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/large_const_true-unreach-call_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-3142e50-m [2018-09-11 19:40:42,261 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-11 19:40:42,263 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-11 19:40:42,281 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-11 19:40:42,282 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-11 19:40:42,283 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-11 19:40:42,285 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-11 19:40:42,287 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-11 19:40:42,289 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-11 19:40:42,291 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-11 19:40:42,292 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-11 19:40:42,293 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-11 19:40:42,293 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-11 19:40:42,294 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-11 19:40:42,295 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-11 19:40:42,296 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-11 19:40:42,297 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-11 19:40:42,299 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-11 19:40:42,301 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-11 19:40:42,303 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-11 19:40:42,304 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-11 19:40:42,305 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-11 19:40:42,308 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-11 19:40:42,308 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-11 19:40:42,308 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-11 19:40:42,309 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-11 19:40:42,310 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-11 19:40:42,311 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-11 19:40:42,312 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-11 19:40:42,313 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-11 19:40:42,313 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-11 19:40:42,314 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-11 19:40:42,314 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-11 19:40:42,314 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-11 19:40:42,315 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-11 19:40:42,316 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-11 19:40:42,316 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 19:40:42,332 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-11 19:40:42,332 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-11 19:40:42,333 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-11 19:40:42,333 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-11 19:40:42,334 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-11 19:40:42,335 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-11 19:40:42,335 INFO L133 SettingsManager]: * Congruence Domain=false [2018-09-11 19:40:42,335 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-11 19:40:42,335 INFO L133 SettingsManager]: * Abstract domain=OctagonDomain [2018-09-11 19:40:42,335 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-11 19:40:42,336 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-11 19:40:42,336 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-11 19:40:42,337 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-11 19:40:42,337 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-11 19:40:42,338 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-11 19:40:42,338 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-11 19:40:42,338 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-11 19:40:42,338 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-11 19:40:42,338 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-11 19:40:42,340 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-11 19:40:42,340 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-11 19:40:42,340 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-11 19:40:42,341 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-11 19:40:42,341 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-11 19:40:42,341 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-11 19:40:42,341 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-11 19:40:42,342 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-11 19:40:42,342 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-11 19:40:42,342 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-11 19:40:42,342 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-11 19:40:42,342 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-11 19:40:42,343 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-11 19:40:42,343 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-11 19:40:42,343 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-11 19:40:42,396 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-11 19:40:42,409 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-11 19:40:42,413 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-11 19:40:42,416 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-11 19:40:42,416 INFO L276 PluginConnector]: CDTParser initialized [2018-09-11 19:40:42,417 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/large_const_true-unreach-call_true-termination.i [2018-09-11 19:40:42,836 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c770d20d0/866dddb1a8c742f898426ba92a12db5a/FLAGaab88af1c [2018-09-11 19:40:42,968 INFO L276 CDTParser]: Found 1 translation units. [2018-09-11 19:40:42,969 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/large_const_true-unreach-call_true-termination.i [2018-09-11 19:40:42,976 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c770d20d0/866dddb1a8c742f898426ba92a12db5a/FLAGaab88af1c [2018-09-11 19:40:42,992 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c770d20d0/866dddb1a8c742f898426ba92a12db5a [2018-09-11 19:40:43,003 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-11 19:40:43,006 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-11 19:40:43,007 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-11 19:40:43,007 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-11 19:40:43,017 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-11 