java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf -i ../../../trunk/examples/svcomp/loop-invgen/apache-escape-absolute_true-unreach-call_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-ddc4263 [2018-08-08 03:30:33,116 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-08-08 03:30:33,119 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-08-08 03:30:33,131 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-08-08 03:30:33,132 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-08-08 03:30:33,133 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-08-08 03:30:33,135 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-08-08 03:30:33,136 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-08-08 03:30:33,138 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-08-08 03:30:33,139 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-08-08 03:30:33,140 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-08-08 03:30:33,140 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-08-08 03:30:33,141 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-08-08 03:30:33,142 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-08-08 03:30:33,144 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-08-08 03:30:33,144 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-08-08 03:30:33,145 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-08-08 03:30:33,147 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-08-08 03:30:33,150 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-08-08 03:30:33,151 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-08-08 03:30:33,153 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-08-08 03:30:33,154 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-08-08 03:30:33,157 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-08-08 03:30:33,177 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf [2018-08-08 03:30:33,209 INFO L110 SettingsManager]: Loading preferences was successful [2018-08-08 03:30:33,210 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-08-08 03:30:33,211 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-08-08 03:30:33,212 INFO L133 SettingsManager]: * User list type=DISABLED [2018-08-08 03:30:33,212 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-08-08 03:30:33,212 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-08-08 03:30:33,212 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-08-08 03:30:33,212 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-08-08 03:30:33,213 INFO L133 SettingsManager]: * Log string format=TERM [2018-08-08 03:30:33,213 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-08-08 03:30:33,213 INFO L133 SettingsManager]: * Interval Domain=false [2018-08-08 03:30:33,215 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-08-08 03:30:33,215 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-08-08 03:30:33,215 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-08-08 03:30:33,216 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-08-08 03:30:33,216 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-08-08 03:30:33,216 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-08-08 03:30:33,217 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-08-08 03:30:33,217 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-08-08 03:30:33,217 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-08-08 03:30:33,217 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-08-08 03:30:33,217 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-08-08 03:30:33,218 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-08-08 03:30:33,218 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-08-08 03:30:33,218 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-08-08 03:30:33,218 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-08-08 03:30:33,220 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-08-08 03:30:33,220 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-08-08 03:30:33,220 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-08-08 03:30:33,220 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-08-08 03:30:33,221 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-08-08 03:30:33,221 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-08-08 03:30:33,221 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-08-08 03:30:33,278 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-08-08 03:30:33,291 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-08-08 03:30:33,295 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-08-08 03:30:33,297 INFO L271 PluginConnector]: Initializing CDTParser... [2018-08-08 03:30:33,297 INFO L276 PluginConnector]: CDTParser initialized [2018-08-08 03:30:33,298 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/apache-escape-absolute_true-unreach-call_true-termination.i [2018-08-08 03:30:33,660 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/99c231d89/e82fa6c93cf145cc9718537486200bcc/FLAGed9427e43 [2018-08-08 03:30:33,836 INFO L276 CDTParser]: Found 1 translation units. [2018-08-08 03:30:33,836 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute_true-unreach-call_true-termination.i [2018-08-08 03:30:33,845 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/99c231d89/e82fa6c93cf145cc9718537486200bcc/FLAGed9427e43 [2018-08-08 03:30:33,874 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/99c231d89/e82fa6c93cf145cc9718537486200bcc [2018-08-08 03:30:33,885 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-08-08 03:30:33,887 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-08-08 03:30:33,888 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-08-08 03:30:33,889 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-08-08 03:30:33,896 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-08-08 03:30:33,897 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.08 03:30:33" (1/1) ... [2018-08-08 03:30:33,900 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50213758 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 03:30:33, skipping insertion in model container [2018-08-08 03:30:33,901 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.08 03:30:33" (1/1) ... [2018-08-08 03:30:34,080 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-08-08 03:30:34,136 INFO L175 PostProcessor]: Settings: Checked method=main [2018-08-08 03:30:34,157 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-08-08 03:30:34,180 INFO L175 PostProcessor]: Settings: Checked method=main [2018-08-08 03:30:34,204 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 03:30:34 WrapperNode [2018-08-08 03:30:34,205 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-08-08 03:30:34,206 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-08-08 03:30:34,206 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-08-08 03:30:34,206 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-08-08 