java -Xmx8000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --generate-csv --csv-dir csv -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-invgen/apache-escape-absolute_true-unreach-call_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dd2f093 [2018-07-23 23:38:30,408 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-23 23:38:30,410 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-23 23:38:30,427 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-23 23:38:30,427 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-23 23:38:30,428 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-23 23:38:30,430 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-23 23:38:30,433 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-23 23:38:30,435 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-23 23:38:30,436 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-23 23:38:30,438 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-23 23:38:30,439 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-23 23:38:30,440 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-23 23:38:30,441 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-23 23:38:30,442 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-23 23:38:30,443 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-23 23:38:30,447 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-23 23:38:30,454 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-23 23:38:30,459 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-23 23:38:30,464 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-23 23:38:30,465 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-23 23:38:30,466 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-23 23:38:30,469 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-07-23 23:38:30,482 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2018-07-23 23:38:30,502 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-23 23:38:30,502 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-23 23:38:30,503 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-23 23:38:30,503 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-07-23 23:38:30,504 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-07-23 23:38:30,504 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-07-23 23:38:30,504 INFO L133 SettingsManager]: * Use SBE=true [2018-07-23 23:38:30,504 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-23 23:38:30,504 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-23 23:38:30,505 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-23 23:38:30,505 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-23 23:38:30,505 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-23 23:38:30,505 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-23 23:38:30,505 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-23 23:38:30,506 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-23 23:38:30,506 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-23 23:38:30,506 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-23 23:38:30,506 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-23 23:38:30,506 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-23 23:38:30,507 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-23 23:38:30,507 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-23 23:38:30,507 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-23 23:38:30,507 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-23 23:38:30,507 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-07-23 23:38:30,508 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-23 23:38:30,508 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-23 23:38:30,508 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-23 23:38:30,508 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-23 23:38:30,550 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-23 23:38:30,562 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-23 23:38:30,566 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-23 23:38:30,568 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-23 23:38:30,568 INFO L276 PluginConnector]: CDTParser initialized [2018-07-23 23:38:30,569 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/apache-escape-absolute_true-unreach-call_true-termination.i [2018-07-23 23:38:30,928 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f4d28e3a/9cf2df57ea45440c9f84fa7023f7d836/FLAG5db139232 [2018-07-23 23:38:31,057 INFO L276 CDTParser]: Found 1 translation units. [2018-07-23 23:38:31,058 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute_true-unreach-call_true-termination.i [2018-07-23 23:38:31,065 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f4d28e3a/9cf2df57ea45440c9f84fa7023f7d836/FLAG5db139232 [2018-07-23 23:38:31,080 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f4d28e3a/9cf2df57ea45440c9f84fa7023f7d836 [2018-07-23 23:38:31,090 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-23 23:38:31,092 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-23 23:38:31,093 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-23 23:38:31,093 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-23 23:38:31,099 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-23 23:38:31,101 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 11:38:31" (1/1) ... [2018-07-23 23:38:31,104 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@168740bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:38:31, skipping insertion in model container [2018-07-23 23:38:31,104 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 11:38:31" (1/1) ... [2018-07-23 23:38:31,275 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-23 