 1999998) (<= 2 (* 2 main_~k~0)) (<= 2 (* 2 main_~l~0)) (<= (+ main_~k~0 1) main_~n~0)) [2018-09-11 19:40:54,489 INFO L426 ceAbstractionStarter]: For program point L19-1(lines 18 20) no Hoare annotation was computed. [2018-09-11 19:40:54,489 INFO L426 ceAbstractionStarter]: For program point L17-1(lines 17 23) no Hoare annotation was computed. [2018-09-11 19:40:54,489 INFO L426 ceAbstractionStarter]: For program point L15(line 15) no Hoare annotation was computed. [2018-09-11 19:40:54,489 INFO L426 ceAbstractionStarter]: For program point L17-3(lines 17 23) no Hoare annotation was computed. [2018-09-11 19:40:54,490 INFO L422 ceAbstractionStarter]: At program point L17-4(lines 17 23) the Hoare annotation is: (let ((.cse0 (* 2 main_~k~0)) (.cse1 (* 2 main_~n~0))) (let ((.cse4 (<= .cse1 1999998)) (.cse2 (<= 2 .cse0)) (.cse3 (* 2 main_~l~0))) (or (and (<= main_~l~0 (+ main_~k~0 999998)) (<= .cse0 2000000) (<= 2 (* 2 main_~i~0)) (<= 4 .cse1) .cse2 (<= 2 .cse3) (<= main_~i~0 (+ main_~n~0 999997)) .cse4) (and .cse4 (and .cse2 (and (<= .cse3 1999998) (<= .cse0 2))) (<= 2 (+ main_~k~0 main_~l~0)) (<= 0 (+ .cse1 4294967296)))))) [2018-09-11 19:40:54,490 INFO L426 ceAbstractionStarter]: For program point L17-5(lines 10 24) no Hoare annotation was computed. [2018-09-11 19:40:54,490 INFO L429 ceAbstractionStarter]: At program point mainENTRY(lines 10 24) the Hoare annotation is: true [2018-09-11 19:40:54,490 INFO L426 ceAbstractionStarter]: For program point L18-1(lines 18 20) no Hoare annotation was computed. [2018-09-11 19:40:54,490 INFO L426 ceAbstractionStarter]: For program point L16(line 16) no Hoare annotation was computed. [2018-09-11 19:40:54,491 INFO L422 ceAbstractionStarter]: At program point L18-3(lines 18 20) the Hoare annotation is: (and (<= main_~i~0 (+ main_~l~0 1000000)) (<= main_~l~0 main_~i~0) (<= (* 2 main_~n~0) 1999998) (<= main_~i~0 (+ main_~k~0 999998)) (<= 2 (* 2 main_~k~0)) (<= 2 (* 2 main_~l~0)) (<= (+ main_~k~0 1) main_~n~0)) [2018-09-11 19:40:54,491 INFO L426 ceAbstractionStarter]: For program point L14(line 14) no Hoare annotation was computed. [2018-09-11 19:40:54,491 INFO L426 ceAbstractionStarter]: For program point L18-4(lines 18 20) no Hoare annotation was computed. [2018-09-11 19:40:54,501 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.09 07:40:54 BoogieIcfgContainer [2018-09-11 19:40:54,502 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-11 19:40:54,502 INFO L168 Benchmark]: Toolchain (without parser) took 9859.37 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 719.3 MB). Free memory was 1.4 GB in the beginning and 1.6 GB in the end (delta: -220.9 MB). Peak memory consumption was 498.4 MB. Max. memory is 7.1 GB. [2018-09-11 19:40:54,504 INFO L168 Benchmark]: CDTParser took 0.20 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 19:40:54,504 INFO L168 Benchmark]: CACSL2BoogieTranslator took 289.08 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 19:40:54,505 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.53 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 19:40:54,506 INFO L168 Benchmark]: Boogie Preprocessor took 27.34 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 19:40:54,506 INFO L168 Benchmark]: RCFGBuilder took 481.83 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 719.3 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -771.3 MB). Peak memory consumption was 26.5 MB. Max. memory is 7.1 GB. [2018-09-11 19:40:54,507 INFO L168 Benchmark]: TraceAbstraction took 9031.08 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 1.6 GB in the end (delta: 539.8 MB). Peak memory consumption was 539.8 MB. Max. memory is 7.1 GB. [2018-09-11 19:40:54,511 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 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 289.08 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 23.53 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 27.34 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 481.83 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 719.3 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -771.3 MB). Peak memory consumption was 26.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 9031.08 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 1.6 GB in the end (delta: 539.8 MB). Peak memory consumption was 539.8 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: 17]: Loop Invariant Derived loop invariant: (((((((l <= k + 999998 && 2 * k <= 2000000) && 2 <= 2 * i) && 4 <= 2 * n) && 2 <= 2 * k) && 2 <= 2 * l) && i <= n + 999997) && 2 * n <= 1999998) || (((2 * n <= 1999998 && 2 <= 2 * k && 2 * l <= 1999998 && 2 * k <= 2) && 2 <= k + l) && 0 <= 2 * n + 4294967296) - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: (((((i <= l + 1000000 && l <= i) && 2 * n <= 1999998) && i <= k + 999998) && 2 <= 2 * k) && 2 <= 2 * l) && k + 1 <= n - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 27 locations, 1 error locations. SAFE Result, 8.9s OverallTime, 4 OverallIterations, 4 TraceHistogramMax, 4.3s AutomataDifference, 0.0s DeadEndRemovalTime, 1.4s HoareAnnotationTime, HoareTripleCheckerStatistics: 75 SDtfs, 371 SDslu, 462 SDs, 0 SdLazy, 544 SolverSat, 188 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.2s Time, PredicateUnifierStatistics: 8 DeclaredPredicates, 145 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 407 ImplicationChecksByTransitivity, 3.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=89occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.4s AbstIntTime, 4 AbstIntIterations, 4 AbstIntStrong, 0.9432425213675208 AbsIntWeakeningRatio, 0.4423076923076923 AbsIntAvgWeakeningVarsNumRemoved, 5.115384615384615 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 129 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 12 PreInvPairs, 35 NumberOfFragments, 145 HoareAnnotationTreeSize, 12 FomulaSimplifications, 22510 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 8 FomulaSimplificationsInter, 658 FormulaSimplificationTreeSizeReductionInter, 0.9s 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/nest-if3_true-unreach-call_true-termination.i_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-11_19-40-54-525.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/nest-if3_true-unreach-call_true-termination.i_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-11_19-40-54-525.csv Received shutdown request...