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-lit/cggmp2005_variant_true-unreach-call_true-termination.c.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-3142e50-m [2018-09-10 10:14:57,932 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-10 10:14:57,934 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-10 10:14:57,947 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-10 10:14:57,947 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-10 10:14:57,949 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-10 10:14:57,950 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-10 10:14:57,952 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-10 10:14:57,955 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-10 10:14:57,961 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-10 10:14:57,962 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-10 10:14:57,962 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-10 10:14:57,963 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-10 10:14:57,964 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-10 10:14:57,967 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-10 10:14:57,968 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-10 10:14:57,969 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-10 10:14:57,972 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-10 10:14:57,978 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-10 10:14:57,979 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-10 10:14:57,981 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-10 10:14:57,982 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-10 10:14:57,984 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-10 10:14:57,984 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-10 10:14:57,984 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-10 10:14:57,985 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-10 10:14:57,986 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-10 10:14:57,987 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-10 10:14:57,987 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-10 10:14:57,988 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-10 10:14:57,989 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-10 10:14:57,989 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-09-10 10:14:57,991 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 10:14:58,009 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-10 10:14:58,009 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-10 10:14:58,010 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-10 10:14:58,010 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-10 10:14:58,011 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-10 10:14:58,011 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-10 10:14:58,011 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-10 10:14:58,011 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-10 10:14:58,012 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-10 10:14:58,013 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-10 10:14:58,013 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-10 10:14:58,014 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-10 10:14:58,014 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-10 10:14:58,014 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-10 10:14:58,015 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-10 10:14:58,015 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-10 10:14:58,015 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-10 10:14:58,015 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-10 10:14:58,015 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-10 10:14:58,015 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-10 10:14:58,016 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-10 10:14:58,016 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-10 10:14:58,016 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-10 10:14:58,016 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-10 10:14:58,018 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-10 10:14:58,018 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-10 10:14:58,018 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-10 10:14:58,019 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-09-10 10:14:58,019 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-10 10:14:58,019 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-10 10:14:58,019 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-10 10:14:58,019 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-10 10:14:58,020 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-10 10:14:58,075 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-10 10:14:58,087 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-10 10:14:58,090 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-10 10:14:58,092 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-10 10:14:58,092 INFO L276 PluginConnector]: CDTParser initialized [2018-09-10 10:14:58,093 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-lit/cggmp2005_variant_true-unreach-call_true-termination.c.i [2018-09-10 10:14:58,420 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b7dbf78d/30ec3b8dc1464625bb8d4de086b5f8a8/FLAG056da4023 [2018-09-10 10:14:58,592 INFO L276 CDTParser]: Found 1 translation units. [2018-09-10 10:14:58,592 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/cggmp2005_variant_true-unreach-call_true-termination.c.i [2018-09-10 10:14:58,599 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b7dbf78d/30ec3b8dc1464625bb8d4de086b5f8a8/FLAG056da4023 [2018-09-10 10:14:58,618 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b7dbf78d/30ec3b8dc1464625bb8d4de086b5f8a8 [2018-09-10 10:14:58,629 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-10 10:14:58,632 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-10 10:14:58,633 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-10 10:14:58,634 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-10 10:14:58,640 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-10 10:14:58,641 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 10:14:58" (1/1) ... [2018-09-10 10:14:58,644 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e495c96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 10:14:58, skipping insertion in model container [2018-09-10 10:14:58,644 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 10:14:58" (1/1) ... [2018-09-10 