java -Xmx8000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --generate-csv --csv-dir csv -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-old.epf -i ../../../trunk/examples/svcomp/loop-invgen/id_trans_false-unreach-call_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dd2f093 [2018-07-23 18:15:49,828 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-23 18:15:49,830 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-23 18:15:49,842 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-23 18:15:49,842 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-23 18:15:49,843 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-23 18:15:49,844 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-23 18:15:49,846 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-23 18:15:49,848 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-23 18:15:49,848 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-23 18:15:49,849 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-23 18:15:49,850 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-23 18:15:49,851 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-23 18:15:49,851 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-23 18:15:49,853 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-23 18:15:49,853 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-23 18:15:49,854 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-23 18:15:49,856 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-23 18:15:49,858 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-23 18:15:49,860 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-23 18:15:49,861 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-23 18:15:49,862 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-23 18:15:49,864 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-07-23 18:15:49,873 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-old.epf [2018-07-23 18:15:49,888 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-23 18:15:49,889 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-23 18:15:49,889 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-23 18:15:49,890 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-23 18:15:49,890 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-23 18:15:49,890 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-23 18:15:49,890 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-23 18:15:49,890 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-23 18:15:49,891 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-23 18:15:49,891 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-23 18:15:49,891 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-23 18:15:49,892 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-23 18:15:49,892 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-23 18:15:49,892 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-23 18:15:49,892 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-23 18:15:49,892 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-23 18:15:49,893 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-23 18:15:49,893 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-23 18:15:49,893 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-23 18:15:49,893 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-23 18:15:49,894 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-23 18:15:49,894 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-23 18:15:49,894 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-23 18:15:49,894 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-23 18:15:49,894 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-23 18:15:49,895 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-23 18:15:49,895 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-23 18:15:49,895 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-07-23 18:15:49,895 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-23 18:15:49,895 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-23 18:15:49,895 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-23 18:15:49,896 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-23 18:15:49,896 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-23 18:15:49,938 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-23 18:15:49,950 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-23 18:15:49,954 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-23 18:15:49,956 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-23 18:15:49,956 INFO L276 PluginConnector]: CDTParser initialized [2018-07-23 18:15:49,957 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/id_trans_false-unreach-call_true-termination.i [2018-07-23 18:15:50,316 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d07e86868/bc808296c7e642a898bf190947bc8c3c/FLAG61ad71d50 [2018-07-23 18:15:50,486 INFO L276 CDTParser]: Found 1 translation units. [2018-07-23 18:15:50,487 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/id_trans_false-unreach-call_true-termination.i [2018-07-23 18:15:50,494 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d07e86868/bc808296c7e642a898bf190947bc8c3c/FLAG61ad71d50 [2018-07-23 18:15:50,518 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d07e86868/bc808296c7e642a898bf190947bc8c3c [2018-07-23 18:15:50,530 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-23 18:15:50,532 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-23 18:15:50,533 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-23 18:15:50,533 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-23 18:15:50,542 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-23 18:15:50,544 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 06:15:50" (1/1) ... [2018-07-23 18:15:50,547 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5445a65a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 06:15:50, skipping insertion in model container [2018-07-23 18:15:50,547 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 06:15:50" (1/1) ... [2018-07-23 18:15:50,706 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-23 18:15:50,751 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-23 18:15:50,772 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-23 18:15:50,787 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-23 18:15:50,801 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 06:15:50 WrapperNode [2018-07-23 18:15:50,801 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-23 18:15:50,802 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-23 18:15:50,802 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-23 18:15:50,803 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-23 18:15:50,812 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 06:15:50" (1/1) ... [2018-07-23 18:15:50,819 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 06:15:50" (1/1) ... [2018-07-23 18:15:50,825 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-23 18:15:50,826 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-23 18:15:50,826 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-23 18:15:50,826 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-23 18:15:50,836 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 06:15:50" (1/1) ... [2018-07-23 18:15:50,837 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 06:15:50" (1/1) ... [2018-07-23 18:15:50,838 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 06:15:50" (1/1) ... [2018-07-23 18:15:50,838 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 06:15:50" (1/1) ... [2018-07-23 18:15:50,840 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 06:15:50" (1/1) ... [2018-07-23 18:15:50,845 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 06:15:50" (1/1) ... [2018-07-23 18:15:50,846 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 06:15:50" (1/1) ... [2018-07-23 18:15:50,848 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-23 