19:40:43,019 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 07:40:42" (1/1) ... [2018-09-11 19:40:43,022 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13303bdb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 07:40:43, skipping insertion in model container [2018-09-11 19:40:43,022 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 07:40:42" (1/1) ... [2018-09-11 19:40:43,184 INFO L180 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-09-11 19:40:43,233 INFO L175 PostProcessor]: Settings: Checked method=main [2018-09-11 19:40:43,256 INFO L431 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-11 19:40:43,274 INFO L175 PostProcessor]: Settings: Checked method=main [2018-09-11 19:40:43,290 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 07:40:43 WrapperNode [2018-09-11 19:40:43,290 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-11 19:40:43,292 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-11 19:40:43,292 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-11 19:40:43,292 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-11 19:40:43,303 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 07:40:43" (1/1) ... [2018-09-11 19:40:43,312 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 07:40:43" (1/1) ... [2018-09-11 19:40:43,319 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-11 19:40:43,320 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-11 19:40:43,320 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-11 19:40:43,320 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-11 19:40:43,336 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 07:40:43" (1/1) ... [2018-09-11 19:40:43,336 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 07:40:43" (1/1) ... [2018-09-11 19:40:43,338 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 07:40:43" (1/1) ... [2018-09-11 19:40:43,339 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 07:40:43" (1/1) ... [2018-09-11 19:40:43,342 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 07:40:43" (1/1) ... [2018-09-11 19:40:43,350 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 07:40:43" (1/1) ... [2018-09-11 19:40:43,352 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 07:40:43" (1/1) ... [2018-09-11 19:40:43,362 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-11 19:40:43,362 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-11 19:40:43,363 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-11 19:40:43,363 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-11 19:40:43,364 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 07:40:43" (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 19:40:43,442 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-11 19:40:43,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-11 19:40:43,442 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_invgen_large_const_true_unreach_call_true_termination_i____VERIFIER_assert [2018-09-11 19:40:43,442 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_invgen_large_const_true_unreach_call_true_termination_i____VERIFIER_assert [2018-09-11 19:40:43,443 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-11 19:40:43,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-11 19:40:43,443 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-11 19:40:43,443 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-11 19:40:44,050 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-11 19:40:44,050 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 07:40:44 BoogieIcfgContainer [2018-09-11 19:40:44,051 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-11 19:40:44,052 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-11 19:40:44,052 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-11 19:40:44,057 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-11 19:40:44,057 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.09 07:40:42" (1/3) ... [2018-09-11 19:40:44,058 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3deef07d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.09 07:40:44, skipping insertion in model container [2018-09-11 19:40:44,058 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 07:40:43" (2/3) ... [2018-09-11 19:40:44,059 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3deef07d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.09 07:40:44, skipping insertion in model container [2018-09-11 19:40:44,059 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 07:40:44" (3/3) ... [2018-09-11 19:40:44,064 INFO L112 eAbstractionObserver]: Analyzing ICFG large_const_true-unreach-call_true-termination.i [2018-09-11 19:40:44,075 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-11 19:40:44,087 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-11 19:40:44,140 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-11 19:40:44,141 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-11 19:40:44,141 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-11 19:40:44,141 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-11 19:40:44,141 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-11 19:40:44,142 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-11 19:40:44,142 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-11 19:40:44,142 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-11 19:40:44,142 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-11 19:40:44,163 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states. [2018-09-11 19:40:44,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-09-11 19:40:44,170 INFO L368 BasicCegarLoop]: Found error trace [2018-09-11 19:40:44,171 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-11 19:40:44,173 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_invgen_large_const_true_unreach_call_true_termination_i____VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-11 19:40:44,179 INFO L82 PathProgramCache]: Analyzing trace with hash 1750555721, now seen corresponding path program 1 times [2018-09-11 19:40:44,182 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-11 19:40:44,183 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 15 with the following transitions: [2018-09-11 19:40:44,186 INFO L202 CegarAbsIntRunner]: [0], [1], [4], [6], [15], [19], [46], [48], [52], [58], [66], [67], [68], [70] [2018-09-11 19:40:44,242 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-11 19:40:44,242 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-11 