10:14:58,841 INFO L180 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-09-10 10:14:58,891 INFO L175 PostProcessor]: Settings: Checked method=main [2018-09-10 10:14:58,910 INFO L431 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-10 10:14:58,918 INFO L175 PostProcessor]: Settings: Checked method=main [2018-09-10 10:14:58,937 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 10:14:58 WrapperNode [2018-09-10 10:14:58,937 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-10 10:14:58,938 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-10 10:14:58,938 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-10 10:14:58,938 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-10 10:14:58,947 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 10:14:58" (1/1) ... [2018-09-10 10:14:58,954 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 10:14:58" (1/1) ... [2018-09-10 10:14:58,961 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-10 10:14:58,962 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-10 10:14:58,962 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-10 10:14:58,962 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-10 10:14:58,972 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 10:14:58" (1/1) ... [2018-09-10 10:14:58,973 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 10:14:58" (1/1) ... [2018-09-10 10:14:58,974 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 10:14:58" (1/1) ... [2018-09-10 10:14:58,978 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 10:14:58" (1/1) ... [2018-09-10 10:14:58,980 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 10:14:58" (1/1) ... [2018-09-10 10:14:58,987 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 10:14:58" (1/1) ... [2018-09-10 10:14:58,988 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 10:14:58" (1/1) ... [2018-09-10 10:14:58,994 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-10 10:14:58,995 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-10 10:14:58,995 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-10 10:14:58,995 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-10 10:14:58,996 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 10:14:58" (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 10:14:59,064 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-10 10:14:59,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-10 10:14:59,065 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_lit_cggmp_____variant_true_unreach_call_true_termination_c_i____VERIFIER_assert [2018-09-10 10:14:59,065 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_lit_cggmp_____variant_true_unreach_call_true_termination_c_i____VERIFIER_assert [2018-09-10 10:14:59,066 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-10 10:14:59,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-10 10:14:59,066 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-10 10:14:59,066 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-10 10:14:59,340 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-10 10:14:59,340 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 10:14:59 BoogieIcfgContainer [2018-09-10 10:14:59,341 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-10 10:14:59,342 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-10 10:14:59,342 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-10 10:14:59,345 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-10 10:14:59,345 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 10:14:58" (1/3) ... [2018-09-10 10:14:59,346 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fb77d38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 10:14:59, skipping insertion in model container [2018-09-10 10:14:59,346 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 10:14:58" (2/3) ... [2018-09-10 10:14:59,347 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fb77d38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 10:14:59, skipping insertion in model container [2018-09-10 10:14:59,347 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 10:14:59" (3/3) ... [2018-09-10 10:14:59,348 INFO L112 eAbstractionObserver]: Analyzing ICFG cggmp2005_variant_true-unreach-call_true-termination.c.i [2018-09-10 10:14:59,358 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-10 10:14:59,367 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-10 10:14:59,428 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-10 10:14:59,429 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-10 10:14:59,429 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-10 10:14:59,430 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-10 10:14:59,430 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-10 10:14:59,430 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-10 10:14:59,430 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-10 10:14:59,431 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-10 10:14:59,431 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-10 10:14:59,462 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2018-09-10 10:14:59,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-09-10 10:14:59,475 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 10:14:59,479 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 10:14:59,481 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_lit_cggmp_____variant_true_unreach_call_true_termination_c_i____VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 10:14:59,494 INFO L82 PathProgramCache]: Analyzing trace with hash 215749912, now seen corresponding path program 1 times [2018-09-10 10:14:59,503 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 10:14:59,564 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:14:59,565 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:14:59,565 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:14:59,565 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 10:14:59,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:14:59,623 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 10:14:59,625 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-10 10:14:59,625 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-10 10:14:59,625 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 10:14:59,630 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-10 10:14:59,645 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-10 10:14:59,645 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-10 10:14:59,648 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 