java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf -i ../../../trunk/examples/svcomp/loop-invgen/apache-escape-absolute_true-unreach-call_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-3142e50-m [2018-09-11 19:40:23,797 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-11 19:40:23,799 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-11 19:40:23,815 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-11 19:40:23,816 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-11 19:40:23,817 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-11 19:40:23,818 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-11 19:40:23,820 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-11 19:40:23,822 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-11 19:40:23,823 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-11 19:40:23,823 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-11 19:40:23,824 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-11 19:40:23,825 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-11 19:40:23,826 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-11 19:40:23,827 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-11 19:40:23,828 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-11 19:40:23,828 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-11 19:40:23,831 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-11 19:40:23,833 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-11 19:40:23,834 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-11 19:40:23,836 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-11 19:40:23,837 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-11 19:40:23,840 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-09-11 19:40:23,849 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf [2018-09-11 19:40:23,869 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-11 19:40:23,871 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-11 19:40:23,872 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-11 19:40:23,872 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-11 19:40:23,872 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-11 19:40:23,872 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-11 19:40:23,872 INFO L133 SettingsManager]: * Congruence Domain=false [2018-09-11 19:40:23,873 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-11 19:40:23,873 INFO L133 SettingsManager]: * Abstract domain=OctagonDomain [2018-09-11 19:40:23,873 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-11 19:40:23,873 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-11 19:40:23,874 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-11 19:40:23,875 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-11 19:40:23,875 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-11 19:40:23,875 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-11 19:40:23,875 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-11 19:40:23,875 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-11 19:40:23,876 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-11 19:40:23,876 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-11 19:40:23,876 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-11 19:40:23,876 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-11 19:40:23,877 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-11 19:40:23,878 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-11 19:40:23,878 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-11 19:40:23,878 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-11 19:40:23,878 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-11 19:40:23,879 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-11 19:40:23,879 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-11 19:40:23,879 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-11 19:40:23,879 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-11 19:40:23,879 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-11 19:40:23,880 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-11 19:40:23,880 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-11 19:40:23,880 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-11 19:40:23,956 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-11 19:40:23,971 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-11 19:40:23,977 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-11 19:40:23,980 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-11 19:40:23,981 INFO L276 PluginConnector]: CDTParser initialized [2018-09-11 19:40:23,981 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/apache-escape-absolute_true-unreach-call_true-termination.i [2018-09-11 19:40:24,330 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e55938a6b/f229bcd11bd74fe79aed748320c99da5/FLAG97ced52a6 [2018-09-11 19:40:24,562 INFO L276 CDTParser]: Found 1 translation units. [2018-09-11 19:40:24,563 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute_true-unreach-call_true-termination.i [2018-09-11 19:40:24,574 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e55938a6b/f229bcd11bd74fe79aed748320c99da5/FLAG97ced52a6 [2018-09-11 19:40:24,592 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e55938a6b/f229bcd11bd74fe79aed748320c99da5 [2018-09-11 19:40:24,603 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-11 19:40:24,606 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-11 19:40:24,608 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-11 19:40:24,608 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-11 19:40:24,616 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-11 19:40:24,618 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 07:40:24" (1/1) ... [2018-09-11 19:40:24,622 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f98f759 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 07:40:24, skipping insertion in model container [2018-09-11 19:40:24,622 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 