19:40:44,314 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-11 19:40:44,316 INFO L272 AbstractInterpreter]: Visited 7 different actions 7 times. Never merged. Never widened. Never found a fixpoint. Largest state had 15 variables. [2018-09-11 19:40:44,333 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-11 19:40:44,403 INFO L232 lantSequenceWeakener]: Weakened 2 states. On average, predicates are now at 86.67% of their original sizes. [2018-09-11 19:40:44,403 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-11 19:40:44,458 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-11 19:40:44,460 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-11 19:40:44,460 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-11 19:40:44,461 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-11 19:40:44,467 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-11 19:40:44,475 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-11 19:40:44,476 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-11 19:40:44,479 INFO L87 Difference]: Start difference. First operand 27 states. Second operand 4 states. [2018-09-11 19:40:44,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-11 19:40:44,787 INFO L93 Difference]: Finished difference Result 56 states and 76 transitions. [2018-09-11 19:40:44,789 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-11 19:40:44,790 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2018-09-11 19:40:44,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-11 19:40:44,801 INFO L225 Difference]: With dead ends: 56 [2018-09-11 19:40:44,801 INFO L226 Difference]: Without dead ends: 32 [2018-09-11 19:40:44,807 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 13 GetRequests, 11 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 19:40:44,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2018-09-11 19:40:44,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 22. [2018-09-11 19:40:44,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2018-09-11 19:40:44,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2018-09-11 19:40:44,851 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 25 transitions. Word has length 14 [2018-09-11 19:40:44,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-11 19:40:44,851 INFO L480 AbstractCegarLoop]: Abstraction has 22 states and 25 transitions. [2018-09-11 19:40:44,851 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-11 19:40:44,852 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2018-09-11 19:40:44,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-09-11 19:40:44,852 INFO L368 BasicCegarLoop]: Found error trace [2018-09-11 19:40:44,853 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-11 19:40:44,853 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_invgen_large_const_true_unreach_call_true_termination_i____VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-11 19:40:44,854 INFO L82 PathProgramCache]: Analyzing trace with hash -325731125, now seen corresponding path program 1 times [2018-09-11 19:40:44,854 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-11 19:40:44,854 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 16 with the following transitions: [2018-09-11 19:40:44,854 INFO L202 CegarAbsIntRunner]: [0], [1], [4], [6], [15], [19], [23], [27], [48], [52], [58], [66], [67], [68], [70] [2018-09-11 19:40:44,856 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-11 19:40:44,857 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-11 19:40:44,871 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-11 19:40:44,871 INFO L272 AbstractInterpreter]: Visited 11 different actions 11 times. Never merged. Never widened. Never found a fixpoint. Largest state had 15 variables. [2018-09-11 19:40:44,912 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-11 19:40:44,953 INFO L232 lantSequenceWeakener]: Weakened 6 states. On average, predicates are now at 79.53% of their original sizes. [2018-09-11 19:40:44,953 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-11 19:40:45,126 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-11 19:40:45,127 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-11 19:40:45,127 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-11 19:40:45,127 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-11 19:40:45,130 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-11 19:40:45,130 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-11 19:40:45,130 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-11 19:40:45,131 INFO L87 Difference]: Start difference. First operand 22 states and 25 transitions. Second operand 6 states. [2018-09-11 19:40:45,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-11 19:40:45,482 INFO L93 Difference]: Finished difference Result 37 states and 41 transitions. [2018-09-11 19:40:45,483 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-11 19:40:45,483 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2018-09-11 19:40:45,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-11 19:40:45,484 INFO L225 Difference]: With dead ends: 37 [2018-09-11 19:40:45,484 INFO L226 Difference]: Without dead ends: 24 [2018-09-11 19:40:45,487 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2018-09-11 19:40:45,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2018-09-11 19:40:45,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2018-09-11 19:40:45,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2018-09-11 19:40:45,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 27 transitions. [2018-09-11 19:40:45,500 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 27 transitions. Word has length 15 [2018-09-11 19:40:45,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-11 19:40:45,500 INFO L480 AbstractCegarLoop]: Abstraction has 24 states and 27 transitions. [2018-09-11 19:40:45,502 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-11 19:40:45,502 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 27 transitions. [2018-09-11 19:40:45,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-09-11 19:40:45,504 INFO L368 BasicCegarLoop]: Found error trace [2018-09-11 19:40:45,504 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 19:40:45,504 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_invgen_large_const_true_unreach_call_true_termination_i____VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-11 19:40:45,505 INFO L82 PathProgramCache]: Analyzing trace with hash 1659274082, now