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/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf -i ../../../trunk/examples/svcomp/loop-invgen/apache-escape-absolute_true-unreach-call_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dd2f093 [2018-07-24 10:53:52,163 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-24 10:53:52,165 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-24 10:53:52,178 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-24 10:53:52,178 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-24 10:53:52,179 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-24 10:53:52,180 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-24 10:53:52,182 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-24 10:53:52,184 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-24 10:53:52,185 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-24 10:53:52,186 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-24 10:53:52,186 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-24 10:53:52,187 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-24 10:53:52,188 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-24 10:53:52,189 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-24 10:53:52,190 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-24 10:53:52,191 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-24 10:53:52,192 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-24 10:53:52,194 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-24 10:53:52,196 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-24 10:53:52,197 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-24 10:53:52,198 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-24 10:53:52,200 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-24 10:53:52,201 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-24 10:53:52,201 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-24 10:53:52,202 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-24 10:53:52,203 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-24 10:53:52,204 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-24 10:53:52,204 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-24 10:53:52,206 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-24 10:53:52,206 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-24 10:53:52,206 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-24 10:53:52,207 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-24 10:53:52,207 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-24 10:53:52,208 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-24 10:53:52,209 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-24 10:53:52,209 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf [2018-07-24 10:53:52,227 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-24 10:53:52,227 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-24 10:53:52,228 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-24 10:53:52,228 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-24 10:53:52,228 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-24 10:53:52,228 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-24 10:53:52,229 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-24 10:53:52,229 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-24 10:53:52,229 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-24 10:53:52,229 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-24 10:53:52,232 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-24 10:53:52,233 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-24 10:53:52,233 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-24 10:53:52,233 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-24 10:53:52,233 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-24 10:53:52,234 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-24 10:53:52,234 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-24 10:53:52,234 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-24 10:53:52,234 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-24 10:53:52,236 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-24 10:53:52,236 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-24 10:53:52,237 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-24 10:53:52,237 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-24 10:53:52,237 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-24 10:53:52,237 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-24 10:53:52,237 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-24 10:53:52,238 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-24 10:53:52,238 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-07-24 10:53:52,238 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-24 10:53:52,238 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-24 10:53:52,238 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-24 10:53:52,239 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-24 10:53:52,239 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-24 10:53:52,303 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-24 10:53:52,319 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-24 10:53:52,324 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-24 10:53:52,326 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-24 10:53:52,326 INFO L276 PluginConnector]: CDTParser initialized [2018-07-24 10:53:52,327 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/apache-escape-absolute_true-unreach-call_true-termination.i [2018-07-24 10:53:52,672 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/346e4ba82/7da73e1227f24cb0b4797486e126c02d/FLAG1a5c60647 [2018-07-24 10:53:52,795 INFO L276 CDTParser]: Found 1 translation units. [2018-07-24 10:53:52,796 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute_true-unreach-call_true-termination.i [2018-07-24 10:53:52,803 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/346e4ba82/7da73e1227f24cb0b4797486e126c02d/FLAG1a5c60647 [2018-07-24 10:53:52,818 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/346e4ba82/7da73e1227f24cb0b4797486e126c02d [2018-07-24 10:53:52,827 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-24 10:53:52,829 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-24 10:53:52,830 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-24 10:53:52,830 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-24 10:53:52,836 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-24 10:53:52,837 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 10:53:52" (1/1) ... [2018-07-24 10:53:52,840 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a6c6b25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 10:53:52, skipping insertion in model container [2018-07-24 10:53:52,840 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 10:53:52" (1/1) ... [2018-07-24 10:53:53,010 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-24 10:53:53,082 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 10:53:53,098 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-24 10:53:53,111 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 10:53:53,128 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 10:53:53 WrapperNode [2018-07-24 10:53:53,128 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-24 10:53:53,129 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-24 10:53:53,129 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-24 10:53:53,129 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-24 10:53:53,143 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 10:53:53" (1/1) ... [2018-07-24 10:53:53,151 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 10:53:53" (1/1) ... [2018-07-24 10:53:53,158 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-24 10:53:53,158 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-24 10:53:53,159 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-24 10:53:53,159 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-24 10:53:53,170 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 10:53:53" (1/1) ... [2018-07-24 10:53:53,170 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 10:53:53" (1/1) ... [2018-07-24 10:53:53,178 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 10:53:53" (1/1) ... [2018-07-24 10:53:53,178 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 10:53:53" (1/1) ... [2018-07-24 10:53:53,185 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 10:53:53" (1/1) ... [2018-07-24 10:53:53,197 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 10:53:53" (1/1) ... [2018-07-24 10:53:53,198 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 10:53:53" (1/1) ... [2018-07-24 10:53:53,202 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-24 10:53:53,202 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-24 10:53:53,203 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-24 10:53:53,203 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-24 10:53:53,204 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 10:53:53" (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 [2018-07-24 10:53:53,279 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-24 10:53:53,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-24 10:53:53,280 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 [2018-07-24 10:53:53,280 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 [2018-07-24 10:53:53,280 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-24 10:53:53,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-24 10:53:53,280 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-24 10:53:53,281 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-24 10:53:53,919 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-24 10:53:53,919 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 10:53:53 BoogieIcfgContainer [2018-07-24 10:53:53,920 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-24 10:53:53,921 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-24 10:53:53,921 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-24 10:53:53,924 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-24 10:53:53,925 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.07 10:53:52" (1/3) ... [2018-07-24 10:53:53,926 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a1690d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 10:53:53, skipping insertion in model container [2018-07-24 10:53:53,926 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 10:53:53" (2/3) ... [2018-07-24 10:53:53,926 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a1690d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 10:53:53, skipping insertion in model container [2018-07-24 10:53:53,927 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 10:53:53" (3/3) ... [2018-07-24 10:53:53,929 INFO L112 eAbstractionObserver]: Analyzing ICFG apache-escape-absolute_true-unreach-call_true-termination.i [2018-07-24 10:53:53,938 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-24 