07:40:24" (1/1) ... [2018-09-11 19:40:24,845 INFO L180 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-09-11 19:40:24,915 INFO L175 PostProcessor]: Settings: Checked method=main [2018-09-11 19:40:24,937 INFO L431 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-11 19:40:24,967 INFO L175 PostProcessor]: Settings: Checked method=main [2018-09-11 19:40:25,005 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 07:40:25 WrapperNode [2018-09-11 19:40:25,009 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-11 19:40:25,010 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-11 19:40:25,010 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-11 19:40:25,010 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-11 19:40:25,032 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 07:40:25" (1/1) ... [2018-09-11 19:40:25,041 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 07:40:25" (1/1) ... [2018-09-11 19:40:25,048 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-11 19:40:25,048 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-11 19:40:25,048 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-11 19:40:25,048 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-11 19:40:25,061 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 07:40:25" (1/1) ... [2018-09-11 19:40:25,062 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 07:40:25" (1/1) ... [2018-09-11 19:40:25,063 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 07:40:25" (1/1) ... [2018-09-11 19:40:25,064 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 07:40:25" (1/1) ... [2018-09-11 19:40:25,067 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 07:40:25" (1/1) ... [2018-09-11 19:40:25,082 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 07:40:25" (1/1) ... [2018-09-11 19:40:25,084 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 07:40:25" (1/1) ... [2018-09-11 19:40:25,090 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-11 19:40:25,094 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-11 19:40:25,094 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-11 19:40:25,094 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-11 19:40:25,096 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 07:40:25" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-11 19:40:25,292 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-11 19:40:25,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-11 19:40:25,293 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 [2018-09-11 19:40:25,293 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 [2018-09-11 19:40:25,293 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-11 19:40:25,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-11 19:40:25,293 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-11 19:40:25,293 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-11 19:40:25,871 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-11 19:40:25,872 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 07:40:25 BoogieIcfgContainer [2018-09-11 19:40:25,873 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-11 19:40:25,874 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-11 19:40:25,874 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-11 19:40:25,878 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-11 19:40:25,878 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.09 07:40:24" (1/3) ... [2018-09-11 19:40:25,879 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ea9f839 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.09 07:40:25, skipping insertion in model container [2018-09-11 19:40:25,879 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 07:40:25" (2/3) ... [2018-09-11 19:40:25,880 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ea9f839 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.09 07:40:25, skipping insertion in model container [2018-09-11 19:40:25,880 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 07:40:25" (3/3) ... [2018-09-11 19:40:25,882 INFO L112 eAbstractionObserver]: Analyzing ICFG apache-escape-absolute_true-unreach-call_true-termination.i [2018-09-11 19:40:25,892 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-11 19:40:25,901 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-11 19:40:25,962 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-11 19:40:25,963 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-11 19:40:25,963 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-11 19:40:25,963 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-11 19:40:25,963 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-11 19:40:25,964 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-11 19:40:25,964 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-11 19:40:25,964 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-11 19:40:25,964 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-11 19:40:25,984 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states. [2018-09-11 19:40:25,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-09-11 19:40:25,992 INFO L368 BasicCegarLoop]: Found error trace [2018-09-11 19:40:25,993 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-11 19:40:25,995 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]=== [2018-09-11 19:40:26,001 INFO L82 PathProgramCache]: Analyzing trace with hash -2143096435, now seen corresponding path program 1 times [2018-09-11 19:40:26,004 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-11 19:40:26,005 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 17 with the following transitions: [2018-09-11 19:40:26,007 INFO L202 CegarAbsIntRunner]: [0], [1], [4], [6], [15], [19], [23], [27], [30], [36], [42], [50], [133], [134], [135], [137] [2018-09-11 19:40:26,068 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-11 19:40:26,068 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-11 19:40:26,136 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-11 