seen corresponding path program 1 times [2018-09-11 19:40:45,505 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-11 19:40:45,506 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 20 with the following transitions: [2018-09-11 19:40:45,506 INFO L202 CegarAbsIntRunner]: [0], [1], [4], [6], [15], [19], [23], [27], [29], [33], [36], [48], [52], [58], [66], [67], [68], [70] [2018-09-11 19:40:45,510 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-11 19:40:45,510 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-11 19:40:45,557 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-11 19:40:45,557 INFO L272 AbstractInterpreter]: Visited 17 different actions 23 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 17 variables. [2018-09-11 19:40:45,583 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-11 19:40:45,655 INFO L232 lantSequenceWeakener]: Weakened 12 states. On average, predicates are now at 73.33% of their original sizes. [2018-09-11 19:40:45,656 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-11 19:40:46,215 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-11 19:40:46,215 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-11 19:40:46,215 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-11 19:40:46,216 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-11 19:40:46,216 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-11 19:40:46,217 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-11 19:40:46,217 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2018-09-11 19:40:46,218 INFO L87 Difference]: Start difference. First operand 24 states and 27 transitions. Second operand 12 states. [2018-09-11 19:40:47,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-11 19:40:47,149 INFO L93 Difference]: Finished difference Result 54 states and 64 transitions. [2018-09-11 19:40:47,152 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-09-11 19:40:47,152 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 19 [2018-09-11 19:40:47,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-11 19:40:47,153 INFO L225 Difference]: With dead ends: 54 [2018-09-11 19:40:47,154 INFO L226 Difference]: Without dead ends: 38 [2018-09-11 19:40:47,154 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 21 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2018-09-11 19:40:47,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2018-09-11 19:40:47,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 36. [2018-09-11 19:40:47,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-09-11 19:40:47,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 40 transitions. [2018-09-11 19:40:47,169 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 40 transitions. Word has length 19 [2018-09-11 19:40:47,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-11 19:40:47,170 INFO L480 AbstractCegarLoop]: Abstraction has 36 states and 40 transitions. [2018-09-11 19:40:47,170 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-11 19:40:47,170 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 40 transitions. [2018-09-11 19:40:47,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-09-11 19:40:47,171 INFO L368 BasicCegarLoop]: Found error trace [2018-09-11 19:40:47,171 INFO L376 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-11 19:40:47,171 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_invgen_large_const_true_unreach_call_true_termination_i____VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-11 19:40:47,172 INFO L82 PathProgramCache]: Analyzing trace with hash -1678569579, now seen corresponding path program 1 times [2018-09-11 19:40:47,172 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-11 19:40:47,172 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 21 with the following transitions: [2018-09-11 19:40:47,172 INFO L202 CegarAbsIntRunner]: [0], [1], [4], [6], [15], [19], [23], [27], [29], [33], [38], [41], [48], [52], [58], [66], [67], [68], [70] [2018-09-11 19:40:47,174 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-11 19:40:47,175 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-11 19:40:47,194 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-11 19:40:47,194 INFO L272 AbstractInterpreter]: Visited 18 different actions 24 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 17 variables. [2018-09-11 19:40:47,232 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-11 19:40:47,293 INFO L232 lantSequenceWeakener]: Weakened 13 states. On average, predicates are now at 72.43% of their original sizes. [2018-09-11 19:40:47,294 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-11 19:40:48,099 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-11 19:40:48,100 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-11 19:40:48,100 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-11 19:40:48,100 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-11 19:40:48,101 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-11 19:40:48,101 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-11 19:40:48,102 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2018-09-11 19:40:48,102 INFO L87 Difference]: Start difference. First operand 36 states and 40 transitions. Second operand 13 states. [2018-09-11 19:40:48,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-11 19:40:48,662 INFO L93 Difference]: Finished difference Result 64 states and 74 transitions. [2018-09-11 19:40:48,663 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-11 19:40:48,664 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 20 [2018-09-11 19:40:48,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-11 19:40:48,667 INFO L225 Difference]: With dead ends: 64 [2018-09-11 19:40:48,667 INFO L226 Difference]: Without dead ends: 48 [2018-09-11 19:40:48,668 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 22 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2018-09-11 19:40:48,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2018-09-11 19:40:48,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 37. [2018-09-11 19:40:48,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-09-11 19:40:48,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 42 transitions. [2018-09-11 19:40:48,684 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 42 transitions. Word has length 20 [2018-09-11 19:40:48,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-11 19:40:48,684 INFO L480 AbstractCegarLoop]: Abstraction has 37 states and 