10:53:53,953 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-24 10:53:54,010 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-24 10:53:54,011 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-24 10:53:54,011 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-24 10:53:54,012 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-24 10:53:54,012 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-24 10:53:54,012 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-24 10:53:54,012 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-24 10:53:54,012 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-24 10:53:54,012 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-24 10:53:54,032 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states. [2018-07-24 10:53:54,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-07-24 10:53:54,038 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 10:53:54,038 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 10:53:54,039 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]=== [2018-07-24 10:53:54,044 INFO L82 PathProgramCache]: Analyzing trace with hash -2143096435, now seen corresponding path program 1 times [2018-07-24 10:53:54,047 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 10:53:54,098 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 10:53:54,099 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 10:53:54,099 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 10:53:54,099 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 10:53:54,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 10:53:54,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 10:53:54,256 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 10:53:54,256 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-24 10:53:54,256 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 10:53:54,260 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 10:53:54,272 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 10:53:54,272 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-07-24 10:53:54,275 INFO L87 Difference]: Start difference. First operand 55 states. Second operand 5 states. [2018-07-24 10:53:54,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 10:53:54,777 INFO L93 Difference]: Finished difference Result 116 states and 211 transitions. [2018-07-24 10:53:54,780 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-07-24 10:53:54,781 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2018-07-24 10:53:54,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 10:53:54,791 INFO L225 Difference]: With dead ends: 116 [2018-07-24 10:53:54,792 INFO L226 Difference]: Without dead ends: 66 [2018-07-24 10:53:54,796 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-07-24 10:53:54,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2018-07-24 10:53:54,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 59. [2018-07-24 10:53:54,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2018-07-24 10:53:54,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 82 transitions. [2018-07-24 10:53:54,856 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 82 transitions. Word has length 16 [2018-07-24 10:53:54,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 10:53:54,856 INFO L471 AbstractCegarLoop]: Abstraction has 59 states and 82 transitions. [2018-07-24 10:53:54,857 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 10:53:54,857 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 82 transitions. [2018-07-24 10:53:54,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-07-24 10:53:54,859 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 10:53:54,859 INFO L353 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 10:53:54,859 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]=== [2018-07-24 10:53:54,860 INFO L82 PathProgramCache]: Analyzing trace with hash -1570356907, now seen corresponding path program 1 times [2018-07-24 10:53:54,860 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 10:53:54,861 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 10:53:54,862 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 10:53:54,862 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 10:53:54,862 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 10:53:54,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 10:53:55,223 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 10:53:55,223 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 10:53:55,223 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG 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 [2018-07-24 10:53:55,237 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 10:53:55,237 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 10:53:55,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 10:53:55,260 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 10:53:55,424 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 10:53:55,424 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 10:53:55,517 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 10:53:55,538 INFO L309 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-07-24 10:53:55,538 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [7] total 9 [2018-07-24 10:53:55,540 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 10:53:55,540 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-24 10:53:55,541 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-24 10:53:55,541 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2018-07-24 