23:38:31,346 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-23 23:38:31,366 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-23 23:38:31,387 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-23 23:38:31,417 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:38:31 WrapperNode [2018-07-23 23:38:31,417 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-23 23:38:31,418 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-23 23:38:31,418 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-23 23:38:31,418 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-23 23:38:31,429 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:38:31" (1/1) ... [2018-07-23 23:38:31,444 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:38:31" (1/1) ... [2018-07-23 23:38:31,477 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-23 23:38:31,478 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-23 23:38:31,478 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-23 23:38:31,478 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-23 23:38:31,490 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:38:31" (1/1) ... [2018-07-23 23:38:31,490 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:38:31" (1/1) ... [2018-07-23 23:38:31,492 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:38:31" (1/1) ... [2018-07-23 23:38:31,493 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:38:31" (1/1) ... [2018-07-23 23:38:31,507 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:38:31" (1/1) ... [2018-07-23 23:38:31,513 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:38:31" (1/1) ... [2018-07-23 23:38:31,514 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:38:31" (1/1) ... [2018-07-23 23:38:31,516 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-23 23:38:31,517 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-23 23:38:31,517 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-23 23:38:31,517 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-23 23:38:31,518 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:38:31" (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 [2018-07-23 23:38:31,655 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_invgen_apache_escape_absolute_true_unreach_call_true_termination_i____VERIFIER_assert [2018-07-23 23:38:31,656 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_invgen_apache_escape_absolute_true_unreach_call_true_termination_i____VERIFIER_assert [2018-07-23 23:38:31,656 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-23 23:38:31,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-23 23:38:32,211 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-23 23:38:32,212 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 11:38:32 BoogieIcfgContainer [2018-07-23 23:38:32,212 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-23 23:38:32,214 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-23 23:38:32,214 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-23 23:38:32,217 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-23 23:38:32,217 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.07 11:38:31" (1/3) ... [2018-07-23 23:38:32,218 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34354d93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 11:38:32, skipping insertion in model container [2018-07-23 23:38:32,218 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:38:31" (2/3) ... [2018-07-23 23:38:32,219 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34354d93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 11:38:32, skipping insertion in model container [2018-07-23 23:38:32,219 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 11:38:32" (3/3) ... [2018-07-23 23:38:32,221 INFO L112 eAbstractionObserver]: Analyzing ICFG apache-escape-absolute_true-unreach-call_true-termination.i [2018-07-23 23:38:32,231 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-23 23:38:32,239 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-23 23:38:32,286 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-23 23:38:32,286 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-23 23:38:32,287 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-23 23:38:32,287 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-23 23:38:32,287 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-23 23:38:32,287 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-23 23:38:32,287 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-23 23:38:32,288 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-23 23:38:32,288 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-23 23:38:32,311 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states. [2018-07-23 23:38:32,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-07-23 23:38:32,317 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 23:38:32,318 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 23:38:32,318 INFO L414 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_invgen_apache_escape_absolute_true_unreach_call_true_termination_i____VERIFIER_assertErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 23:38:32,324 INFO L82 PathProgramCache]: Analyzing trace with hash -1381615076, now seen corresponding path program 1 times [2018-07-23 23:38:32,326 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-23 23:38:32,327 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-23 23:38:32,378 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:38:32,378 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 23:38:32,378 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:38:32,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 23:38:32,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 