2 states. [2018-09-10 10:14:59,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 10:14:59,670 INFO L93 Difference]: Finished difference Result 32 states and 36 transitions. [2018-09-10 10:14:59,671 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-10 10:14:59,672 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2018-09-10 10:14:59,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 10:14:59,681 INFO L225 Difference]: With dead ends: 32 [2018-09-10 10:14:59,681 INFO L226 Difference]: Without dead ends: 13 [2018-09-10 10:14:59,685 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-10 10:14:59,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2018-09-10 10:14:59,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2018-09-10 10:14:59,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2018-09-10 10:14:59,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2018-09-10 10:14:59,723 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 11 [2018-09-10 10:14:59,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 10:14:59,723 INFO L480 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2018-09-10 10:14:59,723 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-10 10:14:59,724 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2018-09-10 10:14:59,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-09-10 10:14:59,724 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 10:14:59,725 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 10:14:59,725 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_lit_cggmp_____variant_true_unreach_call_true_termination_c_i____VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 10:14:59,725 INFO L82 PathProgramCache]: Analyzing trace with hash -2141567391, now seen corresponding path program 1 times [2018-09-10 10:14:59,726 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 10:14:59,727 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:14:59,727 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:14:59,727 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:14:59,727 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 10:14:59,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:14:59,778 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 10:14:59,778 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-10 10:14:59,779 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-10 10:14:59,779 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 10:14:59,781 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-10 10:14:59,781 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-10 10:14:59,781 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-10 10:14:59,782 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand 3 states. [2018-09-10 10:14:59,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 10:14:59,841 INFO L93 Difference]: Finished difference Result 20 states and 20 transitions. [2018-09-10 10:14:59,842 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-10 10:14:59,842 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2018-09-10 10:14:59,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 10:14:59,843 INFO L225 Difference]: With dead ends: 20 [2018-09-10 10:14:59,843 INFO L226 Difference]: Without dead ends: 15 [2018-09-10 10:14:59,844 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-10 10:14:59,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2018-09-10 10:14:59,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2018-09-10 10:14:59,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-09-10 10:14:59,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2018-09-10 10:14:59,849 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 12 [2018-09-10 10:14:59,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 10:14:59,849 INFO L480 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2018-09-10 10:14:59,849 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-10 10:14:59,849 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2018-09-10 10:14:59,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-09-10 10:14:59,850 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 10:14:59,850 INFO L376 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 10:14:59,851 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_lit_cggmp_____variant_true_unreach_call_true_termination_c_i____VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 10:14:59,851 INFO L82 PathProgramCache]: Analyzing trace with hash 556463175, now seen corresponding path program 1 times [2018-09-10 10:14:59,851 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 10:14:59,852 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:14:59,852 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:14:59,852 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:14:59,853 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 10:14:59,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:15:00,249 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 10:15:00,250 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 10:15:00,250 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 10:15:00,271 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:15:00,271 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 10:15:00,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:15:00,303 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 10:15:00,768 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 10:15:00,768 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 10:15:00,989 WARN L175 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 9 [2018-09-10 10:15:01,073 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 10:15:01,094 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 10:15:01,094 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-10 10:15:01,120 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:15:01,120 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 10:15:01,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:15:01,139 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 10:15:01,242 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 10:15:01,243 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 10:15:01,340 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 10:15:01,343 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-10 10:15:01,344 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8, 8, 8] total 15 [2018-09-10 10:15:01,344 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-10 10:15:01,344 