42 transitions. [2018-09-11 19:40:48,684 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-11 19:40:48,685 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 42 transitions. [2018-09-11 19:40:48,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-09-11 19:40:48,685 INFO L368 BasicCegarLoop]: Found error trace [2018-09-11 19:40:48,686 INFO L376 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-11 19:40:48,686 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_invgen_large_const_true_unreach_call_true_termination_i____VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-11 19:40:48,686 INFO L82 PathProgramCache]: Analyzing trace with hash -2071596589, now seen corresponding path program 1 times [2018-09-11 19:40:48,686 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-11 19:40:48,687 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 21 with the following transitions: [2018-09-11 19:40:48,687 INFO L202 CegarAbsIntRunner]: [0], [1], [4], [6], [15], [19], [23], [27], [29], [33], [38], [43], [48], [52], [58], [66], [67], [68], [70] [2018-09-11 19:40:48,689 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-11 19:40:48,689 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-11 19:40:48,704 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-11 19:40:48,705 INFO L272 AbstractInterpreter]: Visited 18 different actions 24 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 17 variables. [2018-09-11 19:40:48,744 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-11 19:40:48,804 INFO L232 lantSequenceWeakener]: Weakened 13 states. On average, predicates are now at 72.43% of their original sizes. [2018-09-11 19:40:48,804 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-11 19:40:49,311 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-11 19:40:49,311 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-11 19:40:49,312 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-11 19:40:49,312 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-11 19:40:49,313 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-11 19:40:49,313 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-11 19:40:49,313 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2018-09-11 19:40:49,314 INFO L87 Difference]: Start difference. First operand 37 states and 42 transitions. Second operand 13 states. [2018-09-11 19:40:49,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-11 19:40:49,736 INFO L93 Difference]: Finished difference Result 58 states and 65 transitions. [2018-09-11 19:40:49,738 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-11 19:40:49,738 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 20 [2018-09-11 19:40:49,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-11 19:40:49,739 INFO L225 Difference]: With dead ends: 58 [2018-09-11 19:40:49,739 INFO L226 Difference]: Without dead ends: 42 [2018-09-11 19:40:49,739 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 22 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2018-09-11 19:40:49,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2018-09-11 19:40:49,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 31. [2018-09-11 19:40:49,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2018-09-11 19:40:49,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 33 transitions. [2018-09-11 19:40:49,754 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 33 transitions. Word has length 20 [2018-09-11 19:40:49,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-11 19:40:49,754 INFO L480 AbstractCegarLoop]: Abstraction has 31 states and 33 transitions. [2018-09-11 19:40:49,755 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-11 19:40:49,755 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 33 transitions. [2018-09-11 19:40:49,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-09-11 19:40:49,756 INFO L368 BasicCegarLoop]: Found error trace [2018-09-11 19:40:49,756 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-11 19:40:49,756 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_invgen_large_const_true_unreach_call_true_termination_i____VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-11 19:40:49,756 INFO L82 PathProgramCache]: Analyzing trace with hash 539091162, now seen corresponding path program 1 times [2018-09-11 19:40:49,757 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-11 19:40:49,757 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 28 with the following transitions: [2018-09-11 19:40:49,757 INFO L202 CegarAbsIntRunner]: [0], [1], [4], [6], [9], [11], [15], [19], [23], [27], [29], [33], [36], [48], [52], [58], [60], [66], [67], [68], [70], [71] [2018-09-11 19:40:49,759 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-11 19:40:49,759 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-11 19:40:49,778 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-11 19:40:49,779 INFO L272 AbstractInterpreter]: Visited 21 different actions 38 times. Merged at 8 different actions 11 times. Never widened. Found 2 fixpoints after 2 different actions. Largest state had 19 variables. [2018-09-11 19:40:49,805 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-11 19:40:49,864 INFO L232 lantSequenceWeakener]: Weakened 19 states. On average, predicates are now at 75.47% of their original sizes. [2018-09-11 19:40:49,864 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-11 19:40:50,149 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-11 19:40:50,150 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-11 19:40:50,150 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-11 19:40:50,150 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-11 19:40:50,151 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-11 19:40:50,151 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-11 19:40:50,152 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2018-09-11 19:40:50,152 INFO L87 Difference]: Start difference. First operand 31 states and 33 transitions. Second operand 13 states. [2018-09-11 19:40:50,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-11 19:40:50,676 INFO L93 Difference]: Finished difference Result 54 states and 56 transitions. [2018-09-11 19:40:50,676 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-09-11 19:40:50,676 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 27 [2018-09-11 19:40:50,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-11 19:40:50,679 INFO L225 Difference]: With dead ends: 54 [2018-09-11 19:40:50,679 