23:38:32,572 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 23:38:32,573 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-23 23:38:32,576 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-23 23:38:32,589 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-23 23:38:32,590 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-07-23 23:38:32,593 INFO L87 Difference]: Start difference. First operand 51 states. Second operand 5 states. [2018-07-23 23:38:33,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 23:38:33,196 INFO L93 Difference]: Finished difference Result 112 states and 206 transitions. [2018-07-23 23:38:33,198 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-07-23 23:38:33,199 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2018-07-23 23:38:33,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 23:38:33,211 INFO L225 Difference]: With dead ends: 112 [2018-07-23 23:38:33,212 INFO L226 Difference]: Without dead ends: 63 [2018-07-23 23:38:33,217 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-07-23 23:38:33,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2018-07-23 23:38:33,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 56. [2018-07-23 23:38:33,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2018-07-23 23:38:33,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 79 transitions. [2018-07-23 23:38:33,279 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 79 transitions. Word has length 13 [2018-07-23 23:38:33,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 23:38:33,279 INFO L471 AbstractCegarLoop]: Abstraction has 56 states and 79 transitions. [2018-07-23 23:38:33,279 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-23 23:38:33,280 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 79 transitions. [2018-07-23 23:38:33,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-07-23 23:38:33,281 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 23:38:33,282 INFO L353 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 23:38:33,282 INFO L414 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_invgen_apache_escape_absolute_true_unreach_call_true_termination_i____VERIFIER_assertErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 23:38:33,282 INFO L82 PathProgramCache]: Analyzing trace with hash 734423653, now seen corresponding path program 1 times [2018-07-23 23:38:33,282 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-23 23:38:33,283 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-23 23:38:33,284 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:38:33,284 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 23:38:33,284 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:38:33,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 23:38:33,389 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 23:38:33,390 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 23:38:33,390 INFO L221 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-23 23:38:33,407 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 23:38:33,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 23:38:33,444 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-23 23:38:33,618 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 23:38:33,641 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-23 23:38:33,641 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 9 [2018-07-23 23:38:33,642 INFO L450 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-07-23 23:38:33,642 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-07-23 23:38:33,642 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2018-07-23 23:38:33,643 INFO L87 Difference]: Start difference. First operand 56 states and 79 transitions. Second operand 9 states. [2018-07-23 23:38:34,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 23:38:34,575 INFO L93 Difference]: Finished difference Result 62 states and 84 transitions. [2018-07-23 23:38:34,576 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-23 23:38:34,576 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 18 [2018-07-23 23:38:34,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 23:38:34,579 INFO L225 Difference]: With dead ends: 62 [2018-07-23 23:38:34,579 INFO L226 Difference]: Without dead ends: 60 [2018-07-23 23:38:34,580 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2018-07-23 23:38:34,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2018-07-23 23:38:34,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2018-07-23 23:38:34,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2018-07-23 23:38:34,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 82 transitions. [2018-07-23 23:38:34,598 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 82 transitions. Word has length 18 [2018-07-23 23:38:34,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 23:38:34,599 INFO L471 AbstractCegarLoop]: Abstraction has 60 states and 82 transitions. [2018-07-23 23:38:34,599 INFO L472 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-07-23 23:38:34,599 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 82 transitions. [2018-07-23 23:38:34,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-07-23 23:38:34,604 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 23:38:34,605 INFO L353 BasicCegarLoop]: trace histogram [7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 23:38:34,605 INFO L414 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_invgen_apache_escape_absolute_true_unreach_call_true_termination_i____VERIFIER_assertErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 23:38:34,605 INFO L82 PathProgramCache]: Analyzing trace with hash -821513620, now seen corresponding path program 