10:53:55,542 INFO L87 Difference]: Start difference. First operand 59 states and 82 transitions. Second operand 6 states. [2018-07-24 10:53:56,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 10:53:56,161 INFO L93 Difference]: Finished difference Result 65 states and 87 transitions. [2018-07-24 10:53:56,162 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-07-24 10:53:56,163 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 21 [2018-07-24 10:53:56,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 10:53:56,166 INFO L225 Difference]: With dead ends: 65 [2018-07-24 10:53:56,167 INFO L226 Difference]: Without dead ends: 63 [2018-07-24 10:53:56,168 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 39 SyntacticMatches, 4 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2018-07-24 10:53:56,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2018-07-24 10:53:56,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2018-07-24 10:53:56,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2018-07-24 10:53:56,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 85 transitions. [2018-07-24 10:53:56,183 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 85 transitions. Word has length 21 [2018-07-24 10:53:56,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 10:53:56,183 INFO L471 AbstractCegarLoop]: Abstraction has 63 states and 85 transitions. [2018-07-24 10:53:56,184 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-24 10:53:56,184 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 85 transitions. [2018-07-24 10:53:56,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-07-24 10:53:56,186 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 10:53:56,186 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, 1, 1] [2018-07-24 10:53:56,186 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]=== [2018-07-24 10:53:56,187 INFO L82 PathProgramCache]: Analyzing trace with hash 196313274, now seen corresponding path program 1 times [2018-07-24 10:53:56,187 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 10:53:56,188 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 10:53:56,188 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 10:53:56,188 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 10:53:56,188 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 10:53:56,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 10:53:56,290 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2018-07-24 10:53:56,290 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 10:53:56,291 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 10:53:56,291 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 10:53:56,291 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 10:53:56,292 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 10:53:56,292 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 10:53:56,292 INFO L87 Difference]: Start difference. First operand 63 states and 85 transitions. Second operand 3 states. [2018-07-24 10:53:56,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 10:53:56,346 INFO L93 Difference]: Finished difference Result 93 states and 126 transitions. [2018-07-24 10:53:56,347 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 10:53:56,348 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 51 [2018-07-24 10:53:56,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 10:53:56,350 INFO L225 Difference]: With dead ends: 93 [2018-07-24 10:53:56,350 INFO L226 Difference]: Without dead ends: 63 [2018-07-24 10:53:56,351 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 [2018-07-24 10:53:56,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2018-07-24 10:53:56,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2018-07-24 10:53:56,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2018-07-24 10:53:56,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 83 transitions. [2018-07-24 10:53:56,364 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 83 transitions. Word has length 51 [2018-07-24 10:53:56,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 10:53:56,364 INFO L471 AbstractCegarLoop]: Abstraction has 63 states and 83 transitions. [2018-07-24 10:53:56,365 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 10:53:56,365 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 83 transitions. [2018-07-24 10:53:56,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-07-24 10:53:56,367 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 10:53:56,367 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, 1, 1, 1] [2018-07-24 10:53:56,367 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]=== [2018-07-24 10:53:56,367 INFO L82 PathProgramCache]: Analyzing trace with hash -1850547815, now seen corresponding path program 1 times [2018-07-24 10:53:56,368 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 10:53:56,369 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 10:53:56,369 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 10:53:56,369 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 10:53:56,369 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 10:53:56,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 10:53:56,514 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 13 proven. 