INFO L226 Difference]: Without dead ends: 31 [2018-09-11 19:40:50,680 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 33 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=72, Invalid=270, Unknown=0, NotChecked=0, Total=342 [2018-09-11 19:40:50,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2018-09-11 19:40:50,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2018-09-11 19:40:50,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2018-09-11 19:40:50,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 32 transitions. [2018-09-11 19:40:50,694 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 32 transitions. Word has length 27 [2018-09-11 19:40:50,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-11 19:40:50,694 INFO L480 AbstractCegarLoop]: Abstraction has 31 states and 32 transitions. [2018-09-11 19:40:50,694 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-11 19:40:50,694 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 32 transitions. [2018-09-11 19:40:50,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-09-11 19:40:50,695 INFO L368 BasicCegarLoop]: Found error trace [2018-09-11 19:40:50,696 INFO L376 BasicCegarLoop]: trace histogram [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 19:40:50,696 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_invgen_large_const_true_unreach_call_true_termination_i____VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-11 19:40:50,696 INFO L82 PathProgramCache]: Analyzing trace with hash -2088465907, now seen corresponding path program 1 times [2018-09-11 19:40:50,696 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-11 19:40:50,697 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 29 with the following transitions: [2018-09-11 19:40:50,697 INFO L202 CegarAbsIntRunner]: [0], [1], [4], [6], [9], [11], [15], [19], [23], [27], [29], [33], [38], [41], [48], [52], [58], [60], [66], [67], [68], [70], [71] [2018-09-11 19:40:50,699 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-11 19:40:50,699 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-11 19:40:50,717 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-11 19:40:50,717 INFO L272 AbstractInterpreter]: Visited 22 different actions 39 times. Merged at 8 different actions 11 times. Never widened. Found 2 fixpoints after 2 different actions. Largest state had 19 variables. [2018-09-11 19:40:50,730 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-11 19:40:50,786 INFO L232 lantSequenceWeakener]: Weakened 20 states. On average, predicates are now at 74.77% of their original sizes. [2018-09-11 19:40:50,786 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-11 19:40:51,045 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-11 19:40:51,046 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-11 19:40:51,046 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-09-11 19:40:51,046 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-11 19:40:51,047 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-11 19:40:51,047 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-11 19:40:51,048 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2018-09-11 19:40:51,048 INFO L87 Difference]: Start difference. First operand 31 states and 32 transitions. Second operand 14 states. [2018-09-11 19:40:51,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-11 19:40:51,490 INFO L93 Difference]: Finished difference Result 54 states and 55 transitions. [2018-09-11 19:40:51,490 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-11 19:40:51,490 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 28 [2018-09-11 19:40:51,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-11 19:40:51,491 INFO L225 Difference]: With dead ends: 54 [2018-09-11 19:40:51,491 INFO L226 Difference]: Without dead ends: 31 [2018-09-11 19:40:51,492 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 34 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=77, Invalid=303, Unknown=0, NotChecked=0, Total=380 [2018-09-11 19:40:51,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2018-09-11 19:40:51,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2018-09-11 19:40:51,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2018-09-11 19:40:51,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 31 transitions. [2018-09-11 19:40:51,502 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 31 transitions. Word has length 28 [2018-09-11 19:40:51,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-11 19:40:51,503 INFO L480 AbstractCegarLoop]: Abstraction has 31 states and 31 transitions. [2018-09-11 19:40:51,503 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-09-11 19:40:51,503 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 31 transitions. [2018-09-11 19:40:51,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-09-11 19:40:51,504 INFO L368 BasicCegarLoop]: Found error trace [2018-09-11 19:40:51,504 INFO L376 BasicCegarLoop]: trace histogram [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 19:40:51,504 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_invgen_large_const_true_unreach_call_true_termination_i____VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-11 19:40:51,504 INFO L82 PathProgramCache]: Analyzing trace with hash 212356683, now seen corresponding path program 1 times [2018-09-11 19:40:51,504 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-11 19:40:51,505 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 29 with the following transitions: [2018-09-11 19:40:51,505 INFO L202 CegarAbsIntRunner]: [0], [1], [4], [6], [9], [11], [15], [19], [23], [27], [29], [33], [38], [43], [48], [52], [58], [60], [66], [67], [68], [70], [71] [2018-09-11 19:40:51,507 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-11 19:40:51,507 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-11 19:40:51,522 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-11 19:40:51,522 INFO L272 AbstractInterpreter]: Visited 22 different actions 39 times. Merged at 8 different actions 11 times. Never widened. Found 2 fixpoints after 2 different actions. Largest state had 19 variables. [2018-09-11 19:40:51,525 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-11 19:40:51,582 INFO L232 lantSequenceWeakener]: Weakened 20 states. On average, predicates are now at 74.77% of their original sizes. [2018-09-11 19:40:51,582 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-11 19:40:51,870 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-11 