1 times [2018-07-23 23:38:34,606 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-23 23:38:34,606 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-23 23:38:34,607 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:38:34,607 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 23:38:34,608 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:38:34,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 23:38:34,676 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2018-07-23 23:38:34,676 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 23:38:34,676 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-23 23:38:34,677 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-23 23:38:34,678 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-23 23:38:34,678 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-23 23:38:34,678 INFO L87 Difference]: Start difference. First operand 60 states and 82 transitions. Second operand 3 states. [2018-07-23 23:38:34,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 23:38:34,727 INFO L93 Difference]: Finished difference Result 90 states and 123 transitions. [2018-07-23 23:38:34,727 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-23 23:38:34,727 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 48 [2018-07-23 23:38:34,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 23:38:34,729 INFO L225 Difference]: With dead ends: 90 [2018-07-23 23:38:34,729 INFO L226 Difference]: Without dead ends: 60 [2018-07-23 23:38:34,730 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-23 23:38:34,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2018-07-23 23:38:34,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2018-07-23 23:38:34,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2018-07-23 23:38:34,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 80 transitions. [2018-07-23 23:38:34,744 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 80 transitions. Word has length 48 [2018-07-23 23:38:34,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 23:38:34,745 INFO L471 AbstractCegarLoop]: Abstraction has 60 states and 80 transitions. [2018-07-23 23:38:34,745 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-23 23:38:34,745 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 80 transitions. [2018-07-23 23:38:34,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-07-23 23:38:34,747 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 23:38:34,747 INFO L353 BasicCegarLoop]: trace histogram [7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 23:38:34,747 INFO L414 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_invgen_apache_escape_absolute_true_unreach_call_true_termination_i____VERIFIER_assertErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 23:38:34,747 INFO L82 PathProgramCache]: Analyzing trace with hash -119922776, now seen corresponding path program 1 times [2018-07-23 23:38:34,748 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-23 23:38:34,748 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-23 23:38:34,749 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:38:34,749 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 23:38:34,749 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:38:34,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 23:38:34,967 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 13 proven. 23 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2018-07-23 23:38:34,967 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 23:38:34,968 INFO L221 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-23 23:38:34,986 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 23:38:35,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 23:38:35,017 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-23 23:38:35,111 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2018-07-23 23:38:35,140 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-23 23:38:35,141 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 9 [2018-07-23 23:38:35,141 INFO L450 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-07-23 23:38:35,141 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-07-23 23:38:35,142 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2018-07-23 23:38:35,142 INFO L87 Difference]: Start difference. First operand 60 states and 80 transitions. Second operand 9 states. [2018-07-23 23:38:35,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 23:38:35,697 INFO L93 Difference]: Finished difference Result 68 states and 87 transitions. [2018-07-23 23:38:35,699 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-23 23:38:35,699 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 49 [2018-07-23 23:38:35,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 23:38:35,702 INFO L225 Difference]: With dead ends: 68 [2018-07-23 23:38:35,702 INFO L226 Difference]: Without dead ends: 66 [2018-07-23 23:38:35,703 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 51 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2018-07-23 23:38:35,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2018-07-23 23:38:35,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 64. [2018-07-23 23:38:35,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2018-07-23 23:38:35,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 83 transitions. [2018-07-23 23:38:35,716 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 83 transitions. Word has length 49 [2018-07-23 23:38:35,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 23:38:35,717 INFO L471 AbstractCegarLoop]: Abstraction has 64 states and 83 transitions. [2018-07-23 23:38:35,717 INFO L472 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-07-23 