23 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2018-07-24 10:53:56,515 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 10:53:56,515 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG 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 [2018-07-24 10:53:56,534 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 10:53:56,534 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 10:53:56,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 10:53:56,579 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 10:53:56,655 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2018-07-24 10:53:56,656 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 10:53:56,929 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2018-07-24 10:53:56,949 INFO L309 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-07-24 10:53:56,949 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [7] total 9 [2018-07-24 10:53:56,950 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 10:53:56,950 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-24 10:53:56,950 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-24 10:53:56,950 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2018-07-24 10:53:56,951 INFO L87 Difference]: Start difference. First operand 63 states and 83 transitions. Second operand 6 states. [2018-07-24 10:53:57,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 10:53:57,183 INFO L93 Difference]: Finished difference Result 71 states and 90 transitions. [2018-07-24 10:53:57,183 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-07-24 10:53:57,184 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 52 [2018-07-24 10:53:57,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 10:53:57,186 INFO L225 Difference]: With dead ends: 71 [2018-07-24 10:53:57,187 INFO L226 Difference]: Without dead ends: 69 [2018-07-24 10:53:57,187 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 102 SyntacticMatches, 5 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-07-24 10:53:57,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2018-07-24 10:53:57,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 67. [2018-07-24 10:53:57,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2018-07-24 10:53:57,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 86 transitions. [2018-07-24 10:53:57,201 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 86 transitions. Word has length 52 [2018-07-24 10:53:57,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 10:53:57,201 INFO L471 AbstractCegarLoop]: Abstraction has 67 states and 86 transitions. [2018-07-24 10:53:57,202 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-24 10:53:57,202 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 86 transitions. [2018-07-24 10:53:57,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2018-07-24 10:53:57,205 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 10:53:57,205 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, 1, 1, 1] [2018-07-24 10:53:57,206 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]=== [2018-07-24 10:53:57,206 INFO L82 PathProgramCache]: Analyzing trace with hash 1298346981, now seen corresponding path program 1 times [2018-07-24 10:53:57,206 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 10:53:57,207 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 10:53:57,207 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 10:53:57,208 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 10:53:57,208 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 10:53:57,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 10:53:57,361 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 23 proven. 34 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2018-07-24 10:53:57,361 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 10:53:57,361 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG 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 [2018-07-24 10:53:57,374 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 10:53:57,374 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 10:53:57,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 10:53:57,422 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 10:53:57,526 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2018-07-24 10:53:57,526 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 10:53:57,648 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2018-07-24 10:53:57,673 INFO L309 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-07-24 10:53:57,673 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [7] total 9 [2018-07-24 10:53:57,673 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 10:53:57,674 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-24 10:53:57,674 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-24 10:53:57,674 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2018-07-24 10:53:57,675 INFO L87 Difference]: Start difference. First operand 67 states and 86 transitions. Second operand 6 states. [2018-07-24 10:53:57,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 10:53:57,843 INFO L93 Difference]: Finished difference Result 78 states and 96 transitions. [2018-07-24 10:53:57,844 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-07-24 10:53:57,844 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 88 [2018-07-24 10:53:57,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 10:53:57,846 INFO L225 Difference]: With dead ends: 78 [2018-07-24 10:53:57,846 INFO L226 Difference]: Without dead ends: 76 [2018-07-24 10:53:57,847 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 172 SyntacticMatches, 5 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-07-24 10:53:57,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2018-07-24 