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-10 10:15:01,345 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-10 10:15:01,346 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2018-09-10 10:15:01,346 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand 11 states. [2018-09-10 10:15:01,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 10:15:01,672 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2018-09-10 10:15:01,672 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-10 10:15:01,673 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 14 [2018-09-10 10:15:01,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 10:15:01,674 INFO L225 Difference]: With dead ends: 22 [2018-09-10 10:15:01,674 INFO L226 Difference]: Without dead ends: 17 [2018-09-10 10:15:01,675 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 38 SyntacticMatches, 11 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=58, Invalid=214, Unknown=0, NotChecked=0, Total=272 [2018-09-10 10:15:01,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2018-09-10 10:15:01,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2018-09-10 10:15:01,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2018-09-10 10:15:01,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2018-09-10 10:15:01,680 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 14 [2018-09-10 10:15:01,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 10:15:01,681 INFO L480 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2018-09-10 10:15:01,681 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-10 10:15:01,681 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2018-09-10 10:15:01,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-09-10 10:15:01,682 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 10:15:01,682 INFO L376 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 10:15:01,683 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_lit_cggmp_____variant_true_unreach_call_true_termination_c_i____VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 10:15:01,683 INFO L82 PathProgramCache]: Analyzing trace with hash -796409683, now seen corresponding path program 2 times [2018-09-10 10:15:01,683 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 10:15:01,684 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:15:01,684 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:15:01,685 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:15:01,685 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 10:15:01,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:15:01,942 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-09-10 10:15:01,943 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 10:15:01,943 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 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-10 10:15:01,964 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-09-10 10:15:01,964 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST1 (IT: FPandBP) [2018-09-10 10:15:02,004 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-09-10 10:15:02,005 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-10 10:15:02,007 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 10:15:02,267 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 10:15:02,268 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 10:15:02,472 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 10:15:02,493 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 10:15:02,493 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 5 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-10 10:15:02,510 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-09-10 10:15:02,510 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST1 (IT: FPandBP) [2018-09-10 10:15:02,528 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-09-10 10:15:02,528 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-10 10:15:02,531 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 10:15:02,628 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 10:15:02,629 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 10:15:02,684 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 10:15:02,685 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-10 10:15:02,685 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9, 9, 9, 9] total 17 [2018-09-10 10:15:02,686 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-10 10:15:02,686 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-10 10:15:02,687 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-10 10:15:02,687 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2018-09-10 10:15:02,688 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand 12 states. [2018-09-10 10:15:03,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 10:15:03,034 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions. [2018-09-10 10:15:03,034 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-10 10:15:03,035 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 16 [2018-09-10 10:15:03,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 10:15:03,035 INFO L225 Difference]: With dead ends: 20 [2018-09-10 10:15:03,035 INFO L226 Difference]: Without dead ends: 0 [2018-09-10 10:15:03,036 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 44 SyntacticMatches, 12 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=113, Invalid=439, Unknown=0, NotChecked=0, Total=552 [2018-09-10 10:15:03,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-10 10:15:03,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-10 10:15:03,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-10 10:15:03,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-10 10:15:03,037 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2018-09-10 10:15:03,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 10:15:03,038 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-10 10:15:03,038 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-10 10:15:03,038 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-10 10:15:03,038 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-10 10:15:03,043 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-10 10:15:03,259 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-09-10 10:15:03,259 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-09-10 10:15:03,259 INFO L429 ceAbstractionStarter]: At program point __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_lit_cggmp_____variant_true_unreach_call_true_termination_c_i____VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2018-09-10 