23:38:35,717 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 83 transitions. [2018-07-23 23:38:35,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2018-07-23 23:38:35,721 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 23:38:35,721 INFO L353 BasicCegarLoop]: trace histogram [13, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 23:38:35,721 INFO L414 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_invgen_apache_escape_absolute_true_unreach_call_true_termination_i____VERIFIER_assertErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 23:38:35,722 INFO L82 PathProgramCache]: Analyzing trace with hash 979868916, now seen corresponding path program 1 times [2018-07-23 23:38:35,722 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-23 23:38:35,722 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-23 23:38:35,723 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:38:35,723 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 23:38:35,723 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:38:35,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 23:38:35,965 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 23 proven. 34 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2018-07-23 23:38:35,965 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 23:38:35,965 INFO L221 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-23 23:38:35,976 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 23:38:36,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 23:38:36,012 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-23 23:38:36,089 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2018-07-23 23:38:36,110 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-23 23:38:36,110 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 9 [2018-07-23 23:38:36,111 INFO L450 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-07-23 23:38:36,111 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-07-23 23:38:36,112 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2018-07-23 23:38:36,112 INFO L87 Difference]: Start difference. First operand 64 states and 83 transitions. Second operand 9 states. [2018-07-23 23:38:36,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 23:38:36,608 INFO L93 Difference]: Finished difference Result 75 states and 93 transitions. [2018-07-23 23:38:36,610 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-23 23:38:36,610 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 85 [2018-07-23 23:38:36,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 23:38:36,612 INFO L225 Difference]: With dead ends: 75 [2018-07-23 23:38:36,612 INFO L226 Difference]: Without dead ends: 73 [2018-07-23 23:38:36,612 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 85 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2018-07-23 23:38:36,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2018-07-23 23:38:36,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 68. [2018-07-23 23:38:36,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2018-07-23 23:38:36,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 86 transitions. [2018-07-23 23:38:36,626 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 86 transitions. Word has length 85 [2018-07-23 23:38:36,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 23:38:36,626 INFO L471 AbstractCegarLoop]: Abstraction has 68 states and 86 transitions. [2018-07-23 23:38:36,627 INFO L472 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-07-23 23:38:36,627 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 86 transitions. [2018-07-23 23:38:36,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2018-07-23 23:38:36,635 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 23:38:36,635 INFO L353 BasicCegarLoop]: trace histogram [14, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 23:38:36,636 INFO L414 AbstractCegarLoop]: === Iteration 6 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_invgen_apache_escape_absolute_true_unreach_call_true_termination_i____VERIFIER_assertErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 23:38:36,636 INFO L82 PathProgramCache]: Analyzing trace with hash 482368269, now seen corresponding path program 1 times [2018-07-23 23:38:36,636 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-23 23:38:36,636 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-23 23:38:36,637 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:38:36,640 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 23:38:36,640 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:38:36,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 23:38:36,836 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 25 proven. 37 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2018-07-23 23:38:36,836 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 23:38:36,836 INFO L221 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-23 23:38:36,845 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 23:38:36,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 23:38:36,881 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-23 23:38:36,953 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2018-07-23 23:38:36,974 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-23 23:38:36,974 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 10 [2018-07-23 23:38:36,975 INFO L450 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-07-23 23:38:36,975 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-07-23 23:38:36,975 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2018-07-23 23:38:36,975 INFO L87 Difference]: Start difference. First operand 68 states and 86 transitions. Second operand 10 states. [2018-07-23 