03:30:34,217 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 03:30:34" (1/1) ... [2018-08-08 03:30:34,225 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 03:30:34" (1/1) ... [2018-08-08 03:30:34,232 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-08-08 03:30:34,233 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-08-08 03:30:34,233 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-08-08 03:30:34,233 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-08-08 03:30:34,245 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 03:30:34" (1/1) ... [2018-08-08 03:30:34,246 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 03:30:34" (1/1) ... [2018-08-08 03:30:34,247 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 03:30:34" (1/1) ... [2018-08-08 03:30:34,248 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 03:30:34" (1/1) ... [2018-08-08 03:30:34,251 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 03:30:34" (1/1) ... [2018-08-08 03:30:34,258 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 03:30:34" (1/1) ... [2018-08-08 03:30:34,260 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 03:30:34" (1/1) ... [2018-08-08 03:30:34,263 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-08-08 03:30:34,264 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-08-08 03:30:34,264 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-08-08 03:30:34,264 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-08-08 03:30:34,265 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 03:30:34" (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 [2018-08-08 03:30:34,340 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-08-08 03:30:34,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-08-08 03:30:34,340 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 [2018-08-08 03:30:34,342 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 [2018-08-08 03:30:34,342 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-08-08 03:30:34,342 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-08-08 03:30:34,343 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-08-08 03:30:34,343 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-08-08 03:30:35,032 INFO L273 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-08-08 03:30:35,033 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.08 03:30:35 BoogieIcfgContainer [2018-08-08 03:30:35,033 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-08-08 03:30:35,034 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-08-08 03:30:35,034 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-08-08 03:30:35,038 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-08-08 03:30:35,038 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.08 03:30:33" (1/3) ... [2018-08-08 03:30:35,039 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@599736fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.08 03:30:35, skipping insertion in model container [2018-08-08 03:30:35,039 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 03:30:34" (2/3) ... [2018-08-08 03:30:35,040 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@599736fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.08 03:30:35, skipping insertion in model container [2018-08-08 03:30:35,040 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.08 03:30:35" (3/3) ... [2018-08-08 03:30:35,042 INFO L112 eAbstractionObserver]: Analyzing ICFG apache-escape-absolute_true-unreach-call_true-termination.i [2018-08-08 03:30:35,052 INFO L133 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-08-08 03:30:35,061 INFO L145 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-08-08 03:30:35,115 INFO L129 ementStrategyFactory]: Using default assertion order modulation [2018-08-08 03:30:35,116 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-08-08 03:30:35,116 INFO L382 AbstractCegarLoop]: Hoare is true [2018-08-08 03:30:35,116 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-08-08 03:30:35,117 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-08-08 03:30:35,117 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-08-08 03:30:35,117 INFO L386 AbstractCegarLoop]: Difference is false [2018-08-08 03:30:35,117 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-08-08 03:30:35,117 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-08-08 03:30:35,139 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states. [2018-08-08 03:30:35,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-08-08 03:30:35,146 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 03:30:35,147 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-08-08 03:30:35,148 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_invgen_apache_escape_absolute_true_unreach_call_true_termination_i____VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-08 03:30:35,153 INFO L82 PathProgramCache]: Analyzing trace with hash -2143096435, now seen corresponding path program 1 times [2018-08-08 03:30:35,156 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 03:30:35,157 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 17 with the following transitions: [2018-08-08 03:30:35,159 INFO L202 CegarAbsIntRunner]: [0], [1], [4], [6], [15], [19], [23], [27], [30], [36], [42], [50], [133], [134], [135], [137] [2018-08-08 03:30:35,217 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-08-08 03:30:35,217 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 03:30:35,375 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-08-08 03:30:35,376 INFO L272 AbstractInterpreter]: Visited 15 different actions 15 times. Never merged. Never widened. Never found a fixpoint. Largest state had 8 variables. [2018-08-08 03:30:35,390 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-08-08 03:30:35,487 INFO L232 lantSequenceWeakener]: Weakened 4 states. On average, predicates are now at 41.67% of their original sizes. [2018-08-08 03:30:35,487 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-08-08 03:30:36,266 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-08-08 03:30:36,269 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-08 03:30:36,269 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-08-08 03:30:36,270 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-08 03:30:36,275 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-08-08 03:30:36,283 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-08-08 03:30:36,285 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2018-08-08 03:30:36,287 INFO L87 Difference]: Start difference. First operand 55 states. Second operand 12 states. [2018-08-08 03:30:37,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-08 03:30:37,978 INFO L93 Difference]: Finished difference Result 145 states and 260 transitions. [2018-08-08 03:30:37,981 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-08-08 03:30:37,982 