19:40:51,871 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-11 19:40:51,871 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-09-11 19:40:51,871 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-11 19:40:51,872 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-11 19:40:51,872 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-11 19:40:51,872 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2018-09-11 19:40:51,873 INFO L87 Difference]: Start difference. First operand 31 states and 31 transitions. Second operand 14 states. [2018-09-11 19:40:52,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-11 19:40:52,218 INFO L93 Difference]: Finished difference Result 34 states and 34 transitions. [2018-09-11 19:40:52,218 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-11 19:40:52,219 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 28 [2018-09-11 19:40:52,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-11 19:40:52,219 INFO L225 Difference]: With dead ends: 34 [2018-09-11 19:40:52,219 INFO L226 Difference]: Without dead ends: 0 [2018-09-11 19:40:52,220 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 34 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=77, Invalid=303, Unknown=0, NotChecked=0, Total=380 [2018-09-11 19:40:52,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-11 19:40:52,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-11 19:40:52,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-11 19:40:52,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-11 19:40:52,221 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 28 [2018-09-11 19:40:52,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-11 19:40:52,222 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-11 19:40:52,222 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-09-11 19:40:52,222 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-11 19:40:52,222 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-11 19:40:52,227 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-11 19:40:52,663 WARN L175 SmtUtils]: Spent 374.00 ms on a formula simplification. DAG size of input: 317 DAG size of output: 314 [2018-09-11 19:40:52,953 WARN L175 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 361 DAG size of output: 358 [2018-09-11 19:40:53,102 WARN L175 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 270 DAG size of output: 267 [2018-09-11 19:40:56,926 WARN L175 SmtUtils]: Spent 3.77 s on a formula simplification. DAG size of input: 314 DAG size of output: 32 [2018-09-11 19:40:58,389 WARN L175 SmtUtils]: Spent 1.43 s on a formula simplification. DAG size of input: 358 DAG size of output: 53 [2018-09-11 19:40:59,927 WARN L175 SmtUtils]: Spent 1.54 s on a formula simplification. DAG size of input: 267 DAG size of output: 67 [2018-09-11 19:40:59,930 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-09-11 19:40:59,930 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-09-11 19:40:59,931 INFO L429 ceAbstractionStarter]: At program point __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_invgen_large_const_true_unreach_call_true_termination_i____VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2018-09-11 19:40:59,931 INFO L426 ceAbstractionStarter]: For program point __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_invgen_large_const_true_unreach_call_true_termination_i____VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2018-09-11 19:40:59,931 INFO L426 ceAbstractionStarter]: For program point __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_invgen_large_const_true_unreach_call_true_termination_i____VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-09-11 19:40:59,931 INFO L426 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-09-11 19:40:59,931 INFO L426 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-09-11 19:40:59,931 INFO L426 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2018-09-11 19:40:59,931 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-09-11 19:40:59,931 INFO L429 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-09-11 19:40:59,932 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-09-11 19:40:59,932 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-09-11 19:40:59,932 INFO L422 ceAbstractionStarter]: At program point L33(line 33) the Hoare annotation is: (let ((.cse3 (* 2 main_~c3~0)) (.cse4 (+ main_~j~0 main_~n~0)) (.cse0 (* 2 main_~c1~0)) (.cse1 (* 2 main_~c2~0)) (.cse2 (+ main_~j~0 1))) (and (<= 8000 .cse0) (<= .cse1 4000) (<= .cse2 main_~n~0) (<= 2 (+ main_~k~0 main_~n~0)) (<= .cse3 20000) (<= 20000 .cse3) (<= 1 .cse4) (<= .cse4 1) (<= .cse0 8000) (<= (+ main_~j~0 main_~k~0) 10000) (<= 4000 .cse1) (<= main_~n~0 .cse2))) [2018-09-11 19:40:59,932 INFO L426 ceAbstractionStarter]: For program point L33-1(line 33) no Hoare annotation was computed. [2018-09-11 19:40:59,932 INFO L426 ceAbstractionStarter]: For program point mainEXIT(lines 10 38) no Hoare annotation was computed. [2018-09-11 19:40:59,932 INFO L426 ceAbstractionStarter]: For program point L23(line 23) no Hoare annotation was computed. [2018-09-11 19:40:59,933 INFO L426 ceAbstractionStarter]: For program point L17(line 17) no Hoare annotation was computed. [2018-09-11 19:40:59,933 INFO L426 ceAbstractionStarter]: For program point mainFINAL(lines 10 38) no Hoare annotation was computed. [2018-09-11 19:40:59,933 INFO L426 ceAbstractionStarter]: For program point L32-1(lines 32 36) no Hoare annotation was computed. [2018-09-11 19:40:59,933 INFO L429 ceAbstractionStarter]: At program point mainENTRY(lines 10 38) the Hoare annotation is: true [2018-09-11 19:40:59,933 INFO L422 ceAbstractionStarter]: At program point L32-3(lines 32 36) the Hoare annotation is: (let ((.cse0 (+ main_~j~0 main_~k~0)) (.cse1 (<= main_~n~0 main_~j~0))) (or (and (<= 0 (* 2 main_~i~0)) (<= .cse0 0) (<= main_~i~0 main_~k~0) (<= main_~k~0 main_~n~0) .cse1) (let ((.cse5 (* 2 main_~c3~0)) (.cse2 (* 2 main_~c1~0)) (.cse3 (* 2 main_~c2~0))) (and (<= 8000 .cse2) (<= .cse3 4000) (let ((.cse4 (* 2 main_~j~0))) (or (and (<= 2 (+ main_~j~0 main_~n~0)) (<= 0 (* 2 main_~k~0)) (<= .cse4 2) (<= .cse0 10000) .cse1) (and (<= 0 (* 2 main_~n~0)) (<= main_~k~0 (+ main_~n~0 9999)) (<= .cse4 0) (<= 0 .cse4) (<= main_~n~0 main_~k~0) (<= main_~n~0 (+ main_~j~0 1))))) (<= .cse5 20000) (<= 20000 .cse5) (<= .cse2 8000) (<= 4000 .cse3))))) [2018-09-11 19:40:59,933 INFO L426 ceAbstractionStarter]: For program point L32-4(lines 32 36) no Hoare annotation was