23:38:37,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 23:38:37,367 INFO L93 Difference]: Finished difference Result 75 states and 96 transitions. [2018-07-23 23:38:37,367 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-23 23:38:37,367 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 90 [2018-07-23 23:38:37,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 23:38:37,369 INFO L225 Difference]: With dead ends: 75 [2018-07-23 23:38:37,369 INFO L226 Difference]: Without dead ends: 0 [2018-07-23 23:38:37,370 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2018-07-23 23:38:37,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-07-23 23:38:37,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-07-23 23:38:37,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-07-23 23:38:37,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-07-23 23:38:37,372 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 90 [2018-07-23 23:38:37,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 23:38:37,372 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-07-23 23:38:37,372 INFO L472 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-07-23 23:38:37,372 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-07-23 23:38:37,372 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-07-23 23:38:37,378 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-07-23 23:38:37,453 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:38:37,454 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:38:37,700 WARN L169 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2018-07-23 23:38:37,803 WARN L169 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2018-07-23 23:38:37,929 WARN L169 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2018-07-23 23:38:38,103 WARN L169 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2018-07-23 23:38:38,455 WARN L169 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2018-07-23 23:38:38,457 INFO L421 ceAbstractionStarter]: For program point __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_invgen_apache_escape_absolute_true_unreach_call_true_termination_i____VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2018-07-23 23:38:38,458 INFO L424 ceAbstractionStarter]: At program point __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_invgen_apache_escape_absolute_true_unreach_call_true_termination_i____VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2018-07-23 23:38:38,458 INFO L421 ceAbstractionStarter]: For program point __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_invgen_apache_escape_absolute_true_unreach_call_true_termination_i____VERIFIER_assertErr0AssertViolationERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-07-23 23:38:38,458 INFO L421 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-07-23 23:38:38,458 INFO L421 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-07-23 23:38:38,459 INFO L421 ceAbstractionStarter]: For program point L4''(lines 3 8) no Hoare annotation was computed. [2018-07-23 23:38:38,459 INFO L424 ceAbstractionStarter]: At program point L67(lines 11 69) the Hoare annotation is: true [2018-07-23 23:38:38,459 INFO L424 ceAbstractionStarter]: At program point L68(lines 10 69) the Hoare annotation is: true [2018-07-23 23:38:38,459 INFO L417 ceAbstractionStarter]: At program point L35'(line 35) the Hoare annotation is: (let ((.cse0 (+ ULTIMATE.start_main_~cp~0 1))) (and (not (= ULTIMATE.start_main_~urilen~0 .cse0)) (<= .cse0 ULTIMATE.start_main_~urilen~0) (<= 1 ULTIMATE.start_main_~cp~0) (<= 0 ULTIMATE.start_main_~scheme~0))) [2018-07-23 23:38:38,459 INFO L417 ceAbstractionStarter]: At program point L49'(line 49) the Hoare annotation is: (let ((.cse0 (+ ULTIMATE.start_main_~cp~0 1))) (and (= ULTIMATE.start_main_~c~0 0) (not (= ULTIMATE.start_main_~urilen~0 .cse0)) (<= .cse0 ULTIMATE.start_main_~urilen~0) (<= 1 ULTIMATE.start_main_~cp~0) (<= 0 ULTIMATE.start_main_~scheme~0))) [2018-07-23 23:38:38,460 INFO L421 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-07-23 23:38:38,460 INFO L417 ceAbstractionStarter]: At program point L53'(line 53) the Hoare annotation is: (let ((.cse5 (+ ULTIMATE.start_main_~cp~0 1))) (let ((.cse0 (<= (+ ULTIMATE.start_main_~c~0 2) ULTIMATE.start_main_~tokenlen~0)) (.cse1 (not (= ULTIMATE.start_main_~urilen~0 .cse5))) (.cse2 (<= .cse5 ULTIMATE.start_main_~urilen~0)) (.cse3 (<= 1 ULTIMATE.start_main_~cp~0)) (.cse4 (<= 0 ULTIMATE.start_main_~scheme~0))) (or (and (= ULTIMATE.start_main_~c~0 0) .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse1 .cse2 .cse3 .cse4 (<= 1 ULTIMATE.start_main_~c~0))))) [2018-07-23 23:38:38,460 INFO L421 ceAbstractionStarter]: For program point L18(line 18) no Hoare annotation was computed. [2018-07-23 23:38:38,460 INFO L421 ceAbstractionStarter]: For program point L19(line 19) no Hoare annotation was computed. [2018-07-23 23:38:38,461 INFO L421 ceAbstractionStarter]: For program point L21(line 21) no Hoare annotation was computed. [2018-07-23 23:38:38,461 INFO L421 ceAbstractionStarter]: For program point L20(line 20) no Hoare annotation was computed. [2018-07-23 23:38:38,461 INFO L421 ceAbstractionStarter]: For program point L23(lines 11 69) no Hoare annotation was computed. [2018-07-23 23:38:38,461 INFO L421 ceAbstractionStarter]: For program point L22(lines 11 69) no Hoare annotation was computed. [2018-07-23 23:38:38,461 INFO L417 ceAbstractionStarter]: At program point L33'''(lines 33 38) the Hoare annotation is: (and (<= (+ ULTIMATE.start_main_~cp~0 1) ULTIMATE.start_main_~urilen~0) (<= 1 ULTIMATE.start_main_~cp~0) (<= 0 ULTIMATE.start_main_~scheme~0)) [2018-07-23 23:38:38,462 INFO L417 ceAbstractionStarter]: At program point L51''(lines 50 63) the Hoare annotation