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 16 [2018-08-08 03:30:37,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-08 03:30:37,993 INFO L225 Difference]: With dead ends: 145 [2018-08-08 03:30:37,993 INFO L226 Difference]: Without dead ends: 80 [2018-08-08 03:30:37,998 INFO L603 BasicCegarLoop]: 2 DeclaredPredicates, 18 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2018-08-08 03:30:38,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2018-08-08 03:30:38,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 64. [2018-08-08 03:30:38,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2018-08-08 03:30:38,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 91 transitions. [2018-08-08 03:30:38,071 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 91 transitions. Word has length 16 [2018-08-08 03:30:38,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-08 03:30:38,072 INFO L480 AbstractCegarLoop]: Abstraction has 64 states and 91 transitions. [2018-08-08 03:30:38,072 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-08-08 03:30:38,072 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 91 transitions. [2018-08-08 03:30:38,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-08-08 03:30:38,076 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 03:30:38,076 INFO L376 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] [2018-08-08 03:30:38,076 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_invgen_apache_escape_absolute_true_unreach_call_true_termination_i____VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-08 03:30:38,077 INFO L82 PathProgramCache]: Analyzing trace with hash 196313274, now seen corresponding path program 1 times [2018-08-08 03:30:38,077 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 03:30:38,077 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 52 with the following transitions: [2018-08-08 03:30:38,078 INFO L202 CegarAbsIntRunner]: [0], [1], [4], [6], [9], [11], [15], [19], [23], [27], [30], [36], [42], [50], [53], [56], [62], [66], [86], [133], [134], [135], [137], [138], [139], [140], [141], [142], [143], [144], [149], [150], [151], [152], [153] [2018-08-08 03:30:38,081 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-08-08 03:30:38,081 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 03:30:38,145 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-08-08 03:30:38,145 INFO L272 AbstractInterpreter]: Visited 33 different actions 53 times. Never merged. Never widened. Never found a fixpoint. Largest state had 9 variables. [2018-08-08 03:30:38,157 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-08-08 03:30:38,284 INFO L232 lantSequenceWeakener]: Weakened 31 states. On average, predicates are now at 67.96% of their original sizes. [2018-08-08 03:30:38,284 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-08-08 03:30:38,698 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-08-08 03:30:38,699 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-08 03:30:38,699 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-08-08 03:30:38,699 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-08 03:30:38,700 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-08-08 03:30:38,700 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-08-08 03:30:38,701 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2018-08-08 03:30:38,701 INFO L87 Difference]: Start difference. First operand 64 states and 91 transitions. Second operand 14 states. [2018-08-08 03:30:40,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-08 03:30:40,104 INFO L93 Difference]: Finished difference Result 110 states and 157 transitions. [2018-08-08 03:30:40,109 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-08-08 03:30:40,110 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 51 [2018-08-08 03:30:40,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-08 03:30:40,113 INFO L225 Difference]: With dead ends: 110 [2018-08-08 03:30:40,113 INFO L226 Difference]: Without dead ends: 80 [2018-08-08 03:30:40,115 INFO L603 BasicCegarLoop]: 2 DeclaredPredicates, 56 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=89, Invalid=253, Unknown=0, NotChecked=0, Total=342 [2018-08-08 03:30:40,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2018-08-08 03:30:40,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 64. [2018-08-08 03:30:40,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2018-08-08 03:30:40,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 90 transitions. [2018-08-08 03:30:40,138 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 90 transitions. Word has length 51 [2018-08-08 03:30:40,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-08 03:30:40,138 INFO L480 AbstractCegarLoop]: Abstraction has 64 states and 90 transitions. [2018-08-08 03:30:40,138 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-08-08 03:30:40,139 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 90 transitions. [2018-08-08 03:30:40,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-08-08 03:30:40,141 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 03:30:40,141 INFO L376 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] [2018-08-08 03:30:40,141 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_invgen_apache_escape_absolute_true_unreach_call_true_termination_i____VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-08 03:30:40,142 INFO L82 PathProgramCache]: Analyzing trace with hash -1850547815, now seen corresponding path program 1 times [2018-08-08 03:30:40,142 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 03:30:40,142 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 53 with the following transitions: [2018-08-08 03:30:40,142 INFO L202 CegarAbsIntRunner]: [0], [1], [4], [6], [9], [11], [15], [19], [23], [27], [30], [36], [42], [50], [53], [56], [62], [68], [71], [86], [133], [134], [135], [137], [138], [139], [140], [141], [142], [143], [144], [149], [150], [151], [152], [153] [2018-08-08 03:30:40,145 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-08-08 03:30:40,146 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 03:30:40,183 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-08-08 03:30:40,183 INFO L272 AbstractInterpreter]: Visited 35 different actions 59 times. Never merged. Never widened. Never found a fixpoint. Largest state had 10 variables. [2018-08-08 03:30:40,221 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-08-08 03:30:40,341 INFO L232 lantSequenceWeakener]: Weakened 34 states. On average, predicates are now at 66.08% of their original sizes. [2018-08-08 03:30:40,342 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-08-08 03:30:40,729 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-08-08 03:30:40,730 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-08 03:30:40,730 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2018-08-08 