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-RubberTaipan_Default-OldIcfg.epf -i ../../../trunk/examples/svcomp/loop-invgen/id_build_true-unreach-call_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-3142e50-m [2018-09-10 10:14:01,098 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-10 10:14:01,100 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-10 10:14:01,119 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-10 10:14:01,119 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-10 10:14:01,121 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-10 10:14:01,122 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-10 10:14:01,125 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-10 10:14:01,127 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-10 10:14:01,128 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-10 10:14:01,132 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-10 10:14:01,133 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-10 10:14:01,137 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-10 10:14:01,138 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-10 10:14:01,140 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-10 10:14:01,141 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-10 10:14:01,142 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-10 10:14:01,144 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-10 10:14:01,146 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-10 10:14:01,147 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-10 10:14:01,148 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-10 10:14:01,149 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-10 10:14:01,152 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-10 10:14:01,152 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-10 10:14:01,152 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-10 10:14:01,153 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-10 10:14:01,154 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-10 10:14:01,155 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-10 10:14:01,156 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-10 10:14:01,157 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-10 10:14:01,157 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-10 10:14:01,158 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-09-10 10:14:01,160 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf [2018-09-10 10:14:01,175 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-10 10:14:01,175 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-10 10:14:01,176 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-10 10:14:01,177 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-10 10:14:01,177 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-10 10:14:01,177 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-10 10:14:01,177 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-10 10:14:01,177 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-10 10:14:01,178 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-10 10:14:01,178 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-10 10:14:01,178 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-10 10:14:01,179 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-10 10:14:01,179 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-10 10:14:01,179 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-10 10:14:01,179 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-10 10:14:01,180 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-10 10:14:01,180 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-10 10:14:01,180 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-10 10:14:01,180 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-10 10:14:01,180 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-10 10:14:01,180 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-10 10:14:01,181 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-10 10:14:01,181 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-10 10:14:01,181 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-10 10:14:01,181 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-10 10:14:01,181 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-10 10:14:01,182 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-10 10:14:01,182 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-09-10 10:14:01,182 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-10 10:14:01,182 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-10 10:14:01,182 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-10 10:14:01,183 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-10 10:14:01,183 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-10 10:14:01,247 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-10 10:14:01,261 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-10 10:14:01,264 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-10 10:14:01,266 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-10 10:14:01,266 INFO L276 PluginConnector]: CDTParser initialized [2018-09-10 10:14:01,267 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/id_build_true-unreach-call_true-termination.i [2018-09-10 10:14:01,622 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a5704486/0140c483d0d748a3962833119a990ae8/FLAG4c8dfacc7 [2018-09-10 10:14:01,758 INFO L276 CDTParser]: Found 1 translation units. [2018-09-10 10:14:01,759 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/id_build_true-unreach-call_true-termination.i [2018-09-10 10:14:01,764 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a5704486/0140c483d0d748a3962833119a990ae8/FLAG4c8dfacc7 [2018-09-10 10:14:01,786 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a5704486/0140c483d0d748a3962833119a990ae8 [2018-09-10 10:14:01,798 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-10 10:14:01,804 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-10 10:14:01,805 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-10 10:14:01,805 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-10 10:14:01,817 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-10 10:14:01,818 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 10:14:01" (1/1) ... [2018-09-10 10:14:01,821 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d56e01f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 10:14:01, skipping insertion in model container [2018-09-10 10:14:01,822 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 10:14:01" (1/1) ... [2018-09-10 10:14:02,009 INFO L180 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-09-10 10:14:02,063 INFO L175 PostProcessor]: Settings: Checked method=main [2018-09-10 10:14:02,086 INFO L431 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-10 10:14:02,093 INFO L175 PostProcessor]: Settings: Checked method=main [2018-09-10 10:14:02,107 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 10:14:02 WrapperNode [2018-09-10 10:14:02,107 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-10 10:14:02,108 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-10 10:14:02,108 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-10 10:14:02,109 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-10 10:14:02,118 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 10:14:02" (1/1) ... [2018-09-10 10:14:02,125 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 10:14:02" (1/1) ... [2018-09-10 10:14:02,131 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-10 10:14:02,132 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-10 10:14:02,132 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-10 10:14:02,132 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-10 10:14:02,142 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 10:14:02" (1/1) ... [2018-09-10 10:14:02,143 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 10:14:02" (1/1) ... [2018-09-10 10:14:02,143 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 10:14:02" (1/1) ... [2018-09-10 