19:40:26,138 INFO L272 AbstractInterpreter]: Visited 15 different actions 15 times. Never merged. Never widened. Never found a fixpoint. Largest state had 8 variables. [2018-09-11 19:40:26,172 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-11 19:40:26,252 INFO L232 lantSequenceWeakener]: Weakened 4 states. On average, predicates are now at 41.67% of their original sizes. [2018-09-11 19:40:26,252 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-11 19:40:26,858 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-11 19:40:26,860 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-11 19:40:26,861 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-11 19:40:26,861 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-11 19:40:26,867 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-11 19:40:26,874 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-11 19:40:26,875 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2018-09-11 19:40:26,878 INFO L87 Difference]: Start difference. First operand 55 states. Second operand 12 states. [2018-09-11 19:40:28,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-11 19:40:28,718 INFO L93 Difference]: Finished difference Result 145 states and 260 transitions. [2018-09-11 19:40:28,721 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-11 19:40:28,723 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 16 [2018-09-11 19:40:28,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-11 19:40:28,735 INFO L225 Difference]: With dead ends: 145 [2018-09-11 19:40:28,736 INFO L226 Difference]: Without dead ends: 80 [2018-09-11 19:40:28,742 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 18 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2018-09-11 19:40:28,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2018-09-11 19:40:28,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 64. [2018-09-11 19:40:28,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2018-09-11 19:40:28,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 91 transitions. [2018-09-11 19:40:28,820 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 91 transitions. Word has length 16 [2018-09-11 19:40:28,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-11 19:40:28,821 INFO L480 AbstractCegarLoop]: Abstraction has 64 states and 91 transitions. [2018-09-11 19:40:28,821 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-11 19:40:28,821 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 91 transitions. [2018-09-11 19:40:28,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-09-11 19:40:28,825 INFO L368 BasicCegarLoop]: Found error trace [2018-09-11 19:40:28,825 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] [2018-09-11 19:40:28,825 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]=== [2018-09-11 19:40:28,826 INFO L82 PathProgramCache]: Analyzing trace with hash 196313274, now seen corresponding path program 1 times [2018-09-11 19:40:28,826 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-11 19:40:28,826 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 52 with the following transitions: [2018-09-11 19:40:28,827 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] [2018-09-11 19:40:28,830 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-11 19:40:28,830 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-11 19:40:28,875 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-11 19:40:28,875 INFO L272 AbstractInterpreter]: Visited 33 different actions 53 times. Never merged. Never widened. Never found a fixpoint. Largest state had 9 variables. [2018-09-11 19:40:28,909 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-11 19:40:29,016 INFO L232 lantSequenceWeakener]: Weakened 31 states. On average, predicates are now at 67.96% of their original sizes. [2018-09-11 19:40:29,017 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-11 19:40:29,391 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-11 19:40:29,393 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-11 19:40:29,394 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-09-11 19:40:29,394 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-11 19:40:29,395 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-11 19:40:29,396 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-11 19:40:29,396 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2018-09-11 19:40:29,396 INFO L87 Difference]: Start difference. First operand 64 states and 91 transitions. Second operand 14 states. [2018-09-11 19:40:30,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-11 19:40:30,794 INFO L93 Difference]: Finished difference Result 110 states and 157 transitions. [2018-09-11 19:40:30,795 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-09-11 19:40:30,795 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 51 [2018-09-11 19:40:30,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-11 19:40:30,798 INFO L225 Difference]: With dead ends: 110 [2018-09-11 19:40:30,798 INFO L226 Difference]: Without dead ends: 80 [2018-09-11 19:40:30,801 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 56 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=89, Invalid=253, Unknown=0, NotChecked=0, Total=342 [2018-09-11 19:40:30,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2018-09-11 19:40:30,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 64. [2018-09-11 19:40:30,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2018-09-11 19:40:30,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 90 transitions. [2018-09-11 19:40:30,823 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 90 transitions. Word has length 51 [2018-09-11 19:40:30,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-11 19:40:30,824 INFO L480 AbstractCegarLoop]: Abstraction has 64 states and 90 transitions. [2018-09-11 19:40:30,824 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-09-11 19:40:30,824 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 90 transitions. [2018-09-11 