03:30:40,730 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-08 03:30:40,731 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-08-08 03:30:40,731 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-08-08 03:30:40,732 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2018-08-08 03:30:40,732 INFO L87 Difference]: Start difference. First operand 64 states and 90 transitions. Second operand 15 states. [2018-08-08 03:30:41,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-08 03:30:41,891 INFO L93 Difference]: Finished difference Result 75 states and 102 transitions. [2018-08-08 03:30:41,893 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-08-08 03:30:41,893 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 52 [2018-08-08 03:30:41,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-08 03:30:41,897 INFO L225 Difference]: With dead ends: 75 [2018-08-08 03:30:41,897 INFO L226 Difference]: Without dead ends: 73 [2018-08-08 03:30:41,898 INFO L603 BasicCegarLoop]: 2 DeclaredPredicates, 58 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=108, Invalid=312, Unknown=0, NotChecked=0, Total=420 [2018-08-08 03:30:41,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2018-08-08 03:30:41,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 68. [2018-08-08 03:30:41,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2018-08-08 03:30:41,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 93 transitions. [2018-08-08 03:30:41,922 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 93 transitions. Word has length 52 [2018-08-08 03:30:41,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-08 03:30:41,923 INFO L480 AbstractCegarLoop]: Abstraction has 68 states and 93 transitions. [2018-08-08 03:30:41,923 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-08-08 03:30:41,923 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 93 transitions. [2018-08-08 03:30:41,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2018-08-08 03:30:41,927 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 03:30:41,927 INFO L376 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] [2018-08-08 03:30:41,928 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_invgen_apache_escape_absolute_true_unreach_call_true_termination_i____VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-08 03:30:41,928 INFO L82 PathProgramCache]: Analyzing trace with hash 1298346981, now seen corresponding path program 1 times [2018-08-08 03:30:41,928 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 03:30:41,928 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 89 with the following transitions: [2018-08-08 03:30:41,929 INFO L202 CegarAbsIntRunner]: [0], [1], [4], [6], [9], [11], [15], [19], [23], [27], [30], [36], [42], [50], [53], [56], [62], [68], [71], [86], [93], [96], [102], [108], [111], [114], [133], [134], [135], [137], [138], [139], [140], [141], [142], [143], [144], [149], [150], [151], [152], [153], [154], [155], [156], [157], [158], [159], [160], [161], [162], [163], [164], [165] [2018-08-08 03:30:41,933 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-08-08 03:30:41,933 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 03:30:41,999 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-08-08 03:30:41,999 INFO L272 AbstractInterpreter]: Visited 53 different actions 101 times. Never merged. Never widened. Never found a fixpoint. Largest state had 14 variables. [2018-08-08 03:30:42,037 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-08-08 03:30:42,226 INFO L232 lantSequenceWeakener]: Weakened 62 states. On average, predicates are now at 60.4% of their original sizes. [2018-08-08 03:30:42,226 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-08-08 03:30:43,319 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-08-08 03:30:43,320 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-08 03:30:43,320 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2018-08-08 03:30:43,320 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-08 03:30:43,321 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-08-08 03:30:43,321 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-08-08 03:30:43,322 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=385, Unknown=0, NotChecked=0, Total=462 [2018-08-08 03:30:43,322 INFO L87 Difference]: Start difference. First operand 68 states and 93 transitions. Second operand 22 states. [2018-08-08 03:30:46,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-08 03:30:46,002 INFO L93 Difference]: Finished difference Result 102 states and 141 transitions. [2018-08-08 03:30:46,002 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-08-08 03:30:46,003 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 88 [2018-08-08 03:30:46,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-08 03:30:46,006 INFO L225 Difference]: With dead ends: 102 [2018-08-08 03:30:46,006 INFO L226 Difference]: Without dead ends: 100 [2018-08-08 03:30:46,007 INFO L603 BasicCegarLoop]: 2 DeclaredPredicates, 102 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 221 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=271, Invalid=989, Unknown=0, NotChecked=0, Total=1260 [2018-08-08 03:30:46,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2018-08-08 03:30:46,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 81. [2018-08-08 03:30:46,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2018-08-08 03:30:46,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 110 transitions. [2018-08-08 03:30:46,033 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 110 transitions. Word has length 88 [2018-08-08 03:30:46,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-08 03:30:46,034 INFO L480 AbstractCegarLoop]: Abstraction has 81 states and 110 transitions. [2018-08-08 03:30:46,034 INFO L481 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-08-08 03:30:46,034 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 110 transitions. [2018-08-08 03:30:46,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2018-08-08 03:30:46,036 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 03:30:46,037 INFO L376 BasicCegarLoop]: trace histogram [19, 18, 18, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-08-08 03:30:46,037 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_invgen_apache_escape_absolute_true_unreach_call_true_termination_i____VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-08 03:30:46,037 INFO L82 PathProgramCache]: Analyzing trace with hash 538652630, now seen corresponding path program 1 times [2018-08-08 03:30:46,037 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 03:30:46,038 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 124 with the following transitions: [2018-08-08 03:30:46,038 INFO L202 CegarAbsIntRunner]: [0], [1], [4], [6], [9], [11], [15], [19], [23], [27], [30], [36], [42], [50], [53], [56], [62], [68], [71], [86], [93], [96], [102], [108], [111], [114], [122], [133], [134], [135], [137], [138], [139], [140], [141], [142], [143], [144], [149], [150], [151], [152], [153], [154], [155], [156], [157], [158], [159], [160], [161], [162], [163], [164], [165], [166], [167], [168], [169], [170], [171], [172] [2018-08-08 03:30:46,041 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-08-08 03:30:46,042 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 03:30:46,297 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-08-08 03:30:46,297 INFO L272 AbstractInterpreter]: Visited 61 different actions 367 times. Merged at 11 different actions 66 times. Widened at 1 different actions 2 times. Found 1 fixpoints after 1 different actions. Largest state had 15 variables. [2018-08-08 03:30:46,340 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-08-08 03:30:46,519 INFO L232 lantSequenceWeakener]: Weakened 91 states. On average, predicates are now at 60.02% of their original sizes. [2018-08-08 03:30:46,519 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-08-08 03:30:47,671 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-08-08 03:30:47,671 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-08 03:30:47,672 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2018-08-08 03:30:47,672 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-08 03:30:47,672 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2018-08-08 03:30:47,673 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2018-08-08 03:30:47,673 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=505, Unknown=0, NotChecked=0, Total=600 [2018-08-08 03:30:47,673 INFO L87 Difference]: Start difference. First operand 81 states and 110 transitions. Second operand 25 states. [2018-08-08 03:30:50,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-08 03:30:50,798 INFO L93 Difference]: Finished difference Result 122 states and 169 transitions. [2018-08-08 03:30:50,799 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2018-08-08 03:30:50,799 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 123 [2018-08-08 03:30:50,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-08 03:30:50,802 INFO L225 Difference]: With dead ends: 122 [2018-08-08 03:30:50,802 INFO L226 Difference]: Without dead ends: 100 [2018-08-08 03:30:50,804 INFO L603 BasicCegarLoop]: 2 DeclaredPredicates, 142 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 364 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=397, Invalid=1495, Unknown=0, NotChecked=0, Total=1892 [2018-08-08 03:30:50,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2018-08-08 03:30:50,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 87. [2018-08-08 03:30:50,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2018-08-08 03:30:50,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 118 transitions. [2018-08-08 03:30:50,831 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 118 transitions. Word has length 123 [2018-08-08 03:30:50,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-08 03:30:50,832 INFO L480 AbstractCegarLoop]: Abstraction has 87 states and 118 transitions. [2018-08-08 03:30:50,832 INFO L481 AbstractCegarLoop]: Interpolant automaton has 25 states. [2018-08-08 03:30:50,832 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 118 transitions. [2018-08-08 03:30:50,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2018-08-08 03:30:50,835 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 03:30:50,836 INFO L376 BasicCegarLoop]: trace histogram [21, 20, 20, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 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] [2018-08-08 03:30:50,836 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_invgen_apache_escape_absolute_true_unreach_call_true_termination_i____VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-08 03:30:50,836 INFO L82 PathProgramCache]: Analyzing trace with hash 1314950467, now seen corresponding path program 1 times [2018-08-08 03:30:50,836 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 03:30:50,837 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 139 with the following transitions: [2018-08-08 03:30:50,837 INFO L202 CegarAbsIntRunner]: [0], [1], [4], [6], [9], [11], [15], [19], [23], [27], [30], [36], [42], [50], [53], [56], [62], [68], [71], [86], [93], [96], [102], [108], [111], [114], [120], [122], [133], [134], [135], [137], [138], [139], [140], [141], [142], [143], [144], [149], [150], [151], [152], [153], [154], [155], [156], [157], [158], [159], [160], [161], [162], [163], [164], [165], [166], [167], [168], [169], [170], [171], [172] [2018-08-08 03:30:50,840 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-08-08 03:30:50,840 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 03:30:51,017 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-08-08 03:30:51,017 INFO L272 AbstractInterpreter]: Visited 62 different actions 508 times. Merged at 12 different actions 107 times. Widened at 1 different actions 5 times. Found 11 fixpoints after 2 different actions. Largest state had 15 variables. [2018-08-08 03:30:51,053 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-08-08 03:30:51,236 INFO L232 lantSequenceWeakener]: Weakened 104 states. On average, predicates are now at 58.64% of their original sizes. [2018-08-08 03:30:51,240 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-08-08 03:30:52,262 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-08-08 03:30:52,262 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-08 03:30:52,262 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2018-08-08 03:30:52,263 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-08 03:30:52,264 INFO L459 AbstractCegarLoop]: Interpolant automaton has 26 states [2018-08-08 03:30:52,264 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2018-08-08 03:30:52,265 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=548, Unknown=0, NotChecked=0, Total=650 [2018-08-08 03:30:52,265 INFO L87 Difference]: Start difference. First operand 87 states and 118 transitions. Second operand 26 states. [2018-08-08 03:30:54,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-08 03:30:54,941 INFO L93 Difference]: Finished difference Result 94 states and 127 transitions. [2018-08-08 03:30:54,941 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-08-08 03:30:54,942 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 138 [2018-08-08 03:30:54,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-08 03:30:54,943 INFO L225 Difference]: With dead ends: 94 [2018-08-08 03:30:54,944 INFO L226 Difference]: Without dead ends: 0 [2018-08-08 03:30:54,946 INFO L603 BasicCegarLoop]: 2 DeclaredPredicates, 155 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 344 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=384, Invalid=1422, Unknown=0, NotChecked=0, Total=1806 [2018-08-08 03:30:54,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-08-08 03:30:54,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-08-08 03:30:54,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-08-08 03:30:54,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-08-08 03:30:54,948 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 138 [2018-08-08 03:30:54,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-08 03:30:54,948 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-08-08 03:30:54,948 INFO L481 AbstractCegarLoop]: Interpolant automaton has 26 states. [2018-08-08 03:30:54,948 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-08-08 03:30:54,949 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-08-08 03:30:54,953 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-08-08 03:30:55,221 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-08 03:30:55,242 WARN L170 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 132 [2018-08-08 03:30:55,518 WARN L170 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 175 [2018-08-08 03:30:55,730 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-08 03:30:55,759 WARN L170 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 165 [2018-08-08 03:30:55,872 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-08 03:30:55,899 WARN L170 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 165 [2018-08-08 03:30:56,014 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-08 03:30:56,759 WARN L170 SmtUtils]: Spent 564.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 24 [2018-08-08 03:30:56,920 WARN L170 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 24 [2018-08-08 03:30:57,122 WARN L170 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 24 [2018-08-08 03:30:58,060 WARN L170 SmtUtils]: Spent 935.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 43 [2018-08-08 03:30:58,178 WARN L170 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 21 [2018-08-08 03:30:58,664 WARN L170 SmtUtils]: Spent 483.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 32 [2018-08-08 03:30:59,597 WARN L170 SmtUtils]: Spent 932.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 20 [2018-08-08 03:31:01,713 WARN L170 SmtUtils]: Spent 2.11 s on a formula simplification. DAG size of input: 164 DAG size of output: 35 [2018-08-08 03:31:01,931 WARN L170 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 21 [2018-08-08 03:31:02,735 WARN L170 SmtUtils]: Spent 703.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 35 [2018-08-08 03:31:03,028 WARN L170 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 24 [2018-08-08 03:31:03,129 WARN L170 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 20 [2018-08-08 03:31:03,323 WARN L170 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 24 [2018-08-08 03:31:03,512 WARN L170 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 24 [2018-08-08 03:31:03,714 WARN L170 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 21 [2018-08-08 03:31:04,067 WARN L170 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 32 [2018-08-08 03:31:04,074 INFO L425 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-08-08 03:31:04,074 INFO L422 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-08-08 03:31:04,075 INFO L422 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. [2018-08-08 03:31:04,075 INFO L422 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_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-08-08 03:31:04,075 INFO L425 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 [2018-08-08 03:31:04,075 INFO L422 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-08-08 03:31:04,075 INFO L422 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-08-08 03:31:04,075 INFO L422 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2018-08-08 03:31:04,075 INFO L422 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-08-08 03:31:04,075 INFO L425 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-08-08 03:31:04,075 INFO L425 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-08-08 03:31:04,075 INFO L422 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-08-08 03:31:04,076 INFO L422 ceAbstractionStarter]: For program point mainEXIT(lines 10 69) no Hoare annotation was computed. [2018-08-08 03:31:04,076 INFO L422 ceAbstractionStarter]: For program point L19(line 19) no Hoare annotation was computed. [2018-08-08 03:31:04,076 INFO L422 ceAbstractionStarter]: For program point L36(line 36) no Hoare annotation was computed. [2018-08-08 03:31:04,076 INFO L418 ceAbstractionStarter]: At program point L28(line 28) the Hoare annotation is: (let ((.cse0 (* 2 main_~tokenlen~0)) (.cse1 (* 2 main_~scheme~0))) (and (<= (* 2 main_~urilen~0) 2000000) (<= .cse0 2000000) (<= 2 (* 2 main_~cp~0)) (<= 2 .cse0) (<= (+ main_~cp~0 1) main_~urilen~0) (<= 0 .cse1) (<= .cse1 2000000))) [2018-08-08 03:31:04,076 INFO L418 ceAbstractionStarter]: At program point L28-1(line 28) the Hoare annotation is: (let ((.cse0 (* 2 main_~tokenlen~0)) (.cse1 (* 2 main_~scheme~0))) (and (<= (* 2 main_~urilen~0) 2000000) (<= .cse0 2000000) (<= 2 (* 2 main_~cp~0)) (<= 2 .cse0) (<= (+ main_~cp~0 1) main_~urilen~0) (<= 0 .cse1) (<= .cse1 2000000))) [2018-08-08 03:31:04,077 INFO L418 ceAbstractionStarter]: At program point L53(line 53) the Hoare annotation is: (let ((.cse5 (* 2 main_~scheme~0))) (let ((.cse0 (<= (* 2 main_~urilen~0) 2000000)) (.cse1 (<= (+ main_~cp~0 2) main_~urilen~0)) (.cse2 (<= .cse5 2000000)) (.cse3 (<= 0 .cse5))) (or (and (and .cse0 .cse1 (= main_~c~0 0) .cse2 .cse3 (<= main_~tokenlen~0 (+ main_~c~0 1000000))) (<= 4 (* 2 main_~cp~0)) (<= 2 (+ main_~tokenlen~0 main_~c~0))) (let ((.cse4 (+ main_~c~0 2))) (and .cse0 .cse1 .cse2 (<= .cse4 main_~cp~0) (<= .cse4 main_~tokenlen~0) (<= (* 2 main_~tokenlen~0) 2000000) .cse3 (<= 2 (* 2 main_~c~0))))))) [2018-08-08 03:31:04,077 INFO L422 ceAbstractionStarter]: For program point L20(line 20) no Hoare annotation was computed. [2018-08-08 03:31:04,077 INFO L418 ceAbstractionStarter]: At program point L53-1(line 53) the Hoare annotation is: (let ((.cse5 (* 2 main_~scheme~0))) (let ((.cse0 (<= (* 2 main_~urilen~0) 2000000)) (.cse1 (<= (+ main_~cp~0 2) main_~urilen~0)) (.cse2 (<= .cse5 2000000)) (.cse3 (<= 0 .cse5))) (or (and (and .cse0 .cse1 (= main_~c~0 0) .cse2 .cse3 (<= main_~tokenlen~0 (+ main_~c~0 1000000))) (<= 4 (* 2 main_~cp~0)) (<= 2 (+ main_~tokenlen~0 main_~c~0))) (let ((.cse4 (+ main_~c~0 2))) (and .cse0 .cse1 .cse2 (<= .cse4 main_~cp~0) (<= .cse4 main_~tokenlen~0) (<= (* 2 main_~tokenlen~0) 2000000) .cse3 (<= 2 (* 2 main_~c~0))))))) [2018-08-08 03:31:04,077 INFO L422 ceAbstractionStarter]: For program point L29(line 29) no Hoare annotation was computed. [2018-08-08 03:31:04,077 INFO L422 ceAbstractionStarter]: For program point L54(line 54) no Hoare annotation was computed. [2018-08-08 03:31:04,077 