18:15:50,849 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-23 18:15:50,849 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-23 18:15:50,849 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-23 18:15:50,850 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 06:15:50" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-23 18:15:50,920 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-23 18:15:50,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-23 18:15:50,920 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_invgen_id_trans_false_unreach_call_true_termination_i____VERIFIER_assert [2018-07-23 18:15:50,921 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_invgen_id_trans_false_unreach_call_true_termination_i____VERIFIER_assert [2018-07-23 18:15:50,921 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-23 18:15:50,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-23 18:15:50,921 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-23 18:15:50,922 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-23 18:15:51,258 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-23 18:15:51,259 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 06:15:51 BoogieIcfgContainer [2018-07-23 18:15:51,260 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-23 18:15:51,260 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-23 18:15:51,261 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-23 18:15:51,264 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-23 18:15:51,264 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.07 06:15:50" (1/3) ... [2018-07-23 18:15:51,265 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b8c7e26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 06:15:51, skipping insertion in model container [2018-07-23 18:15:51,265 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 06:15:50" (2/3) ... [2018-07-23 18:15:51,265 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b8c7e26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 06:15:51, skipping insertion in model container [2018-07-23 18:15:51,266 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 06:15:51" (3/3) ... [2018-07-23 18:15:51,267 INFO L112 eAbstractionObserver]: Analyzing ICFG id_trans_false-unreach-call_true-termination.i [2018-07-23 18:15:51,277 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-23 18:15:51,285 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-23 18:15:51,335 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-23 18:15:51,335 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-23 18:15:51,336 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-23 18:15:51,336 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-23 18:15:51,336 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-23 18:15:51,336 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-23 18:15:51,336 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-23 18:15:51,336 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-23 18:15:51,337 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-23 18:15:51,355 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2018-07-23 18:15:51,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-07-23 18:15:51,362 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 18:15:51,363 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 18:15:51,363 INFO L414 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_invgen_id_trans_false_unreach_call_true_termination_i____VERIFIER_assertErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 18:15:51,369 INFO L82 PathProgramCache]: Analyzing trace with hash -1050131110, now seen corresponding path program 1 times [2018-07-23 18:15:51,372 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 18:15:51,428 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 18:15:51,428 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 18:15:51,428 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 18:15:51,428 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 18:15:51,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 18:15:51,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 18:15:51,709 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 18:15:51,709 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-23 18:15:51,709 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 18:15:51,714 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-23 18:15:51,725 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-23 18:15:51,726 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-07-23 18:15:51,728 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 5 states. [2018-07-23 18:15:51,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 18:15:51,955 INFO L93 Difference]: Finished difference Result 48 states and 63 transitions. [2018-07-23 18:15:51,956 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-07-23 18:15:51,958 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2018-07-23 18:15:51,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 18:15:51,968 INFO L225 Difference]: With dead ends: 48 [2018-07-23 18:15:51,968 INFO L226 Difference]: Without dead ends: 23 [2018-07-23 18:15:51,972 INFO L573 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 [2018-07-23 18:15:51,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2018-07-23 18:15:52,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2018-07-23 18:15:52,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2018-07-23 18:15:52,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 25 transitions. [2018-07-23 18:15:52,020 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 25 transitions. Word has length 12 [2018-07-23 18:15:52,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 18:15:52,021 INFO L471 AbstractCegarLoop]: Abstraction has 23 states and 25 transitions. [2018-07-23 18:15:52,021 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-23 18:15:52,021 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 25 transitions. [2018-07-23 18:15:52,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-07-23 18:15:52,023 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 18:15:52,024 INFO L353 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 18:15:52,024 INFO L414 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_invgen_id_trans_false_unreach_call_true_termination_i____VERIFIER_assertErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 18:15:52,025 INFO L82 PathProgramCache]: Analyzing trace with hash 1260746056, now seen corresponding path program 1 times [2018-07-23 18:15:52,025 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 18:15:52,026 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 18:15:52,026 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 18:15:52,027 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 18:15:52,027 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 18:15:52,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 18:15:52,270 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 18:15:52,270 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 18:15:52,271 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-23 18:15:52,271 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 18 with the following transitions: [2018-07-23 18:15:52,273 INFO L201 CegarAbsIntRunner]: [0], [1], [4], [6], [9], [11], [15], [19], [23], [28], [40], [41], [42], [44], [45], [46] [2018-07-23 18:15:52,324 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-23 18:15:52,324 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-23 18:15:52,436 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-07-23 18:15:52,492 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-07-23 18:15:52,494 INFO L272 AbstractInterpreter]: Visited 15 different actions 19 times. Never merged. Never widened. Never found a fixpoint. Largest state had 8 variables. [2018-07-23 18:15:52,517 