computed. [2018-09-11 19:40:59,934 INFO L426 ceAbstractionStarter]: For program point L26(lines 26 29) no Hoare annotation was computed. [2018-09-11 19:40:59,934 INFO L426 ceAbstractionStarter]: For program point L24(lines 24 29) no Hoare annotation was computed. [2018-09-11 19:40:59,934 INFO L422 ceAbstractionStarter]: At program point L26-2(lines 20 30) the Hoare annotation is: (let ((.cse8 (* 2 main_~c3~0)) (.cse10 (* 2 main_~c2~0)) (.cse9 (* 2 main_~c1~0))) (let ((.cse0 (<= 8000 .cse9)) (.cse5 (<= main_~n~0 main_~i~0)) (.cse7 (<= 4000 .cse10)) (.cse1 (<= .cse10 4000)) (.cse6 (<= .cse9 8000)) (.cse3 (<= .cse8 20000)) (.cse4 (<= 20000 .cse8))) (or (and .cse0 .cse1 (let ((.cse2 (+ main_~i~0 9999))) (and (<= main_~i~0 main_~n~0) (<= main_~k~0 .cse2) .cse3 .cse4 (<= main_~c3~0 main_~k~0) .cse5 (<= .cse2 main_~c3~0))) .cse6 .cse7) (and (or (and .cse1 (and (<= (+ main_~c1~0 main_~i~0) 4001) (<= main_~c1~0 (+ main_~i~0 3999)) (<= (+ main_~n~0 3999) main_~k~0) (<= 4001 (+ main_~c1~0 main_~n~0)) (<= (* 2 main_~k~0) 8000)) .cse7) (and .cse0 (or (and (<= main_~k~0 (+ main_~n~0 1999)) (<= (+ main_~c2~0 main_~i~0) 2001) (<= main_~c2~0 main_~k~0) .cse5 .cse7) (and .cse1 (<= 0 (* 2 main_~i~0)) (<= (+ main_~k~0 2000) main_~c2~0) (<= (+ main_~n~0 1991) main_~c2~0) (<= main_~i~0 main_~k~0) (<= main_~k~0 main_~n~0))) .cse6)) .cse3 .cse4)))) [2018-09-11 19:40:59,934 INFO L426 ceAbstractionStarter]: For program point L20-1(lines 20 30) no Hoare annotation was computed. [2018-09-11 19:40:59,934 INFO L426 ceAbstractionStarter]: For program point L20-3(lines 20 30) no Hoare annotation was computed. [2018-09-11 19:40:59,949 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.09 07:40:59 BoogieIcfgContainer [2018-09-11 19:40:59,950 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-11 19:40:59,950 INFO L168 Benchmark]: Toolchain (without parser) took 16947.10 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 885.5 MB). Free memory was 1.4 GB in the beginning and 1.7 GB in the end (delta: -323.4 MB). Peak memory consumption was 625.1 MB. Max. memory is 7.1 GB. [2018-09-11 19:40:59,952 INFO L168 Benchmark]: CDTParser took 0.21 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 19:40:59,952 INFO L168 Benchmark]: CACSL2BoogieTranslator took 283.96 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 19:40:59,953 INFO L168 Benchmark]: Boogie Procedure Inliner took 28.12 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 19:40:59,954 INFO L168 Benchmark]: Boogie Preprocessor took 42.11 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 19:40:59,954 INFO L168 Benchmark]: RCFGBuilder took 688.77 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 737.7 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -784.3 MB). Peak memory consumption was 26.9 MB. Max. memory is 7.1 GB. [2018-09-11 19:40:59,955 INFO L168 Benchmark]: TraceAbstraction took 15897.63 ms. Allocated memory was 2.3 GB in the beginning and 2.4 GB in the end (delta: 147.8 MB). Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 450.3 MB). Peak memory consumption was 661.2 MB. Max. memory is 7.1 GB. [2018-09-11 19:40:59,960 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 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 283.96 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 28.12 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 42.11 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 688.77 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 737.7 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -784.3 MB). Peak memory consumption was 26.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 15897.63 ms. Allocated memory was 2.3 GB in the beginning and 2.4 GB in the end (delta: 147.8 MB). Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 450.3 MB). Peak memory consumption was 661.2 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: 32]: Loop Invariant Derived loop invariant: ((((0 <= 2 * i && j + k <= 0) && i <= k) && k <= n) && n <= j) || ((((((8000 <= 2 * c1 && 2 * c2 <= 4000) && (((((2 <= j + n && 0 <= 2 * k) && 2 * j <= 2) && j + k <= 10000) && n <= j) || (((((0 <= 2 * n && k <= n + 9999) && 2 * j <= 0) && 0 <= 2 * j) && n <= k) && n <= j + 1))) && 2 * c3 <= 20000) && 20000 <= 2 * c3) && 2 * c1 <= 8000) && 4000 <= 2 * c2) - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: ((((8000 <= 2 * c1 && 2 * c2 <= 4000) && (((((i <= n && k <= i + 9999) && 2 * c3 <= 20000) && 20000 <= 2 * c3) && c3 <= k) && n <= i) && i + 9999 <= c3) && 2 * c1 <= 8000) && 4000 <= 2 * c2) || (((((2 * c2 <= 4000 && (((c1 + i <= 4001 && c1 <= i + 3999) && n + 3999 <= k) && 4001 <= c1 + n) && 2 * k <= 8000) && 4000 <= 2 * c2) || ((8000 <= 2 * c1 && (((((k <= n + 1999 && c2 + i <= 2001) && c2 <= k) && n <= i) && 4000 <= 2 * c2) || (((((2 * c2 <= 4000 && 0 <= 2 * i) && k + 2000 <= c2) && n + 1991 <= c2) && i <= k) && k <= n))) && 2 * c1 <= 8000)) && 2 * c3 <= 20000) && 20000 <= 2 * c3) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 27 locations, 1 error locations. SAFE Result, 15.8s OverallTime, 8 OverallIterations, 2 TraceHistogramMax, 3.9s AutomataDifference, 0.0s DeadEndRemovalTime, 7.7s HoareAnnotationTime, HoareTripleCheckerStatistics: 138 SDtfs, 302 SDslu, 562 SDs, 0 SdLazy, 706 SolverSat, 107 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.7s Time, PredicateUnifierStatistics: 16 DeclaredPredicates, 195 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 102 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 308 ImplicationChecksByTransitivity, 3.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.5s AbstIntTime, 8 AbstIntIterations, 8 AbstIntStrong, 0.8744914433322567 AbsIntWeakeningRatio, 1.0797546012269938 AbsIntAvgWeakeningVarsNumRemoved, 17.558282208588956 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 34 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 18 PreInvPairs, 38 NumberOfFragments, 334 HoareAnnotationTreeSize, 18 FomulaSimplifications, 2883 FormulaSimplificationTreeSizeReduction, 0.8s HoareSimplificationTime, 8 FomulaSimplificationsInter, 20854 FormulaSimplificationTreeSizeReductionInter, 6.8s 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/large_const_true-unreach-call_true-termination.i_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-11_19-40-59-976.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/large_const_true-unreach-call_true-termination.i_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-11_19-40-59-976.csv Received shutdown request...