is: (let ((.cse0 (<= (+ ULTIMATE.start_main_~cp~0 1) ULTIMATE.start_main_~urilen~0)) (.cse1 (<= 1 ULTIMATE.start_main_~cp~0)) (.cse2 (<= 0 ULTIMATE.start_main_~scheme~0))) (or (and .cse0 .cse1 .cse2 (<= 1 ULTIMATE.start_main_~c~0)) (and (= ULTIMATE.start_main_~c~0 0) .cse0 .cse1 .cse2))) [2018-07-23 23:38:38,462 INFO L421 ceAbstractionStarter]: For program point L29(line 29) no Hoare annotation was computed. [2018-07-23 23:38:38,462 INFO L417 ceAbstractionStarter]: At program point L28(line 28) the Hoare annotation is: (and (<= (+ ULTIMATE.start_main_~cp~0 1) ULTIMATE.start_main_~urilen~0) (<= 1 ULTIMATE.start_main_~cp~0) (<= 0 ULTIMATE.start_main_~scheme~0)) [2018-07-23 23:38:38,462 INFO L421 ceAbstractionStarter]: For program point L55'(lines 55 61) no Hoare annotation was computed. [2018-07-23 23:38:38,462 INFO L417 ceAbstractionStarter]: At program point L31'(line 31) the Hoare annotation is: (and (<= (+ ULTIMATE.start_main_~cp~0 1) ULTIMATE.start_main_~urilen~0) (<= 1 ULTIMATE.start_main_~cp~0) (<= 0 ULTIMATE.start_main_~scheme~0)) [2018-07-23 23:38:38,462 INFO L421 ceAbstractionStarter]: For program point L30(lines 30 66) no Hoare annotation was computed. [2018-07-23 23:38:38,463 INFO L417 ceAbstractionStarter]: At program point L31(line 31) the Hoare annotation is: (and (<= (+ ULTIMATE.start_main_~cp~0 1) ULTIMATE.start_main_~urilen~0) (<= 1 ULTIMATE.start_main_~cp~0) (<= 0 ULTIMATE.start_main_~scheme~0)) [2018-07-23 23:38:38,463 INFO L421 ceAbstractionStarter]: For program point L34(line 34) no Hoare annotation was computed. [2018-07-23 23:38:38,463 INFO L421 ceAbstractionStarter]: For program point L33(lines 33 38) no Hoare annotation was computed. [2018-07-23 23:38:38,463 INFO L421 ceAbstractionStarter]: For program point L36(line 36) no Hoare annotation was computed. [2018-07-23 23:38:38,463 INFO L417 ceAbstractionStarter]: At program point L35(line 35) the Hoare annotation is: (let ((.cse0 (+ ULTIMATE.start_main_~cp~0 1))) (and (not (= ULTIMATE.start_main_~urilen~0 .cse0)) (<= .cse0 ULTIMATE.start_main_~urilen~0) (<= 1 ULTIMATE.start_main_~cp~0) (<= 0 ULTIMATE.start_main_~scheme~0))) [2018-07-23 23:38:38,463 INFO L417 ceAbstractionStarter]: At program point L39(line 39) the Hoare annotation is: (and (<= (+ ULTIMATE.start_main_~cp~0 1) ULTIMATE.start_main_~urilen~0) (<= 1 ULTIMATE.start_main_~cp~0) (<= 0 ULTIMATE.start_main_~scheme~0)) [2018-07-23 23:38:38,464 INFO L421 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-07-23 23:38:38,464 INFO L417 ceAbstractionStarter]: At program point L42'(line 42) the Hoare annotation is: (let ((.cse0 (+ ULTIMATE.start_main_~cp~0 1))) (and (not (= ULTIMATE.start_main_~urilen~0 .cse0)) (<= .cse0 ULTIMATE.start_main_~urilen~0) (<= 1 ULTIMATE.start_main_~cp~0) (<= 0 ULTIMATE.start_main_~scheme~0))) [2018-07-23 23:38:38,464 INFO L421 ceAbstractionStarter]: For program point L40(lines 30 66) no Hoare annotation was computed. [2018-07-23 23:38:38,464 INFO L417 ceAbstractionStarter]: At program point L33''(lines 32 38) the Hoare annotation is: (and (<= (+ ULTIMATE.start_main_~cp~0 1) ULTIMATE.start_main_~urilen~0) (<= 1 ULTIMATE.start_main_~cp~0) (<= 0 ULTIMATE.start_main_~scheme~0)) [2018-07-23 23:38:38,464 INFO L421 ceAbstractionStarter]: For program point L43(lines 30 66) no Hoare annotation was computed. [2018-07-23 23:38:38,465 INFO L417 ceAbstractionStarter]: At program point L42(line 42) the Hoare annotation is: (let ((.cse0 (+ ULTIMATE.start_main_~cp~0 1))) (and (not (= ULTIMATE.start_main_~urilen~0 .cse0)) (<= .cse0 ULTIMATE.start_main_~urilen~0) (<= 1 ULTIMATE.start_main_~cp~0) (<= 0 ULTIMATE.start_main_~scheme~0))) [2018-07-23 23:38:38,465 INFO L421 ceAbstractionStarter]: For program point L47(lines 47 65) no Hoare annotation was computed. [2018-07-23 23:38:38,465 INFO L417 ceAbstractionStarter]: At program point L49(line 49) the Hoare annotation is: (let ((.cse0 (+ ULTIMATE.start_main_~cp~0 1))) (and (= ULTIMATE.start_main_~c~0 0) (not (= ULTIMATE.start_main_~urilen~0 .cse0)) (<= .cse0 ULTIMATE.start_main_~urilen~0) (<= 1 ULTIMATE.start_main_~cp~0) (<= 0 ULTIMATE.start_main_~scheme~0))) [2018-07-23 23:38:38,465 INFO L421 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2018-07-23 23:38:38,465 INFO L417 ceAbstractionStarter]: At program point L57'(line 57) the Hoare annotation is: (let ((.cse0 (+ ULTIMATE.start_main_~cp~0 1))) (and (not (= ULTIMATE.start_main_~urilen~0 .cse0)) (<= (+ ULTIMATE.start_main_~c~0 1) ULTIMATE.start_main_~tokenlen~0) (<= .cse0 ULTIMATE.start_main_~urilen~0) (<= 1 ULTIMATE.start_main_~cp~0) (<= 0 ULTIMATE.start_main_~scheme~0) (<= 1 ULTIMATE.start_main_~c~0))) [2018-07-23 23:38:38,466 INFO L421 ceAbstractionStarter]: For program point L21'(lines 11 69) no Hoare annotation was computed. [2018-07-23 23:38:38,466 INFO L421 ceAbstractionStarter]: For program point L51(lines 51 63) no Hoare annotation was computed. [2018-07-23 23:38:38,466 INFO L421 ceAbstractionStarter]: For program point L54(line 54) no Hoare annotation was computed. [2018-07-23 23:38:38,466 INFO L417 ceAbstractionStarter]: At program point L53(line 53) the Hoare annotation is: (let ((.cse5 (+ ULTIMATE.start_main_~cp~0 1))) (let ((.cse0 (<= (+ ULTIMATE.start_main_~c~0 2) ULTIMATE.start_main_~tokenlen~0)) (.cse1 (not (= ULTIMATE.start_main_~urilen~0 .cse5))) (.cse2 (<= .cse5 ULTIMATE.start_main_~urilen~0)) (.cse3 (<= 1 ULTIMATE.start_main_~cp~0)) (.cse4 (<= 0 ULTIMATE.start_main_~scheme~0))) (or (and (= ULTIMATE.start_main_~c~0 0) .