10:14:02,144 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 10:14:02" (1/1) ... [2018-09-10 10:14:02,146 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 10:14:02" (1/1) ... [2018-09-10 10:14:02,151 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 10:14:02" (1/1) ... [2018-09-10 10:14:02,152 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 10:14:02" (1/1) ... [2018-09-10 10:14:02,154 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-10 10:14:02,154 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-10 10:14:02,155 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-10 10:14:02,155 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-10 10:14:02,156 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 10:14:02" (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 [2018-09-10 10:14:02,230 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-10 10:14:02,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-10 10:14:02,231 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-10 10:14:02,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-10 10:14:02,231 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-10 10:14:02,231 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-10 10:14:02,232 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_invgen_id_build_true_unreach_call_true_termination_i____VERIFIER_assert [2018-09-10 10:14:02,232 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_invgen_id_build_true_unreach_call_true_termination_i____VERIFIER_assert [2018-09-10 10:14:02,550 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-10 10:14:02,551 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 10:14:02 BoogieIcfgContainer [2018-09-10 10:14:02,551 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-10 10:14:02,552 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-10 10:14:02,552 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-10 10:14:02,556 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-10 10:14:02,556 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 10:14:01" (1/3) ... [2018-09-10 10:14:02,557 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21580b28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 10:14:02, skipping insertion in model container [2018-09-10 10:14:02,557 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 10:14:02" (2/3) ... [2018-09-10 10:14:02,557 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21580b28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 10:14:02, skipping insertion in model container [2018-09-10 10:14:02,558 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 10:14:02" (3/3) ... [2018-09-10 10:14:02,559 INFO L112 eAbstractionObserver]: Analyzing ICFG id_build_true-unreach-call_true-termination.i [2018-09-10 10:14:02,573 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-10 10:14:02,581 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-10 10:14:02,639 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-10 10:14:02,640 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-10 10:14:02,640 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-10 10:14:02,640 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-10 10:14:02,640 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-10 10:14:02,640 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-10 10:14:02,641 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-10 10:14:02,641 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-10 10:14:02,641 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-10 10:14:02,661 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2018-09-10 10:14:02,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-09-10 10:14:02,673 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 10:14:02,674 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 10:14:02,676 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_invgen_id_build_true_unreach_call_true_termination_i____VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 10:14:02,680 INFO L82 PathProgramCache]: Analyzing trace with hash -1225232818, now seen corresponding path program 1 times [2018-09-10 10:14:02,683 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 10:14:02,733 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:14:02,733 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:14:02,733 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:14:02,733 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 10:14:02,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:14:03,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 10:14:03,036 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-10 10:14:03,036 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-09-10 10:14:03,036 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 10:14:03,040 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-10 10:14:03,052 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-10 10:14:03,052 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-09-10 10:14:03,055 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 5 states. [2018-09-10 10:14:03,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 10:14:03,240 INFO L93 Difference]: Finished difference Result 47 states and 59 transitions. [2018-09-10 10:14:03,240 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-09-10 10:14:03,242 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2018-09-10 10:14:03,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 10:14:03,253 INFO L225 Difference]: With dead ends: 47 [2018-09-10 10:14:03,253 INFO L226 Difference]: Without dead ends: 23 [2018-09-10 10:14:03,257 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-09-10 10:14:03,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2018-09-10 10:14:03,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2018-09-10 10:14:03,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2018-09-10 10:14:03,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2018-09-10 10:14:03,297 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 13 [2018-09-10 10:14:03,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 10:14:03,298 INFO L480 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2018-09-10 10:14:03,298 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-10 10:14:03,298 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2018-09-10 10:14:03,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-09-10 10:14:03,299 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 10:14:03,299 INFO L376 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 10:14:03,301 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_invgen_id_build_true_unreach_call_true_termination_i____VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 10:14:03,301 INFO L82 PathProgramCache]: Analyzing trace with hash 842211255, now seen corresponding path program 1 times [2018-09-10 10:14:03,301 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 10:14:03,303 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:14:03,304 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:14:03,304 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:14:03,304 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 10:14:03,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:14:03,500 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 10:14:03,501 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 10:14:03,501 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-10 10:14:03,516 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:14:03,516 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 10:14:03,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:14:03,554 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 10:14:03,847 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 10:14:03,847 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 10:14:03,931 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 10:14:03,963 INFO L313 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-09-10 10:14:03,963 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [7] total 