10:53:57,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 71. [2018-07-24 10:53:57,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2018-07-24 10:53:57,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 89 transitions. [2018-07-24 10:53:57,859 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 89 transitions. Word has length 88 [2018-07-24 10:53:57,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 10:53:57,860 INFO L471 AbstractCegarLoop]: Abstraction has 71 states and 89 transitions. [2018-07-24 10:53:57,860 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-24 10:53:57,860 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 89 transitions. [2018-07-24 10:53:57,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2018-07-24 10:53:57,862 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 10:53:57,863 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, 1, 1, 1] [2018-07-24 10:53:57,863 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]=== [2018-07-24 10:53:57,863 INFO L82 PathProgramCache]: Analyzing trace with hash 1088488061, now seen corresponding path program 1 times [2018-07-24 10:53:57,863 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 10:53:57,864 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 10:53:57,864 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 10:53:57,865 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 10:53:57,865 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 10:53:57,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 10:53:57,989 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 25 proven. 37 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2018-07-24 10:53:57,989 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 10:53:57,989 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG 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 [2018-07-24 10:53:58,000 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 10:53:58,000 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 10:53:58,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 10:53:58,051 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 10:53:58,243 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2018-07-24 10:53:58,244 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 10:53:58,336 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2018-07-24 10:53:58,357 INFO L309 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-07-24 10:53:58,357 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [7] total 11 [2018-07-24 10:53:58,357 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 10:53:58,358 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-24 10:53:58,358 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-24 10:53:58,358 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2018-07-24 10:53:58,358 INFO L87 Difference]: Start difference. First operand 71 states and 89 transitions. Second operand 6 states. [2018-07-24 10:53:58,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 10:53:58,486 INFO L93 Difference]: Finished difference Result 78 states and 99 transitions. [2018-07-24 10:53:58,491 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-07-24 10:53:58,492 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 93 [2018-07-24 10:53:58,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 10:53:58,493 INFO L225 Difference]: With dead ends: 78 [2018-07-24 10:53:58,493 INFO L226 Difference]: Without dead ends: 0 [2018-07-24 10:53:58,494 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 183 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2018-07-24 10:53:58,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-07-24 10:53:58,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-07-24 10:53:58,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-07-24 10:53:58,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-07-24 10:53:58,495 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 93 [2018-07-24 10:53:58,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 10:53:58,495 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-07-24 10:53:58,495 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-24 10:53:58,496 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-07-24 10:53:58,496 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-07-24 10:53:58,500 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-07-24 10:53:58,904 INFO L421 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-07-24 10:53:58,905 INFO L424 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-07-24 10:53:58,905 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. [2018-07-24 10:53:58,905 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 [2018-07-24 10:53:58,905 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. [2018-07-24 10:53:58,905 INFO L421 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-07-24 10:53:58,905 INFO L421 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-07-24 10:53:58,905 INFO L421 ceAbstractionStarter]: For program point L4''(lines 3 8) no Hoare annotation was computed. [2018-07-24 10:53:58,906 INFO L424 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-07-24 10:53:58,906 INFO L424 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-07-24 10:53:58,906 INFO L421 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-07-24 10:53:58,906 INFO L421 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-07-24 10:53:58,906 INFO L424 ceAbstractionStarter]: At program point L67(lines 11 69) the Hoare annotation