19:40:30,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-09-11 19:40:30,826 INFO L368 BasicCegarLoop]: Found error trace [2018-09-11 19:40:30,826 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] [2018-09-11 19:40:30,827 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]=== [2018-09-11 19:40:30,827 INFO L82 PathProgramCache]: Analyzing trace with hash -1850547815, now seen corresponding path program 1 times [2018-09-11 19:40:30,827 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-11 19:40:30,828 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 53 with the following transitions: [2018-09-11 19:40:30,828 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] [2018-09-11 19:40:30,831 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-11 19:40:30,831 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-11 19:40:30,870 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-11 19:40:30,870 INFO L272 AbstractInterpreter]: Visited 35 different actions 59 times. Never merged. Never widened. Never found a fixpoint. Largest state had 10 variables. [2018-09-11 19:40:30,884 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-11 19:40:30,955 INFO L232 lantSequenceWeakener]: Weakened 34 states. On average, predicates are now at 66.08% of their original sizes. [2018-09-11 19:40:30,955 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-11 19:40:31,393 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-11 19:40:31,394 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-11 19:40:31,395 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2018-09-11 19:40:31,395 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-11 19:40:31,396 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-09-11 19:40:31,396 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-09-11 19:40:31,396 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2018-09-11 19:40:31,397 INFO L87 Difference]: Start difference. First operand 64 states and 90 transitions. Second operand 15 states. [2018-09-11 19:40:32,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-11 19:40:32,360 INFO L93 Difference]: Finished difference Result 75 states and 102 transitions. [2018-09-11 19:40:32,363 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-11 19:40:32,363 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 52 [2018-09-11 19:40:32,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-11 19:40:32,367 INFO L225 Difference]: With dead ends: 75 [2018-09-11 19:40:32,367 INFO L226 Difference]: Without dead ends: 73 [2018-09-11 19:40:32,368 INFO L604 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 [2018-09-11 19:40:32,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2018-09-11 19:40:32,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 68. [2018-09-11 19:40:32,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2018-09-11 19:40:32,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 93 transitions. [2018-09-11 19:40:32,400 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 93 transitions. Word has length 52 [2018-09-11 19:40:32,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-11 19:40:32,401 INFO L480 AbstractCegarLoop]: Abstraction has 68 states and 93 transitions. [2018-09-11 19:40:32,401 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-09-11 19:40:32,401 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 93 transitions. [2018-09-11 19:40:32,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2018-09-11 19:40:32,405 INFO L368 BasicCegarLoop]: Found error trace [2018-09-11 19:40:32,405 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] [2018-09-11 19:40:32,406 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]=== [2018-09-11 19:40:32,406 INFO L82 PathProgramCache]: Analyzing trace with hash 1298346981, now seen corresponding path program 1 times [2018-09-11 19:40:32,406 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-11 19:40:32,407 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 89 with the following transitions: [2018-09-11 19:40:32,407 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] [2018-09-11 19:40:32,410 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-11 19:40:32,411 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-11 19:40:32,444 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-11 19:40:32,445 INFO L272 AbstractInterpreter]: Visited 53 different actions 101 times. Never merged. Never widened. Never found a fixpoint. Largest state had 14 variables. [2018-09-11 19:40:32,486 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-11 19:40:32,598 INFO L232 lantSequenceWeakener]: Weakened 62 states. On average, predicates are now at 60.4% of their original sizes. [2018-09-11 19:40:32,599 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-11 19:40:33,420 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-11 19:40:33,420 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-11 19:40:33,421 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2018-09-11 19:40:33,421 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-11 19:40:33,421 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-09-11 19:40:33,422 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-09-11 19:40:33,422 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=385, Unknown=0, NotChecked=0, Total=462 [2018-09-11 19:40:33,422 INFO L87 Difference]: Start difference. First operand 68 states and 93 transitions. Second operand 22 states. [2018-09-11 19:40:36,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-11 19:40:36,061 INFO L93 Difference]: Finished difference Result 102 states and 141 transitions. [2018-09-11 19:40:36,062 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-09-11 19:40:36,062 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 88 [2018-09-11 19:40:36,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-11 19:40:36,065 INFO L225 Difference]: With dead ends: 102 [2018-09-11 19:40:36,066 INFO L226 Difference]: Without dead ends: 100 [2018-09-11 19:40:36,067 