9 [2018-09-10 10:14:03,964 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 10:14:03,965 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-10 10:14:03,966 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-10 10:14:03,966 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2018-09-10 10:14:03,967 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand 5 states. [2018-09-10 10:14:04,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 10:14:04,073 INFO L93 Difference]: Finished difference Result 23 states and 24 transitions. [2018-09-10 10:14:04,074 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-09-10 10:14:04,074 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2018-09-10 10:14:04,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 10:14:04,075 INFO L225 Difference]: With dead ends: 23 [2018-09-10 10:14:04,075 INFO L226 Difference]: Without dead ends: 0 [2018-09-10 10:14:04,078 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 34 SyntacticMatches, 3 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-10 10:14:04,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-10 10:14:04,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-10 10:14:04,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-10 10:14:04,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-10 10:14:04,079 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2018-09-10 10:14:04,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 10:14:04,079 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-10 10:14:04,079 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-10 10:14:04,080 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-10 10:14:04,080 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-10 10:14:04,085 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-10 10:14:04,156 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-09-10 10:14:04,156 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-09-10 10:14:04,157 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-09-10 10:14:04,157 INFO L429 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-09-10 10:14:04,157 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-09-10 10:14:04,157 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-09-10 10:14:04,157 INFO L426 ceAbstractionStarter]: For program point mainEXIT(lines 10 20) no Hoare annotation was computed. [2018-09-10 10:14:04,158 INFO L422 ceAbstractionStarter]: At program point L15(line 15) the Hoare annotation is: (and (<= 0 main_~i~0) (<= (+ main_~i~0 1) main_~nlen~0)) [2018-09-10 10:14:04,158 INFO L422 ceAbstractionStarter]: At program point L15-1(line 15) the Hoare annotation is: (and (<= 0 main_~i~0) (<= (+ main_~i~0 1) main_~nlen~0)) [2018-09-10 10:14:04,158 INFO L426 ceAbstractionStarter]: For program point mainFINAL(lines 10 20) no Hoare annotation was computed. [2018-09-10 10:14:04,158 INFO L426 ceAbstractionStarter]: For program point L13-1(lines 13 18) no Hoare annotation was computed. [2018-09-10 10:14:04,159 INFO L426 ceAbstractionStarter]: For program point L13-3(lines 13 18) no Hoare annotation was computed. [2018-09-10 10:14:04,159 INFO L422 ceAbstractionStarter]: At program point L13-4(lines 13 18) the Hoare annotation is: (<= 0 main_~i~0) [2018-09-10 10:14:04,160 INFO L426 ceAbstractionStarter]: For program point L13-5(lines 13 18) no Hoare annotation was computed. [2018-09-10 10:14:04,160 INFO L429 ceAbstractionStarter]: At program point mainENTRY(lines 10 20) the Hoare annotation is: true [2018-09-10 10:14:04,160 INFO L426 ceAbstractionStarter]: For program point L16(lines 14 17) no Hoare annotation was computed. [2018-09-10 10:14:04,160 INFO L426 ceAbstractionStarter]: For program point L14-1(lines 14 17) no Hoare annotation was computed. [2018-09-10 10:14:04,160 INFO L422 ceAbstractionStarter]: At program point L14-3(lines 14 17) the Hoare annotation is: (and (<= 0 main_~i~0) (<= (+ main_~i~0 1) main_~nlen~0)) [2018-09-10 10:14:04,161 INFO L426 ceAbstractionStarter]: For program point __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_invgen_id_build_true_unreach_call_true_termination_i____VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-09-10 10:14:04,161 INFO L429 ceAbstractionStarter]: At program point __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_invgen_id_build_true_unreach_call_true_termination_i____VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2018-09-10 10:14:04,161 INFO L426 ceAbstractionStarter]: For program point __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_invgen_id_build_true_unreach_call_true_termination_i____VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2018-09-10 10:14:04,161 INFO L426 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-09-10 10:14:04,161 INFO L426 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-09-10 10:14:04,162 INFO L426 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2018-09-10 10:14:04,173 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 10:14:04 BoogieIcfgContainer [2018-09-10 10:14:04,174 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-10 10:14:04,175 INFO L168 Benchmark]: Toolchain (without parser) took 2376.28 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 735.1 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -695.8 MB). Peak memory consumption was 39.2 MB. Max. memory is 7.1 GB. [2018-09-10 10:14:04,177 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-10 10:14:04,177 INFO L168 Benchmark]: CACSL2BoogieTranslator took 302.48 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. [2018-09-10 10:14:04,178 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.42 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. [2018-09-10 10:14:04,179 INFO L168 Benchmark]: Boogie Preprocessor took 22.25 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. [2018-09-10 10:14:04,179 INFO L168 Benchmark]: RCFGBuilder took 397.08 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 735.1 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -777.1 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. [2018-09-10 10:14:04,180 INFO L168 Benchmark]: TraceAbstraction took 1621.49 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 70.7 MB). Peak memory consumption was 70.7 MB. Max. memory is 7.1 GB. [2018-09-10 10:14:04,186 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 302.48 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 23.42 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 22.25 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 397.08 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 735.1 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -777.1 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1621.49 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 70.7 MB). Peak memory consumption was 70.7 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: 14]: Loop Invariant Derived loop invariant: 0 <= i && i + 1 <= nlen - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: 0 <= i - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 24 locations, 1 error locations. SAFE Result, 1.5s OverallTime, 2 OverallIterations, 2 TraceHistogramMax, 0.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 39 SDtfs, 14 SDslu, 93 SDs, 0 SdLazy, 35 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 51 GetRequests, 36 SyntacticMatches, 3 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 12 PreInvPairs, 16 NumberOfFragments, 35 HoareAnnotationTreeSize, 12 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 63 ConstructedInterpolants, 0 QuantifiedInterpolants, 2529 SizeOfPredicates, 2 NumberOfNonLiveVariables, 40 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 5/6 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/id_build_true-unreach-call_true-termination.i_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-10_10-14-04-200.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/id_build_true-unreach-call_true-termination.i_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-10_10-14-04-200.csv Received shutdown request...