is: true [2018-07-24 10:53:58,906 INFO L417 ceAbstractionStarter]: At program point L35'(line 35) the Hoare annotation is: (and (<= 1 main_~cp~0) (<= 0 main_~scheme~0) (<= (+ main_~cp~0 2) main_~urilen~0)) [2018-07-24 10:53:58,906 INFO L421 ceAbstractionStarter]: For program point mainEXIT(lines 10 69) no Hoare annotation was computed. [2018-07-24 10:53:58,906 INFO L417 ceAbstractionStarter]: At program point L49'(line 49) the Hoare annotation is: (and (<= 1 main_~cp~0) (<= 0 main_~c~0) (<= 0 main_~scheme~0) (<= (+ main_~cp~0 2) main_~urilen~0)) [2018-07-24 10:53:58,907 INFO L417 ceAbstractionStarter]: At program point L53'(line 53) the Hoare annotation is: (and (<= 1 main_~cp~0) (<= 0 main_~c~0) (<= 0 main_~scheme~0) (<= (+ main_~cp~0 2) main_~urilen~0) (<= (+ main_~c~0 2) main_~tokenlen~0)) [2018-07-24 10:53:58,907 INFO L421 ceAbstractionStarter]: For program point L18(line 18) no Hoare annotation was computed. [2018-07-24 10:53:58,907 INFO L421 ceAbstractionStarter]: For program point L19(line 19) no Hoare annotation was computed. [2018-07-24 10:53:58,907 INFO L421 ceAbstractionStarter]: For program point L21(line 21) no Hoare annotation was computed. [2018-07-24 10:53:58,907 INFO L421 ceAbstractionStarter]: For program point L20(line 20) no Hoare annotation was computed. [2018-07-24 10:53:58,907 INFO L421 ceAbstractionStarter]: For program point L23(lines 11 69) no Hoare annotation was computed. [2018-07-24 10:53:58,908 INFO L421 ceAbstractionStarter]: For program point L22(lines 11 69) no Hoare annotation was computed. [2018-07-24 10:53:58,908 INFO L417 ceAbstractionStarter]: At program point L33'''(lines 33 38) the Hoare annotation is: (and (<= 1 main_~cp~0) (<= (+ main_~cp~0 1) main_~urilen~0) (<= 0 main_~scheme~0)) [2018-07-24 10:53:58,908 INFO L417 ceAbstractionStarter]: At program point L51''(lines 50 63) the Hoare annotation is: (and (<= 1 main_~cp~0) (<= 0 main_~c~0) (<= (+ main_~cp~0 1) main_~urilen~0) (<= 0 main_~scheme~0)) [2018-07-24 10:53:58,908 INFO L421 ceAbstractionStarter]: For program point L29(line 29) no Hoare annotation was computed. [2018-07-24 10:53:58,908 INFO L417 ceAbstractionStarter]: At program point L28(line 28) the Hoare annotation is: (and (<= 1 main_~cp~0) (<= (+ main_~cp~0 1) main_~urilen~0) (<= 0 main_~scheme~0)) [2018-07-24 10:53:58,908 INFO L421 ceAbstractionStarter]: For program point L55'(lines 55 61) no Hoare annotation was computed. [2018-07-24 10:53:58,909 INFO L417 ceAbstractionStarter]: At program point L31'(line 31) the Hoare annotation is: (and (<= 1 main_~cp~0) (<= (+ main_~cp~0 1) main_~urilen~0) (<= 0 main_~scheme~0)) [2018-07-24 10:53:58,909 INFO L421 ceAbstractionStarter]: For program point L30(lines 30 66) no Hoare annotation was computed. [2018-07-24 10:53:58,909 INFO L421 ceAbstractionStarter]: For program point mainFINAL(lines 10 69) no Hoare annotation was computed. [2018-07-24 10:53:58,909 INFO L417 ceAbstractionStarter]: At program point L31(line 31) the Hoare annotation is: (and (<= 1 main_~cp~0) (<= (+ main_~cp~0 1) main_~urilen~0) (<= 0 main_~scheme~0)) [2018-07-24 10:53:58,909 INFO L421 ceAbstractionStarter]: For program point L34(line 34) no Hoare annotation was computed. [2018-07-24 10:53:58,909 INFO L421 ceAbstractionStarter]: For program point L33(lines 33 38) no Hoare annotation was computed. [2018-07-24 10:53:58,910 INFO L421 ceAbstractionStarter]: For program point L36(line 36) no Hoare annotation was computed. [2018-07-24 10:53:58,910 INFO L417 ceAbstractionStarter]: At program point L35(line 35) the Hoare annotation is: (and (<= 1 main_~cp~0) (<= 0 main_~scheme~0) (<= (+ main_~cp~0 2) main_~urilen~0)) [2018-07-24 10:53:58,910 INFO L424 ceAbstractionStarter]: At program point mainENTRY(lines 10 69) the Hoare annotation is: true [2018-07-24 10:53:58,910 INFO L417 ceAbstractionStarter]: At program point L39(line 39) the Hoare annotation is: (let ((.cse0 (<= 1 main_~cp~0)) (.cse1 (<= 0 main_~scheme~0))) (or (and (= main_~urilen~0 (+ main_~cp~0 1)) .cse0 .cse1) (and .cse0 .cse1 (<= (+ main_~cp~0 2) main_~urilen~0)))) [2018-07-24 10:53:58,910 INFO L417 ceAbstractionStarter]: At program point L42'(line 42) the Hoare annotation is: (and (<= 1 main_~cp~0) (<= 0 main_~scheme~0) (<= (+ main_~cp~0 2) main_~urilen~0)) [2018-07-24 10:53:58,910 INFO L421 ceAbstractionStarter]: For program point L40(lines 30 66) no Hoare annotation was computed. [2018-07-24 10:53:58,911 INFO L417 ceAbstractionStarter]: At program point L33''(lines 32 38) the Hoare annotation is: (and (<= 1 main_~cp~0) (<= (+ main_~cp~0 1) main_~urilen~0) (<= 0 main_~scheme~0)) [2018-07-24 10:53:58,911 INFO L421 ceAbstractionStarter]: For program point L43(lines 30 66) no Hoare annotation was computed. [2018-07-24 10:53:58,911 INFO L417 ceAbstractionStarter]: At program point L42(line 42) the Hoare annotation is: (and (<= 1 main_~cp~0) (<= 0 main_~scheme~0) (<= (+ main_~cp~0 2) main_~urilen~0)) [2018-07-24 10:53:58,911 INFO L421 ceAbstractionStarter]: For program point L47(lines 47 65) no Hoare annotation was computed. [2018-07-24 10:53:58,911 INFO L417 ceAbstractionStarter]: At program point L49(line 49) the Hoare annotation is: (and (<= 1 main_~cp~0) (<= 0 main_~c~0) (<= 0 main_~scheme~0) (<= (+ main_~cp~0 2) main_~urilen~0)) [2018-07-24 10:53:58,911 INFO L417 ceAbstractionStarter]: At program point L57'(line 57) the Hoare annotation is: (and (<= (+ main_~c~0 1) main_~tokenlen~0) (<= 1 main_~cp~0) (<= 0 main_~scheme~0) (<= 1 main_~c~0) (<= (+ main_~cp~0 2) main_~urilen~0)) [2018-07-24 10:53:58,911 INFO L421 