INFO L422 ceAbstractionStarter]: For program point L21(line 21) no Hoare annotation was computed. [2018-08-08 03:31:04,078 INFO L422 ceAbstractionStarter]: For program point L21-1(lines 11 69) no Hoare annotation was computed. [2018-08-08 03:31:04,078 INFO L422 ceAbstractionStarter]: For program point mainFINAL(lines 10 69) no Hoare annotation was computed. [2018-08-08 03:31:04,078 INFO L422 ceAbstractionStarter]: For program point L30(lines 30 66) no Hoare annotation was computed. [2018-08-08 03:31:04,078 INFO L425 ceAbstractionStarter]: At program point mainENTRY(lines 10 69) the Hoare annotation is: true [2018-08-08 03:31:04,078 INFO L422 ceAbstractionStarter]: For program point L55(lines 55 61) no Hoare annotation was computed. [2018-08-08 03:31:04,078 INFO L422 ceAbstractionStarter]: For program point L22(lines 11 69) no Hoare annotation was computed. [2018-08-08 03:31:04,078 INFO L422 ceAbstractionStarter]: For program point L55-1(lines 55 61) no Hoare annotation was computed. [2018-08-08 03:31:04,078 INFO L422 ceAbstractionStarter]: For program point L47(lines 47 65) no Hoare annotation was computed. [2018-08-08 03:31:04,079 INFO L418 ceAbstractionStarter]: At program point L39(line 39) the Hoare annotation is: (let ((.cse7 (* 2 main_~scheme~0)) (.cse5 (* 2 main_~tokenlen~0)) (.cse0 (+ main_~cp~0 1))) (let ((.cse2 (* 2 main_~cp~0)) (.cse1 (<= .cse0 main_~urilen~0)) (.cse3 (<= .cse5 2000000)) (.cse4 (<= 0 .cse7)) (.cse6 (<= .cse7 2000000))) (or (and (<= main_~urilen~0 .cse0) .cse1 (<= .cse2 1999998) .cse3 .cse4 (<= 0 (+ .cse5 2000000)) (<= 3 (+ main_~urilen~0 main_~cp~0)) .cse6) (and (and (<= (* 2 main_~urilen~0) 2000000) (<= 2 .cse2) .cse1 .cse3 .cse4) (<= 2 .cse5) .cse6)))) [2018-08-08 03:31:04,079 INFO L418 ceAbstractionStarter]: At program point L31(line 31) the Hoare annotation is: (let ((.cse0 (* 2 main_~tokenlen~0)) (.cse1 (* 2 main_~scheme~0))) (and (<= (* 2 main_~urilen~0) 2000000) (<= .cse0 2000000) (<= 2 (* 2 main_~cp~0)) (<= 2 .cse0) (<= (+ main_~cp~0 1) main_~urilen~0) (<= 0 .cse1) (<= .cse1 2000000))) [2018-08-08 03:31:04,079 INFO L418 ceAbstractionStarter]: At program point L31-1(line 31) the Hoare annotation is: (let ((.cse0 (* 2 main_~tokenlen~0)) (.cse1 (* 2 main_~scheme~0))) (and (<= (* 2 main_~urilen~0) 2000000) (<= .cse0 2000000) (<= 2 (* 2 main_~cp~0)) (<= 2 .cse0) (<= (+ main_~cp~0 1) main_~urilen~0) (<= 0 .cse1) (<= .cse1 2000000))) [2018-08-08 03:31:04,079 INFO L422 ceAbstractionStarter]: For program point L23(lines 11 69) no Hoare annotation was computed. [2018-08-08 03:31:04,080 INFO L422 ceAbstractionStarter]: For program point L40(lines 30 66) no Hoare annotation was computed. [2018-08-08 03:31:04,080 INFO L418 ceAbstractionStarter]: At program point L57(line 57) the Hoare annotation is: (let ((.cse0 (+ main_~c~0 1)) (.cse1 (* 2 main_~scheme~0))) (and (<= .cse0 main_~tokenlen~0) (<= .cse0 main_~cp~0) (<= (* 2 main_~urilen~0) 2000000) (<= (* 2 main_~tokenlen~0) 2000000) (<= .cse1 2000000) (<= 0 .cse1) (<= (+ main_~cp~0 2) main_~urilen~0) (<= 2 (* 2 main_~c~0)))) [2018-08-08 03:31:04,080 INFO L418 ceAbstractionStarter]: At program point L57-1(line 57) the Hoare annotation is: (let ((.cse0 (+ main_~c~0 1)) (.cse1 (* 2 main_~scheme~0))) (and (<= .cse0 main_~tokenlen~0) (<= .cse0 main_~cp~0) (<= (* 2 main_~urilen~0) 2000000) (<= (* 2 main_~tokenlen~0) 2000000) (<= .cse1 2000000) (<= 0 .cse1) (<= (+ main_~cp~0 2) main_~urilen~0) (<= 2 (* 2 main_~c~0)))) [2018-08-08 03:31:04,080 INFO L418 ceAbstractionStarter]: At program point L49(line 49) the Hoare annotation is: (let ((.cse0 (* 2 main_~scheme~0))) (and (<= main_~tokenlen~0 (+ main_~c~0 1000000)) (= main_~c~0 0) (<= 2 (* 2 main_~tokenlen~0)) (<= .cse0 2000000) (<= 0 .cse0) (<= (+ main_~cp~0 2) main_~urilen~0) (<= 2 (+ main_~c~0 main_~cp~0)) (<= (+ main_~c~0 main_~urilen~0) 1000000))) [2018-08-08 03:31:04,080 INFO L418 ceAbstractionStarter]: At program point L49-1(line 49) the Hoare annotation is: (let ((.cse0 (* 2 main_~scheme~0))) (and (<= main_~tokenlen~0 (+ main_~c~0 1000000)) (= main_~c~0 0) (<= 2 (* 2 main_~tokenlen~0)) (<= .cse0 2000000) (<= 0 .cse0) (<= (+ main_~cp~0 2) main_~urilen~0) (<= 2 (+ main_~c~0 main_~cp~0)) (<= (+ main_~c~0 main_~urilen~0) 1000000))) [2018-08-08 03:31:04,080 INFO L422 ceAbstractionStarter]: For program point L33(lines 33 38) no Hoare annotation was computed. [2018-08-08 03:31:04,081 INFO L418 ceAbstractionStarter]: At program point L33-2(lines 32 38) the Hoare annotation is: (let ((.cse0 (* 2 main_~tokenlen~0)) (.cse1 (* 2 main_~scheme~0))) (and (<= (* 2 main_~urilen~0) 2000000) (<= .cse0 2000000) (<= 2 (* 2 main_~cp~0)) (<= 2 .cse0) (<= (+ main_~cp~0 1) main_~urilen~0) (<= 0 .cse1) (<= .cse1 2000000))) [2018-08-08 03:31:04,081 INFO L418 ceAbstractionStarter]: At program point L33-3(lines 33 38) the Hoare annotation is: (let ((.cse7 (* 2 main_~scheme~0)) (.cse5 (* 2 main_~tokenlen~0)) (.cse0 (+ main_~cp~0 1))) (let ((.cse2 (* 2 main_~cp~0)) (.cse1 (<= .cse0 main_~urilen~0)) (.cse3 (<= .cse5 2000000)) (.cse4 (<= 0 .cse7)) (.cse6 (<= .cse7 2000000))) (or (and (<= main_~urilen~0 .cse0) .cse1 (<= .cse2 1999998) .cse3 .cse4 (<= 0 (+ .cse5 2000000)) (<= 3 (+ main_~urilen~0 main_~cp~0)) .cse6) (and (and (<= (* 2 main_~urilen~0) 2000000) (<= 2 .cse2) .cse1 .cse3 .cse4) (<= 2 .cse5) .cse6)))) [2018-08-08 03:31:04,081 INFO L418 ceAbstractionStarter]: At program point L58(line 58) the Hoare annotation is: (let ((.cse0 (+ main_~c~0 1)) (.cse1 (* 2 main_~scheme~0))) (and (<= .cse0 main_~tokenlen~0) (<= .cse0 main_~cp~0) (<= (* 2 main_~urilen~0) 2000000) (<= (* 2 main_~tokenlen~0) 2000000) (<= .cse1 2000000) (<= 0 .cse1) (<= (+ main_~cp~0 2) main_~urilen~0) (<= 2 (* 2 main_~c~0)))) [2018-08-08 03:31:04,081 INFO L418 ceAbstractionStarter]: At program point L42(line 42) the Hoare annotation is: (let ((.cse0 (* 2 main_~tokenlen~0)) (.cse1 (* 2 main_~scheme~0))) (and (<= (* 2 main_~urilen~0) 2000000) (<= .cse0 2000000) (<= 2 (* 2 main_~cp~0)) (<= 2 .cse0) (<= 0 .cse1) (<= .cse1 2000000) (<= (+ main_~cp~0 2) main_~urilen~0))) [2018-08-08 03:31:04,081 INFO L418 ceAbstractionStarter]: At program point L42-1(line 42) the Hoare annotation is: (let ((.cse0 (* 2 main_~tokenlen~0)) (.cse1 (* 2 main_~scheme~0))) (and (<= (* 2 main_~urilen~0) 2000000) (<= .cse0 2000000) (<= 2 (* 2 main_~cp~0)) (<= 2 .cse0) (<= 0 .cse1) (<= .cse1 2000000) (<= (+ main_~cp~0 2) main_~urilen~0))) [2018-08-08 03:31:04,081 INFO L425 ceAbstractionStarter]: At program point L67(lines 11 69) the Hoare annotation is: true [2018-08-08 03:31:04,081 INFO L422 ceAbstractionStarter]: For program point L34(line 34) no Hoare annotation was computed. [2018-08-08 03:31:04,081 INFO L418 ceAbstractionStarter]: At program point L59(line 59) the Hoare annotation is: (let ((.cse0 (+ main_~c~0 1)) (.cse1 (* 2 main_~scheme~0))) (and (<= .cse0 main_~tokenlen~0) (<= .cse0 main_~cp~0) (<= (* 2 main_~urilen~0) 2000000) (<= (* 