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-07-23 18:15:52,614 INFO L232 lantSequenceWeakener]: Weakened 8 states. On average, predicates are now at 56.25% of their original sizes. [2018-07-23 18:15:52,615 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-07-23 18:15:52,953 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-07-23 18:15:52,956 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-23 18:15:52,956 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [8] total 13 [2018-07-23 18:15:52,956 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 18:15:52,958 INFO L450 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-23 18:15:52,958 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-23 18:15:52,959 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-07-23 18:15:52,960 INFO L87 Difference]: Start difference. First operand 23 states and 25 transitions. Second operand 7 states. [2018-07-23 18:15:53,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 18:15:53,932 INFO L93 Difference]: Finished difference Result 40 states and 44 transitions. [2018-07-23 18:15:53,932 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-23 18:15:53,932 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 17 [2018-07-23 18:15:53,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 18:15:53,934 INFO L225 Difference]: With dead ends: 40 [2018-07-23 18:15:53,934 INFO L226 Difference]: Without dead ends: 38 [2018-07-23 18:15:53,941 INFO L573 BasicCegarLoop]: 2 DeclaredPredicates, 20 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-07-23 18:15:53,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2018-07-23 18:15:53,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 36. [2018-07-23 18:15:53,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-07-23 18:15:53,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 39 transitions. [2018-07-23 18:15:53,966 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 39 transitions. Word has length 17 [2018-07-23 18:15:53,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 18:15:53,967 INFO L471 AbstractCegarLoop]: Abstraction has 36 states and 39 transitions. [2018-07-23 18:15:53,967 INFO L472 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-23 18:15:53,967 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 39 transitions. [2018-07-23 18:15:53,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-07-23 18:15:53,969 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 18:15:53,969 INFO L353 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 18:15:53,970 INFO L414 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_invgen_id_trans_false_unreach_call_true_termination_i____VERIFIER_assertErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 18:15:53,970 INFO L82 PathProgramCache]: Analyzing trace with hash -709781432, now seen corresponding path program 1 times [2018-07-23 18:15:53,970 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 18:15:53,974 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 18:15:53,974 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 18:15:53,974 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 18:15:53,974 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 18:15:54,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-07-23 18:15:54,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-07-23 18:15:54,065 INFO L419 BasicCegarLoop]: Counterexample might be feasible [2018-07-23 18:15:54,094 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.07 06:15:54 BoogieIcfgContainer [2018-07-23 18:15:54,094 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-23 18:15:54,095 INFO L168 Benchmark]: Toolchain (without parser) took 3564.45 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 725.6 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -655.8 MB). Peak memory consumption was 69.8 MB. Max. memory is 7.1 GB. [2018-07-23 18:15:54,098 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-23 18:15:54,099 INFO L168 Benchmark]: CACSL2BoogieTranslator took 268.37 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-07-23 18:15:54,099 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-23 18:15:54,100 INFO L168 Benchmark]: Boogie Preprocessor took 22.64 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-23 18:15:54,101 INFO L168 Benchmark]: RCFGBuilder took 411.08 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 725.6 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -773.5 MB). Peak memory consumption was 27.2 MB. Max. memory is 7.1 GB. [2018-07-23 18:15:54,102 INFO L168 Benchmark]: TraceAbstraction took 2833.86 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 107.1 MB). Peak memory consumption was 107.1 MB. Max. memory is 7.1 GB. [2018-07-23 18:15:54,106 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 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 268.37 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 23.22 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 22.64 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 411.08 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 725.6 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -773.5 MB). Peak memory consumption was 27.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2833.86 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 107.1 MB). Peak memory consumption was 107.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 5]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L11] int idBitLength, material_length, nlen; [L12] int j, k; [L13] nlen = __VERIFIER_nondet_int() [L14] idBitLength = __VERIFIER_nondet_int() [L15] material_length = __VERIFIER_nondet_int() [L16] COND FALSE !(!( nlen == idBitLength / 32 )) [L17] j = 0 VAL [idBitLength=9, j=0, material_length=1, nlen=0] [L17] COND TRUE (j < idBitLength / 8) && (j < material_length) VAL [idBitLength=9, j=0, material_length=1, nlen=0] [L18] CALL __VERIFIER_assert( 0 <= j) VAL [\old(cond)=1] [L4] COND FALSE, RET !(!(cond)) VAL [\old(cond)=1, cond=1] [L18] __VERIFIER_assert( 0 <= j) VAL [idBitLength=9, j=0, material_length=1, nlen=0] [L19] CALL __VERIFIER_assert( j < material_length ) VAL [\old(cond)=1] [L4] COND FALSE, RET !(!(cond)) VAL [\old(cond)=1, cond=1] [L19] __VERIFIER_assert( j < material_length ) VAL [idBitLength=9, j=0, material_length=1, nlen=0] [L20] CALL __VERIFIER_assert( 0 <= j/4 ) VAL [\old(cond)=1] [L4] COND FALSE, RET !(!(cond)) VAL [\old(cond)=1, cond=1] [L20] __VERIFIER_assert( 0 <= j/4 ) VAL [idBitLength=9, j=0, material_length=1, nlen=0] [L21] CALL __VERIFIER_assert( j/4 < nlen) VAL [\old(cond)=0] [L4] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L5] __VERIFIER_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 24 locations, 1 error locations. UNSAFE Result, 2.7s OverallTime, 3 OverallIterations, 4 TraceHistogramMax, 1.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 41 SDtfs, 20 SDslu, 125 SDs, 0 SdLazy, 31 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 26 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=36occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.2s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9140625 AbsIntWeakeningRatio, 0.625 AbsIntAvgWeakeningVarsNumRemoved, 6.5 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 56 NumberOfCodeBlocks, 56 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 27 ConstructedInterpolants, 0 QuantifiedInterpolants, 903 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 1/2 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/id_trans_false-unreach-call_true-termination.i_svcomp-Reach-64bit-Taipan_Default-old.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-23_18-15-54-121.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/id_trans_false-unreach-call_true-termination.i_svcomp-Reach-64bit-Taipan_Default-old.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-23_18-15-54-121.csv Received shutdown request...