ceAbstractionStarter]: For program point L21'(lines 11 69) no Hoare annotation was computed. [2018-07-24 10:53:58,912 INFO L421 ceAbstractionStarter]: For program point L51(lines 51 63) no Hoare annotation was computed. [2018-07-24 10:53:58,912 INFO L421 ceAbstractionStarter]: For program point L54(line 54) no Hoare annotation was computed. [2018-07-24 10:53:58,912 INFO L417 ceAbstractionStarter]: At program point L53(line 53) the Hoare annotation is: (and (<= 1 main_~cp~0) (<= 0 main_~c~0) (<= 0 main_~scheme~0) (<= (+ main_~cp~0 2) main_~urilen~0) (<= (+ main_~c~0 2) main_~tokenlen~0)) [2018-07-24 10:53:58,912 INFO L421 ceAbstractionStarter]: For program point L55(lines 55 61) no Hoare annotation was computed. [2018-07-24 10:53:58,912 INFO L417 ceAbstractionStarter]: At program point L58(line 58) the Hoare annotation is: (and (<= (+ main_~c~0 1) main_~tokenlen~0) (<= 1 main_~cp~0) (<= 0 main_~scheme~0) (<= 1 main_~c~0) (<= (+ main_~cp~0 2) main_~urilen~0)) [2018-07-24 10:53:58,912 INFO L417 ceAbstractionStarter]: At program point L57(line 57) the Hoare annotation is: (and (<= (+ main_~c~0 1) main_~tokenlen~0) (<= 1 main_~cp~0) (<= 0 main_~scheme~0) (<= 1 main_~c~0) (<= (+ main_~cp~0 2) main_~urilen~0)) [2018-07-24 10:53:58,912 INFO L417 ceAbstractionStarter]: At program point L59(line 59) the Hoare annotation is: (and (<= (+ main_~c~0 1) main_~tokenlen~0) (<= 1 main_~cp~0) (<= 0 main_~scheme~0) (<= 1 main_~c~0) (<= (+ main_~cp~0 2) main_~urilen~0)) [2018-07-24 10:53:58,913 INFO L417 ceAbstractionStarter]: At program point L28'(line 28) the Hoare annotation is: (and (<= 1 main_~cp~0) (<= (+ main_~cp~0 1) main_~urilen~0) (<= 0 main_~scheme~0)) [2018-07-24 10:53:58,924 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.07 10:53:58 BoogieIcfgContainer [2018-07-24 10:53:58,924 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-24 10:53:58,925 INFO L168 Benchmark]: Toolchain (without parser) took 6097.37 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 768.1 MB). Free memory was 1.4 GB in the beginning and 1.9 GB in the end (delta: -437.7 MB). Peak memory consumption was 330.4 MB. Max. memory is 7.1 GB. [2018-07-24 10:53:58,927 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. [2018-07-24 10:53:58,928 INFO L168 Benchmark]: CACSL2BoogieTranslator took 298.60 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. [2018-07-24 10:53:58,928 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.11 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. [2018-07-24 10:53:58,929 INFO L168 Benchmark]: Boogie Preprocessor took 43.67 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. [2018-07-24 10:53:58,930 INFO L168 Benchmark]: RCFGBuilder took 717.37 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 768.1 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -817.1 MB). Peak memory consumption was 27.2 MB. Max. memory is 7.1 GB. [2018-07-24 10:53:58,931 INFO L168 Benchmark]: TraceAbstraction took 5003.49 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 368.8 MB). Peak memory consumption was 368.8 MB. Max. memory is 7.1 GB. [2018-07-24 10:53:58,935 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 298.60 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 29.11 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. * Boogie Preprocessor took 43.67 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 717.37 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 768.1 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -817.1 MB). Peak memory consumption was 27.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 5003.49 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 368.8 MB). Peak memory consumption was 368.8 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: 32]: Loop Invariant Derived loop invariant: (1 <= cp && cp + 1 <= urilen) && 0 <= scheme - InvariantResult [Line: 50]: Loop Invariant Derived loop invariant: ((1 <= cp && 0 <= c) && cp + 1 <= urilen) && 0 <= scheme - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 55 locations, 1 error locations. SAFE Result, 4.9s OverallTime, 6 OverallIterations, 14 TraceHistogramMax, 1.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.4s HoareAnnotationTime, HoareTripleCheckerStatistics: 404 SDtfs, 99 SDslu, 998 SDs, 0 SdLazy, 321 SolverSat, 85 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 556 GetRequests, 500 SyntacticMatches, 16 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=71occurred 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: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 14 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 26 LocationsWithAnnotation, 76 PreInvPairs, 104 NumberOfFragments, 317 HoareAnnotationTreeSize, 76 FomulaSimplifications, 123 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 26 FomulaSimplificationsInter, 137 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 575 NumberOfCodeBlocks, 575 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 815 ConstructedInterpolants, 0 QuantifiedInterpolants, 86463 SizeOfPredicates, 14 NumberOfNonLiveVariables, 527 ConjunctsInSsa, 34 ConjunctsInUnsatCore, 14 InterpolantComputations, 10 PerfectInterpolantSequences, 2077/2172 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-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-24_10-53-58-952.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/apache-escape-absolute_true-unreach-call_true-termination.i_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-24_10-53-58-952.csv Received shutdown request...