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 102 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 221 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=271, Invalid=989, Unknown=0, NotChecked=0, Total=1260 [2018-09-11 19:40:36,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2018-09-11 19:40:36,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 81. [2018-09-11 19:40:36,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2018-09-11 19:40:36,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 110 transitions. [2018-09-11 19:40:36,092 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 110 transitions. Word has length 88 [2018-09-11 19:40:36,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-11 19:40:36,093 INFO L480 AbstractCegarLoop]: Abstraction has 81 states and 110 transitions. [2018-09-11 19:40:36,093 INFO L481 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-09-11 19:40:36,093 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 110 transitions. [2018-09-11 19:40:36,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2018-09-11 19:40:36,096 INFO L368 BasicCegarLoop]: Found error trace [2018-09-11 19:40:36,096 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] [2018-09-11 19:40:36,096 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]=== [2018-09-11 19:40:36,097 INFO L82 PathProgramCache]: Analyzing trace with hash 538652630, now seen corresponding path program 1 times [2018-09-11 19:40:36,097 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-11 19:40:36,097 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 124 with the following transitions: [2018-09-11 19:40:36,097 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] [2018-09-11 19:40:36,101 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-11 19:40:36,101 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-11 19:40:36,228 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-11 19:40:36,228 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. [2018-09-11 19:40:36,272 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-11 19:40:36,391 INFO L232 lantSequenceWeakener]: Weakened 91 states. On average, predicates are now at 60.02% of their original sizes. [2018-09-11 19:40:36,391 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-11 19:40:37,221 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-11 19:40:37,221 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-11 19:40:37,222 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2018-09-11 19:40:37,222 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-11 19:40:37,222 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2018-09-11 19:40:37,223 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2018-09-11 19:40:37,223 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=505, Unknown=0, NotChecked=0, Total=600 [2018-09-11 19:40:37,224 INFO L87 Difference]: Start difference. First operand 81 states and 110 transitions. Second operand 25 states. [2018-09-11 19:40:40,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-11 19:40:40,086 INFO L93 Difference]: Finished difference Result 122 states and 169 transitions. [2018-09-11 19:40:40,086 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2018-09-11 19:40:40,086 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 123 [2018-09-11 19:40:40,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-11 19:40:40,091 INFO L225 Difference]: With dead ends: 122 [2018-09-11 19:40:40,091 INFO L226 Difference]: Without dead ends: 100 [2018-09-11 19:40:40,093 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 142 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 364 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=397, Invalid=1495, Unknown=0, NotChecked=0, Total=1892 [2018-09-11 19:40:40,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2018-09-11 19:40:40,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 87. [2018-09-11 19:40:40,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2018-09-11 19:40:40,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 118 transitions. [2018-09-11 19:40:40,120 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 118 transitions. Word has length 123 [2018-09-11 19:40:40,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-11 19:40:40,120 INFO L480 AbstractCegarLoop]: Abstraction has 87 states and 118 transitions. [2018-09-11 19:40:40,121 INFO L481 AbstractCegarLoop]: Interpolant automaton has 25 states. [2018-09-11 19:40:40,121 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 118 transitions. [2018-09-11 19:40:40,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2018-09-11 19:40:40,124 INFO L368 BasicCegarLoop]: Found error trace [2018-09-11 19:40:40,124 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] [2018-09-11 19:40:40,124 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]=== [2018-09-11 19:40:40,125 INFO L82 PathProgramCache]: Analyzing trace with hash 1314950467, now seen corresponding path program 1 times [2018-09-11 19:40:40,125 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-11 19:40:40,125 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 139 with the following transitions: [2018-09-11 19:40:40,125 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] [2018-09-11 19:40:40,128 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-11 19:40:40,128 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-11 19:40:40,239 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-11 19:40:40,239 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. [2018-09-11 19:40:40,259 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-11 19:40:40,360 INFO L232 lantSequenceWeakener]: Weakened 104 states. On average, predicates are now at 58.64% of their original sizes. [2018-09-11 19:40:40,360 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-11 19:40:41,242 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-11 19:40:41,243 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-11 19:40:41,243 