10:15:03,260 INFO L426 ceAbstractionStarter]: For program point __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_lit_cggmp_____variant_true_unreach_call_true_termination_c_i____VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2018-09-10 10:15:03,260 INFO L426 ceAbstractionStarter]: For program point __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_lit_cggmp_____variant_true_unreach_call_true_termination_c_i____VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-09-10 10:15:03,260 INFO L426 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-09-10 10:15:03,260 INFO L426 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-09-10 10:15:03,260 INFO L426 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2018-09-10 10:15:03,260 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-09-10 10:15:03,260 INFO L429 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-09-10 10:15:03,260 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-09-10 10:15:03,261 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-09-10 10:15:03,261 INFO L429 ceAbstractionStarter]: At program point mainENTRY(lines 10 23) the Hoare annotation is: true [2018-09-10 10:15:03,261 INFO L426 ceAbstractionStarter]: For program point mainEXIT(lines 10 23) no Hoare annotation was computed. [2018-09-10 10:15:03,261 INFO L426 ceAbstractionStarter]: For program point L21(line 21) no Hoare annotation was computed. [2018-09-10 10:15:03,261 INFO L426 ceAbstractionStarter]: For program point L16-1(lines 16 20) no Hoare annotation was computed. [2018-09-10 10:15:03,261 INFO L426 ceAbstractionStarter]: For program point L14(line 14) no Hoare annotation was computed. [2018-09-10 10:15:03,261 INFO L422 ceAbstractionStarter]: At program point L16-3(lines 16 20) the Hoare annotation is: (let ((.cse0 (+ (* 2 main_~mid~0) main_~lo~0))) (and (<= .cse0 main_~hi~0) (<= main_~hi~0 .cse0) (<= main_~lo~0 main_~hi~0))) [2018-09-10 10:15:03,262 INFO L426 ceAbstractionStarter]: For program point mainFINAL(lines 10 23) no Hoare annotation was computed. [2018-09-10 10:15:03,262 INFO L422 ceAbstractionStarter]: At program point L16-4(lines 16 20) the Hoare annotation is: (or (let ((.cse0 (+ (* 2 main_~mid~0) main_~lo~0))) (and (<= .cse0 main_~hi~0) (<= main_~hi~0 main_~lo~0) (<= main_~hi~0 .cse0) (<= main_~lo~0 main_~hi~0))) (and (<= main_~lo~0 1) (exists ((v_main_~mid~0_8 Int)) (and (< 0 v_main_~mid~0_8) (= (* 2 v_main_~mid~0_8) (+ main_~hi~0 1)) (<= v_main_~mid~0_8 (+ main_~mid~0 1)))) (<= 1 main_~lo~0) (exists ((v_main_~mid~0_8 Int)) (and (< 0 v_main_~mid~0_8) (= (* 2 v_main_~mid~0_8) (+ main_~hi~0 1)) (<= v_main_~mid~0_8 1))))) [2018-09-10 10:15:03,272 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 10:15:03 BoogieIcfgContainer [2018-09-10 10:15:03,272 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-10 10:15:03,273 INFO L168 Benchmark]: Toolchain (without parser) took 4643.19 ms. Allocated memory was 1.6 GB in the beginning and 2.3 GB in the end (delta: 753.4 MB). Free memory was 1.4 GB in the beginning and 2.0 GB in the end (delta: -564.3 MB). Peak memory consumption was 189.1 MB. Max. memory is 7.1 GB. [2018-09-10 10:15:03,275 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.6 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-10 10:15:03,275 INFO L168 Benchmark]: CACSL2BoogieTranslator took 303.95 ms. Allocated memory is still 1.6 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 10:15:03,276 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.69 ms. Allocated memory is still 1.6 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-10 10:15:03,277 INFO L168 Benchmark]: Boogie Preprocessor took 32.79 ms. Allocated memory is still 1.6 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-10 10:15:03,277 INFO L168 Benchmark]: RCFGBuilder took 345.78 ms. Allocated memory was 1.6 GB in the beginning and 2.3 GB in the end (delta: 753.4 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -804.2 MB). Peak memory consumption was 26.5 MB. Max. memory is 7.1 GB. [2018-09-10 10:15:03,278 INFO L168 Benchmark]: TraceAbstraction took 3930.80 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 229.3 MB). Peak memory consumption was 229.3 MB. Max. memory is 7.1 GB. [2018-09-10 10:15:03,283 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.6 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 303.95 ms. Allocated memory is still 1.6 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 23.69 ms. Allocated memory is still 1.6 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 32.79 ms. Allocated memory is still 1.6 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 345.78 ms. Allocated memory was 1.6 GB in the beginning and 2.3 GB in the end (delta: 753.4 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -804.2 MB). Peak memory consumption was 26.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3930.80 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 229.3 MB). Peak memory consumption was 229.3 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: 16]: Loop Invariant Derived loop invariant: (2 * mid + lo <= hi && hi <= 2 * mid + lo) && lo <= hi - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 20 locations, 1 error locations. SAFE Result, 3.8s OverallTime, 4 OverallIterations, 3 TraceHistogramMax, 0.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.2s HoareAnnotationTime, HoareTripleCheckerStatistics: 54 SDtfs, 13 SDslu, 99 SDs, 0 SdLazy, 69 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 147 GetRequests, 86 SyntacticMatches, 23 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 2.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 11 PreInvPairs, 17 NumberOfFragments, 84 HoareAnnotationTreeSize, 11 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 118 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 113 NumberOfCodeBlocks, 113 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 161 ConstructedInterpolants, 12 QuantifiedInterpolants, 15815 SizeOfPredicates, 16 NumberOfNonLiveVariables, 172 ConjunctsInSsa, 80 ConjunctsInUnsatCore, 12 InterpolantComputations, 2 PerfectInterpolantSequences, 2/40 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/cggmp2005_variant_true-unreach-call_true-termination.c.i_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-10_10-15-03-298.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/cggmp2005_variant_true-unreach-call_true-termination.c.i_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-10_10-15-03-298.csv Received shutdown request...