2 main_~tokenlen~0) 2000000) (<= .cse1 2000000) (<= 0 .cse1) (<= (+ main_~cp~0 2) main_~urilen~0) (<= 2 (* 2 main_~c~0)))) [2018-08-08 03:31:04,082 INFO L422 ceAbstractionStarter]: For program point L51(lines 51 63) no Hoare annotation was computed. [2018-08-08 03:31:04,082 INFO L422 ceAbstractionStarter]: For program point L18(line 18) no Hoare annotation was computed. [2018-08-08 03:31:04,082 INFO L418 ceAbstractionStarter]: At program point L51-2(lines 50 63) the Hoare annotation is: (let ((.cse4 (* 2 main_~cp~0)) (.cse5 (* 2 main_~tokenlen~0)) (.cse6 (* 2 main_~scheme~0))) (let ((.cse3 (+ main_~c~0 2)) (.cse0 (and (<= (* 2 main_~urilen~0) 2000000) (<= 2 .cse4) (<= (+ main_~cp~0 1) main_~urilen~0) (<= .cse5 2000000) (<= 0 .cse6))) (.cse2 (<= .cse6 2000000))) (or (and (let ((.cse1 (= main_~c~0 0))) (or (and .cse0 .cse1 .cse2 (<= .cse3 main_~tokenlen~0)) (and .cse0 (<= (+ main_~cp~0 2) main_~urilen~0) .cse1 .cse2))) (<= 4 .cse4) (<= 2 .cse5) (<= (+ main_~c~0 4) main_~urilen~0)) (and (<= .cse3 main_~cp~0) (<= (+ main_~c~0 1) main_~tokenlen~0) (and .cse0 .cse2) (<= 2 (* 2 main_~c~0)))))) [2018-08-08 03:31:04,082 INFO L422 ceAbstractionStarter]: For program point L43(lines 30 66) no Hoare annotation was computed. [2018-08-08 03:31:04,082 INFO L418 ceAbstractionStarter]: At program point L35(line 35) the Hoare annotation is: (let ((.cse0 (* 2 main_~tokenlen~0)) (.cse1 (* 2 main_~scheme~0))) (and (<= (* 2 main_~urilen~0) 2000000) (<= .cse0 2000000) (<= 2 (* 2 main_~cp~0)) (<= 2 .cse0) (<= 0 .cse1) (<= .cse1 2000000) (<= (+ main_~cp~0 2) main_~urilen~0))) [2018-08-08 03:31:04,082 INFO L418 ceAbstractionStarter]: At program point L35-1(line 35) the Hoare annotation is: (let ((.cse0 (* 2 main_~tokenlen~0)) (.cse1 (* 2 main_~scheme~0))) (and (<= (* 2 main_~urilen~0) 2000000) (<= .cse0 2000000) (<= 2 (* 2 main_~cp~0)) (<= 2 .cse0) (<= 0 .cse1) (<= .cse1 2000000) (<= (+ main_~cp~0 2) main_~urilen~0))) [2018-08-08 03:31:04,095 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.08 03:31:04 BoogieIcfgContainer [2018-08-08 03:31:04,095 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-08-08 03:31:04,096 INFO L168 Benchmark]: Toolchain (without parser) took 30210.01 ms. Allocated memory was 1.5 GB in the beginning and 2.6 GB in the end (delta: 1.1 GB). Free memory was 1.4 GB in the beginning and 1.8 GB in the end (delta: -374.9 MB). Peak memory consumption was 878.3 MB. Max. memory is 7.1 GB. [2018-08-08 03:31:04,097 INFO L168 Benchmark]: CDTParser took 0.24 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. [2018-08-08 03:31:04,098 INFO L168 Benchmark]: CACSL2BoogieTranslator took 316.77 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. [2018-08-08 03:31:04,099 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.75 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. [2018-08-08 03:31:04,099 INFO L168 Benchmark]: Boogie Preprocessor took 30.40 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. [2018-08-08 03:31:04,100 INFO L168 Benchmark]: RCFGBuilder took 769.57 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 729.3 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -773.4 MB). Peak memory consumption was 27.2 MB. Max. memory is 7.1 GB. [2018-08-08 03:31:04,101 INFO L168 Benchmark]: TraceAbstraction took 29061.10 ms. Allocated memory was 2.2 GB in the beginning and 2.6 GB in the end (delta: 341.3 MB). Free memory was 2.2 GB in the beginning and 1.8 GB in the end (delta: 387.9 MB). Peak memory consumption was 911.8 MB. Max. memory is 7.1 GB. [2018-08-08 03:31:04,106 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 316.77 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 26.75 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 30.40 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 769.57 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 729.3 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -773.4 MB). Peak memory consumption was 27.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 29061.10 ms. Allocated memory was 2.2 GB in the beginning and 2.6 GB in the end (delta: 341.3 MB). Free memory was 2.2 GB in the beginning and 1.8 GB in the end (delta: 387.9 MB). Peak memory consumption was 911.8 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: 50]: Loop Invariant Derived loop invariant: (((((((((((2 * urilen <= 2000000 && 2 <= 2 * cp) && cp + 1 <= urilen) && 2 * tokenlen <= 2000000) && 0 <= 2 * scheme) && c == 0) && 2 * scheme <= 2000000) && c + 2 <= tokenlen) || (((((((2 * urilen <= 2000000 && 2 <= 2 * cp) && cp + 1 <= urilen) && 2 * tokenlen <= 2000000) && 0 <= 2 * scheme) && cp + 2 <= urilen) && c == 0) && 2 * scheme <= 2000000)) && 4 <= 2 * cp) && 2 <= 2 * tokenlen) && c + 4 <= urilen) || (((c + 2 <= cp && c + 1 <= tokenlen) && ((((2 * urilen <= 2000000 && 2 <= 2 * cp) && cp + 1 <= urilen) && 2 * tokenlen <= 2000000) && 0 <= 2 * scheme) && 2 * scheme <= 2000000) && 2 <= 2 * c) - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: (((((2 * urilen <= 2000000 && 2 * tokenlen <= 2000000) && 2 <= 2 * cp) && 2 <= 2 * tokenlen) && cp + 1 <= urilen) && 0 <= 2 * scheme) && 2 * scheme <= 2000000 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 55 locations, 1 error locations. SAFE Result, 28.9s OverallTime, 6 OverallIterations, 21 TraceHistogramMax, 12.7s AutomataDifference, 0.0s DeadEndRemovalTime, 9.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 285 SDtfs, 1050 SDslu, 2112 SDs, 0 SdLazy, 2628 SolverSat, 1660 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.8s Time, PredicateUnifierStatistics: 12 DeclaredPredicates, 531 GetRequests, 365 SyntacticMatches, 0 SemanticMatches, 166 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1080 ImplicationChecksByTransitivity, 7.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=87occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 1.0s AbstIntTime, 6 AbstIntIterations, 6 AbstIntStrong, 0.9128135092420809 AbsIntWeakeningRatio, 0.4090909090909091 AbsIntAvgWeakeningVarsNumRemoved, 9.041125541125542 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 69 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 26 LocationsWithAnnotation, 94 PreInvPairs, 143 NumberOfFragments, 1044 HoareAnnotationTreeSize, 94 FomulaSimplifications, 17358 FormulaSimplificationTreeSizeReduction, 1.2s HoareSimplificationTime, 26 FomulaSimplificationsInter, 20596 FormulaSimplificationTreeSizeReductionInter, 7.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: No data available, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/apache-escape-absolute_true-unreach-call_true-termination.i_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-08-08_03-31-04-123.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/apache-escape-absolute_true-unreach-call_true-termination.i_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-08-08_03-31-04-123.csv Received shutdown request...