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2018-09-11 19:40:41,243 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-11 19:40:41,244 INFO L459 AbstractCegarLoop]: Interpolant automaton has 26 states [2018-09-11 19:40:41,245 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2018-09-11 19:40:41,245 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=548, Unknown=0, NotChecked=0, Total=650 [2018-09-11 19:40:41,245 INFO L87 Difference]: Start difference. First operand 87 states and 118 transitions. Second operand 26 states. [2018-09-11 19:40:43,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-11 19:40:43,886 INFO L93 Difference]: Finished difference Result 94 states and 127 transitions. [2018-09-11 19:40:43,886 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-09-11 19:40:43,886 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 138 [2018-09-11 19:40:43,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-11 19:40:43,888 INFO L225 Difference]: With dead ends: 94 [2018-09-11 19:40:43,888 INFO L226 Difference]: Without dead ends: 0 [2018-09-11 19:40:43,890 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 155 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 344 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=384, Invalid=1422, Unknown=0, NotChecked=0, Total=1806 [2018-09-11 19:40:43,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-11 19:40:43,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-11 19:40:43,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-11 19:40:43,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-11 19:40:43,891 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 138 [2018-09-11 19:40:43,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-11 19:40:43,891 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-11 19:40:43,891 INFO L481 AbstractCegarLoop]: Interpolant automaton has 26 states. [2018-09-11 19:40:43,891 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-11 19:40:43,892 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-11 19:40:43,897 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-11 19:40:44,151 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-11 19:40:44,177 WARN L175 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 126 [2018-09-11 19:40:44,487 WARN L175 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 167 [2018-09-11 19:40:44,647 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-11 19:40:44,685 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-11 19:40:44,696 WARN L175 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 159 [2018-09-11 19:40:44,783 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-11 19:40:44,821 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-11 19:40:44,832 WARN L175 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 159 [2018-09-11 19:40:44,926 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-11 19:40:45,652 WARN L175 SmtUtils]: Spent 577.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 24 [2018-09-11 19:40:46,275 WARN L175 SmtUtils]: Spent 621.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 26 [2018-09-11 19:40:46,797 WARN L175 SmtUtils]: Spent 499.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 26 [2018-09-11 19:40:48,872 WARN L175 SmtUtils]: Spent 2.07 s on a formula simplification. DAG size of input: 167 DAG size of output: 57 [2018-09-11 19:40:49,355 WARN L175 SmtUtils]: Spent 394.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 32 [2018-09-11 19:40:50,162 WARN L175 SmtUtils]: Spent 705.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 35 [2018-09-11 19:40:50,277 WARN L175 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 21 [2018-09-11 19:40:51,069 WARN L175 SmtUtils]: Spent 619.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 35 [2018-09-11 19:40:51,324 WARN L175 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 24 [2018-09-11 19:40:51,583 WARN L175 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 24 [2018-09-11 19:40:51,753 WARN L175 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 24 [2018-09-11 19:40:52,295 WARN L175 SmtUtils]: Spent 369.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 32 [2018-09-11 19:40:52,304 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-09-11 19:40:52,304 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-09-11 19:40:52,304 INFO L426 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. [2018-09-11 19:40:52,304 INFO L426 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. [2018-09-11 19:40:52,305 INFO L429 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 [2018-09-11 19:40:52,305 INFO L426 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-09-11 19:40:52,305 INFO L426 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-09-11 19:40:52,305 INFO L426 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2018-09-11 19:40:52,305 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-09-11 19:40:52,305 INFO L429 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-09-11 19:40:52,305 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-09-11 19:40:52,305 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-09-11 19:40:52,305 INFO L426 ceAbstractionStarter]: For program point mainEXIT(lines 10 69) no Hoare annotation was computed. [2018-09-11 19:40:52,305 INFO L426 ceAbstractionStarter]: For program point L19(line 19) no Hoare annotation was computed. [2018-09-11 19:40:52,305 INFO L426 ceAbstractionStarter]: For program point L36(line 36) no Hoare annotation was computed. [2018-09-11 19:40:52,306 INFO L422 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))) [2018-09-11 19:40:52,306 INFO L422 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))) [2018-09-11 19:40:52,306 INFO L422 ceAbstractionStarter]: At program point L53(line 53) the Hoare annotation is: (let ((.cse6 (* 2 main_~scheme~0))) (let ((.cse0 (<= (* 2 main_~urilen~0) 2000000)) (.cse5 (* 2 main_~c~0)) (.cse1 (<= (+ main_~cp~0 2) main_~urilen~0)) (.cse2 (<= .cse6 2000000)) (.cse4 (<= 0 .cse6))) (or (let ((.cse3 (+ main_~c~0 2))) (and .cse0 .cse1 .cse2 (<= .cse3 main_~cp~0) (<= .cse3 main_~tokenlen~0) (<= (* 2 main_~tokenlen~0) 2000000) .cse4 (<= 2 .cse5))) (and (and (<= 0 .cse5) .cse0 (<= .cse5 0)) .cse1 .cse2 .cse4 (<= 2 (+ main_~c~0 main_~cp~0)) (<= main_~tokenlen~0 (+ main_~c~0 1000000)) (<= 2 (+ main_~tokenlen~0 main_~c~0)))))) [2018-09-11 19:40:52,306 INFO L426 ceAbstractionStarter]: For program point L20(line 20) no Hoare annotation was computed. [2018-09-11 19:40:52,307 INFO L422 ceAbstractionStarter]: At program point L53-1(line 53) the Hoare annotation is: (let ((.cse6 (* 2 main_~scheme~0))) (let ((.cse0 (<= (* 2 main_~urilen~0) 2000000)) (.cse5 (* 2 main_~c~0)) (.cse1 (<= (+ main_~cp~0 2) main_~urilen~0)) (.cse2 (<= .cse6 2000000)) (.cse4 (<= 0 .cse6))) (or (let ((.cse3 (+ main_~c~0 2))) (and .cse0 .cse1 .cse2 (<= .cse3 main_~cp~0) (<= .cse3 main_~tokenlen~0) (<= (* 2 main_~tokenlen~0) 2000000) .cse4 (<= 2 .cse5))) (and (and (<= 0 .cse5) .cse0 (<= .cse5 0)) .cse1 .cse2 .cse4 (<= 2 (+ main_~c~0 main_~cp~0)) (<= main_~tokenlen~0 (+ main_~c~0 1000000)) (<= 2 (+ main_~tokenlen~0 main_~c~0)))))) [2018-09-11 19:40:52,307 INFO L426 ceAbstractionStarter]: For program point L29(line 29) no Hoare annotation was computed. [2018-09-11 19:40:52,307 INFO L426 ceAbstractionStarter]: For program point L54(line 54) no Hoare annotation was computed. [2018-09-11 19:40:52,307 INFO L426 ceAbstractionStarter]: For program point L21(line 21) no Hoare annotation was computed. [2018-09-11 19:40:52,307 INFO L426 ceAbstractionStarter]: For program point L21-1(lines 11 69) no Hoare annotation was computed. [2018-09-11 19:40:52,307 INFO L426 ceAbstractionStarter]: For program point mainFINAL(lines 10 69) no Hoare annotation was computed. [2018-09-11 19:40:52,308 INFO L426 ceAbstractionStarter]: For program point L30(lines 30 66) no Hoare annotation was computed. [2018-09-11 19:40:52,308 INFO L429 ceAbstractionStarter]: At program point mainENTRY(lines 10 69) the Hoare annotation is: true [2018-09-11 19:40:52,308 INFO L426 ceAbstractionStarter]: For program point L55(lines 55 61) no Hoare annotation was computed. [2018-09-11 19:40:52,308 INFO L426 ceAbstractionStarter]: For program point L22(lines 11 69) no Hoare annotation was computed. [2018-09-11 19:40:52,308 INFO L426 ceAbstractionStarter]: For program point L55-1(lines 55 61) no Hoare annotation was computed. [2018-09-11 19:40:52,308 INFO L426 ceAbstractionStarter]: For program point L47(lines 47 65) no Hoare annotation was computed. [2018-09-11 19:40:52,308 INFO L422 ceAbstractionStarter]: At program point L39(line 39) the Hoare annotation is: (let ((.cse7 (* 2 main_~scheme~0)) (.cse4 (* 2 main_~tokenlen~0)) (.cse6 (+ main_~cp~0 1))) (let ((.cse3 (<= .cse6 main_~urilen~0)) (.cse2 (* 2 main_~cp~0)) (.cse0 (<= .cse4 2000000)) (.cse1 (<= 0 .cse7)) (.cse5 (<= .cse7 2000000))) (or (and .cse0 .cse1 (and (<= (* 2 main_~urilen~0) 2000000) (<= 2 .cse2) .cse3) (<= 2 .cse4) .cse5) (and (<= main_~urilen~0 .cse6) .cse3 (<= .cse2 1999998) .cse0 .cse1 (<= 0 (+ .cse4 2000000)) (<= 3 (+ main_~urilen~0 main_~cp~0)) .cse5)))) [2018-09-11 19:40:52,309 INFO L422 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))) [2018-09-11 19:40:52,309 INFO L422 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))) [2018-09-11 19:40:52,309 INFO L426 ceAbstractionStarter]: For program point L23(lines 11 69) no Hoare annotation was computed. [2018-09-11 19:40:52,309 INFO L426 ceAbstractionStarter]: For program point L40(lines 30 66) no Hoare annotation was computed. [2018-09-11 19:40:52,309 INFO L422 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)))) [2018-09-11 19:40:52,310 INFO L422 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)))) [2018-09-11 19:40:52,310 INFO L422 ceAbstractionStarter]: At program point L49(line 49) the Hoare annotation is: (let ((.cse0 (* 2 main_~c~0)) (.cse1 (* 2 main_~scheme~0))) (and (<= 0 .cse0) (<= main_~tokenlen~0 (+ main_~c~0 1000000)) (<= 2 (* 2 main_~tokenlen~0)) (<= .cse0 0) (<= .cse1 2000000) (<= 0 .cse1) (<= (+ main_~cp~0 2) main_~urilen~0) (<= 2 (+ main_~c~0 main_~cp~0)) (<= (+ main_~c~0 main_~urilen~0) 1000000))) [2018-09-11 19:40:52,310 INFO L422 ceAbstractionStarter]: At program point L49-1(line 49) the Hoare annotation is: (let ((.cse0 (* 2 main_~c~0)) (.cse1 (* 2 main_~scheme~0))) (and (<= 0 .cse0) (<= main_~tokenlen~0 (+ main_~c~0 1000000)) (<= 2 (* 2 main_~tokenlen~0)) (<= .cse0 0) (<= .cse1 2000000) (<= 0 .cse1) (<= (+ main_~cp~0 2) main_~urilen~0) (<= 2 (+ main_~c~0 main_~cp~0)) (<= (+ main_~c~0 main_~urilen~0) 1000000))) [2018-09-11 19:40:52,310 INFO L426 ceAbstractionStarter]: For program point L33(lines 33 38) no Hoare annotation was computed. [2018-09-11 19:40:52,310 INFO L422 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))) [2018-09-11 19:40:52,310 INFO L422 ceAbstractionStarter]: At program point L33-3(lines 33 38) the Hoare annotation is: (let ((.cse7 (* 2 main_~scheme~0)) (.cse4 (* 2 main_~tokenlen~0)) (.cse6 (+ main_~cp~0 1))) (let ((.cse3 (<= .cse6 main_~urilen~0)) (.cse2 (* 2 main_~cp~0)) (.cse0 (<= .cse4 2000000)) (.cse1 (<= 0 .cse7)) (.cse5 (<= .cse7 2000000))) (or (and .cse0 .cse1 (and (<= (* 2 main_~urilen~0) 2000000) (<= 2 .cse2) .cse3) (<= 2 .cse4) .cse5) (and (<= main_~urilen~0 .cse6) .cse3 (<= .cse2 1999998) .cse0 .cse1 (<= 0 (+ .cse4 2000000)) (<= 3 (+ main_~urilen~0 main_~cp~0)) .cse5)))) [2018-09-11 19:40:52,311 INFO L422 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)))) [2018-09-11 19:40:52,311 INFO L422 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))) [2018-09-11 19:40:52,311 INFO L422 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))) [2018-09-11 19:40:52,311 INFO L429 ceAbstractionStarter]: At program point L67(lines 11 69) the Hoare annotation is: true [2018-09-11 19:40:52,311 INFO L426 ceAbstractionStarter]: For program point L34(line 34) no Hoare annotation was computed. [2018-09-11 19:40:52,311 INFO L422 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)))) [2018-09-11 