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse1 .cse2 .cse3 .cse4 (<= 1 ULTIMATE.start_main_~c~0))))) [2018-07-23 23:38:38,466 INFO L421 ceAbstractionStarter]: For program point L55(lines 55 61) no Hoare annotation was computed. [2018-07-23 23:38:38,467 INFO L417 ceAbstractionStarter]: At program point L58(line 58) the Hoare annotation is: (let ((.cse0 (+ ULTIMATE.start_main_~cp~0 1))) (and (not (= ULTIMATE.start_main_~urilen~0 .cse0)) (<= (+ ULTIMATE.start_main_~c~0 1) ULTIMATE.start_main_~tokenlen~0) (<= .cse0 ULTIMATE.start_main_~urilen~0) (<= 1 ULTIMATE.start_main_~cp~0) (<= 0 ULTIMATE.start_main_~scheme~0) (<= 1 ULTIMATE.start_main_~c~0))) [2018-07-23 23:38:38,467 INFO L417 ceAbstractionStarter]: At program point L57(line 57) the Hoare annotation is: (let ((.cse0 (+ ULTIMATE.start_main_~cp~0 1))) (and (not (= ULTIMATE.start_main_~urilen~0 .cse0)) (<= (+ ULTIMATE.start_main_~c~0 1) ULTIMATE.start_main_~tokenlen~0) (<= .cse0 ULTIMATE.start_main_~urilen~0) (<= 1 ULTIMATE.start_main_~cp~0) (<= 0 ULTIMATE.start_main_~scheme~0) (<= 1 ULTIMATE.start_main_~c~0))) [2018-07-23 23:38:38,467 INFO L421 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2018-07-23 23:38:38,467 INFO L417 ceAbstractionStarter]: At program point L59(line 59) the Hoare annotation is: (let ((.cse0 (+ ULTIMATE.start_main_~cp~0 1))) (and (not (= ULTIMATE.start_main_~urilen~0 .cse0)) (<= (+ ULTIMATE.start_main_~c~0 1) ULTIMATE.start_main_~tokenlen~0) (<= .cse0 ULTIMATE.start_main_~urilen~0) (<= 1 ULTIMATE.start_main_~cp~0) (<= 0 ULTIMATE.start_main_~scheme~0) (<= 1 ULTIMATE.start_main_~c~0))) [2018-07-23 23:38:38,468 INFO L417 ceAbstractionStarter]: At program point L28'(line 28) the Hoare annotation is: (and (<= (+ ULTIMATE.start_main_~cp~0 1) ULTIMATE.start_main_~urilen~0) (<= 1 ULTIMATE.start_main_~cp~0) (<= 0 ULTIMATE.start_main_~scheme~0)) [2018-07-23 23:38:38,482 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.07 11:38:38 BoogieIcfgContainer [2018-07-23 23:38:38,483 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-23 23:38:38,484 INFO L168 Benchmark]: Toolchain (without parser) took 7392.62 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 732.4 MB). Free memory was 1.4 GB in the beginning and 1.8 GB in the end (delta: -386.9 MB). Peak memory consumption was 345.5 MB. Max. memory is 7.1 GB. [2018-07-23 23:38:38,485 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-23 23:38:38,486 INFO L168 Benchmark]: CACSL2BoogieTranslator took 324.60 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. [2018-07-23 23:38:38,487 INFO L168 Benchmark]: Boogie Procedure Inliner took 59.33 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. [2018-07-23 23:38:38,487 INFO L168 Benchmark]: Boogie Preprocessor took 39.16 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. [2018-07-23 23:38:38,488 INFO L168 Benchmark]: RCFGBuilder took 695.60 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 732.4 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -778.3 MB). Peak memory consumption was 27.1 MB. Max. memory is 7.1 GB. [2018-07-23 23:38:38,489 INFO L168 Benchmark]: TraceAbstraction took 6269.28 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.8 GB in the end (delta: 380.8 MB). Peak memory consumption was 380.8 MB. Max. memory is 7.1 GB. [2018-07-23 23:38:38,494 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 324.60 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 59.33 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 39.16 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 695.60 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 732.4 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -778.3 MB). Peak memory consumption was 27.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 6269.28 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.8 GB in the end (delta: 380.8 MB). Peak memory consumption was 380.8 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: 10]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 50]: Loop Invariant Derived loop invariant: (((cp + 1 <= urilen && 1 <= cp) && 0 <= scheme) && 1 <= c) || (((c == 0 && cp + 1 <= urilen) && 1 <= cp) && 0 <= scheme) - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: (cp + 1 <= urilen && 1 <= cp) && 0 <= scheme - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 51 locations, 1 error locations. SAFE Result, 6.1s OverallTime, 6 OverallIterations, 14 TraceHistogramMax, 3.0s AutomataDifference, 0.0s DeadEndRemovalTime, 1.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 323 SDtfs, 122 SDslu, 1030 SDs, 0 SdLazy, 939 SolverSat, 90 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 295 GetRequests, 248 SyntacticMatches, 4 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=68occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 14 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 23 LocationsWithAnnotation, 73 PreInvPairs, 101 NumberOfFragments, 442 HoareAnnotationTreeSize, 73 FomulaSimplifications, 216 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 23 FomulaSimplificationsInter, 13 FormulaSimplificationTreeSizeReductionInter, 0.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 545 NumberOfCodeBlocks, 545 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 535 ConstructedInterpolants, 0 QuantifiedInterpolants, 57337 SizeOfPredicates, 10 NumberOfNonLiveVariables, 475 ConjunctsInSsa, 34 ConjunctsInUnsatCore, 10 InterpolantComputations, 6 PerfectInterpolantSequences, 1377/1472 InterpolantCoveringCapability, 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/apache-escape-absolute_true-unreach-call_true-termination.i_svcomp-Reach-64bit-Automizer_Default.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-23_23-38-38-509.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/apache-escape-absolute_true-unreach-call_true-termination.i_svcomp-Reach-64bit-Automizer_Default.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-23_23-38-38-509.csv Received shutdown request...