19:40:52,311 INFO L426 ceAbstractionStarter]: For program point L51(lines 51 63) no Hoare annotation was computed. [2018-09-11 19:40:52,311 INFO L426 ceAbstractionStarter]: For program point L18(line 18) no Hoare annotation was computed. [2018-09-11 19:40:52,312 INFO L422 ceAbstractionStarter]: At program point L51-2(lines 50 63) the Hoare annotation is: (let ((.cse0 (* 2 main_~cp~0)) (.cse9 (* 2 main_~scheme~0))) (let ((.cse4 (<= (* 2 main_~tokenlen~0) 2000000)) (.cse5 (<= 0 .cse9)) (.cse8 (* 2 main_~c~0)) (.cse3 (and (<= 1 (+ main_~scheme~0 main_~urilen~0)) (<= main_~tokenlen~0 (+ main_~urilen~0 999999)) (<= (* 2 main_~urilen~0) 2000000) (<= 2 .cse0) (<= (+ main_~tokenlen~0 main_~urilen~0) 2000000) (<= main_~scheme~0 (+ main_~tokenlen~0 2000000)) (<= main_~urilen~0 (+ main_~scheme~0 1000000)) (<= (+ main_~cp~0 1) main_~urilen~0))) (.cse1 (<= .cse9 2000000))) (or (and (<= 4 .cse0) .cse1 (let ((.cse2 (<= 0 .cse8)) (.cse6 (<= .cse8 0)) (.cse7 (+ main_~tokenlen~0 main_~c~0))) (or (and .cse2 (<= (+ main_~cp~0 2) main_~urilen~0) .cse3 .cse4 .cse5 .cse6 (<= 1 .cse7)) (and .cse2 .cse3 .cse4 .cse5 .cse6 (<= 2 .cse7)))) (<= (+ main_~c~0 4) main_~urilen~0)) (and (<= (+ main_~c~0 2) main_~cp~0) (<= (+ main_~c~0 1) main_~tokenlen~0) .cse4 .cse5 (<= 2 .cse8) (and .cse3 .cse1))))) [2018-09-11 19:40:52,312 INFO L426 ceAbstractionStarter]: For program point L43(lines 30 66) no Hoare annotation was computed. [2018-09-11 19:40:52,312 INFO L422 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))) [2018-09-11 19:40:52,312 INFO L422 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))) [2018-09-11 19:40:52,326 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.09 07:40:52 BoogieIcfgContainer [2018-09-11 19:40:52,326 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-11 19:40:52,327 INFO L168 Benchmark]: Toolchain (without parser) took 27723.27 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 2.0 GB in the end (delta: -551.6 MB). Peak memory consumption was 880.2 MB. Max. memory is 7.1 GB. [2018-09-11 19:40:52,329 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-11 19:40:52,329 INFO L168 Benchmark]: CACSL2BoogieTranslator took 401.25 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-09-11 19:40:52,330 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.95 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-11 19:40:52,331 INFO L168 Benchmark]: Boogie Preprocessor took 42.15 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-11 19:40:52,331 INFO L168 Benchmark]: RCFGBuilder took 778.91 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 750.8 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -798.4 MB). Peak memory consumption was 26.5 MB. Max. memory is 7.1 GB. [2018-09-11 19:40:52,332 INFO L168 Benchmark]: TraceAbstraction took 26452.64 ms. Allocated memory was 2.3 GB in the beginning and 2.6 GB in the end (delta: 345.0 MB). Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 236.2 MB). Peak memory consumption was 917.3 MB. Max. memory is 7.1 GB. [2018-09-11 19:40:52,337 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 401.25 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 37.95 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 42.15 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 778.91 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 750.8 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -798.4 MB). Peak memory consumption was 26.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 26452.64 ms. Allocated memory was 2.3 GB in the beginning and 2.6 GB in the end (delta: 345.0 MB). Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 236.2 MB). Peak memory consumption was 917.3 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: (((4 <= 2 * cp && 2 * scheme <= 2000000) && (((((((0 <= 2 * c && cp + 2 <= urilen) && ((((((1 <= scheme + urilen && tokenlen <= urilen + 999999) && 2 * urilen <= 2000000) && 2 <= 2 * cp) && tokenlen + urilen <= 2000000) && scheme <= tokenlen + 2000000) && urilen <= scheme + 1000000) && cp + 1 <= urilen) && 2 * tokenlen <= 2000000) && 0 <= 2 * scheme) && 2 * c <= 0) && 1 <= tokenlen + c) || (((((0 <= 2 * c && ((((((1 <= scheme + urilen && tokenlen <= urilen + 999999) && 2 * urilen <= 2000000) && 2 <= 2 * cp) && tokenlen + urilen <= 2000000) && scheme <= tokenlen + 2000000) && urilen <= scheme + 1000000) && cp + 1 <= urilen) && 2 * tokenlen <= 2000000) && 0 <= 2 * scheme) && 2 * c <= 0) && 2 <= tokenlen + c))) && c + 4 <= urilen) || (((((c + 2 <= cp && c + 1 <= tokenlen) && 2 * tokenlen <= 2000000) && 0 <= 2 * scheme) && 2 <= 2 * c) && (((((((1 <= scheme + urilen && tokenlen <= urilen + 999999) && 2 * urilen <= 2000000) && 2 <= 2 * cp) && tokenlen + urilen <= 2000000) && scheme <= tokenlen + 2000000) && urilen <= scheme + 1000000) && cp + 1 <= urilen) && 2 * scheme <= 2000000) - 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, 26.3s OverallTime, 6 OverallIterations, 21 TraceHistogramMax, 12.4s AutomataDifference, 0.0s DeadEndRemovalTime, 8.4s 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, 6.1s 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, 0.6s AbstIntTime, 6 AbstIntIterations, 6 AbstIntStrong, 0.9128135092420809 AbsIntWeakeningRatio, 0.4090909090909091 AbsIntAvgWeakeningVarsNumRemoved, 8.528138528138529 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 69 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 26 LocationsWithAnnotation, 94 PreInvPairs, 143 NumberOfFragments, 1156 HoareAnnotationTreeSize, 94 FomulaSimplifications, 18575 FormulaSimplificationTreeSizeReduction, 1.1s HoareSimplificationTime, 26 FomulaSimplificationsInter, 17170 FormulaSimplificationTreeSizeReductionInter, 7.2s 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_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-11_19-40-52-354.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_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-11_19-40-52-354.csv Received shutdown request...