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/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf -i ../../../trunk/examples/svcomp/loop-acceleration/phases_true-unreach-call2_false-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dd2f093 [2018-07-24 10:52:46,039 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-24 10:52:46,042 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-24 10:52:46,054 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-24 10:52:46,054 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-24 10:52:46,055 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-24 10:52:46,056 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-24 10:52:46,058 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-24 10:52:46,060 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-24 10:52:46,061 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-24 10:52:46,062 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-24 10:52:46,062 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-24 10:52:46,063 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-24 10:52:46,064 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-24 10:52:46,065 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-24 10:52:46,066 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-24 10:52:46,067 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-24 10:52:46,069 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-24 10:52:46,071 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-24 10:52:46,072 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-24 10:52:46,074 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-24 10:52:46,075 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-24 10:52:46,078 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-24 10:52:46,078 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-24 10:52:46,078 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-24 10:52:46,079 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-24 10:52:46,080 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-24 10:52:46,081 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-24 10:52:46,082 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-24 10:52:46,083 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-24 10:52:46,083 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-24 10:52:46,084 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-24 10:52:46,085 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-24 10:52:46,085 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-24 10:52:46,086 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-24 10:52:46,087 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-24 10:52:46,087 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 [2018-07-24 10:52:46,102 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-24 10:52:46,103 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-24 10:52:46,104 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-24 10:52:46,104 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-24 10:52:46,104 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-24 10:52:46,104 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-24 10:52:46,105 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-24 10:52:46,105 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-24 10:52:46,105 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-24 10:52:46,105 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-24 10:52:46,105 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-24 10:52:46,106 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-24 10:52:46,106 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-24 10:52:46,106 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-24 10:52:46,107 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-24 10:52:46,107 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-24 10:52:46,107 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-24 10:52:46,107 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-24 10:52:46,107 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-24 10:52:46,108 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-24 10:52:46,108 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-24 10:52:46,108 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-24 10:52:46,108 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-24 10:52:46,108 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-24 10:52:46,109 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-24 10:52:46,109 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-24 10:52:46,109 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-24 10:52:46,109 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-07-24 10:52:46,109 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-24 10:52:46,110 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-24 10:52:46,110 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-24 10:52:46,110 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-24 10:52:46,110 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-24 10:52:46,153 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-24 10:52:46,166 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-24 10:52:46,170 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-24 10:52:46,171 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-24 10:52:46,172 INFO L276 PluginConnector]: CDTParser initialized [2018-07-24 10:52:46,173 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-acceleration/phases_true-unreach-call2_false-termination.i [2018-07-24 10:52:46,511 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1f271624/83ec34abf7d6431ea7b5a0b912227697/FLAG33eae591e [2018-07-24 10:52:46,680 INFO L276 CDTParser]: Found 1 translation units. [2018-07-24 10:52:46,681 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/phases_true-unreach-call2_false-termination.i [2018-07-24 10:52:46,690 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1f271624/83ec34abf7d6431ea7b5a0b912227697/FLAG33eae591e [2018-07-24 10:52:46,704 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1f271624/83ec34abf7d6431ea7b5a0b912227697 [2018-07-24 10:52:46,714 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-24 10:52:46,715 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-24 10:52:46,716 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-24 10:52:46,716 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-24 10:52:46,723 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-24 10:52:46,724 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 10:52:46" (1/1) ... [2018-07-24 10:52:46,727 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@536648b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 10:52:46, skipping insertion in model container [2018-07-24 10:52:46,727 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 10:52:46" (1/1) ... [2018-07-24 10:52:46,879 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-24 10:52:46,915 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 10:52:46,931 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-24 10:52:46,936 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 10:52:46,949 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 10:52:46 WrapperNode [2018-07-24 10:52:46,950 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-24 10:52:46,951 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-24 10:52:46,951 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-24 10:52:46,951 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-24 10:52:46,961 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 10:52:46" (1/1) ... [2018-07-24 10:52:46,967 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 10:52:46" (1/1) ... [2018-07-24 10:52:46,973 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-24 10:52:46,973 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-24 10:52:46,974 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-24 10:52:46,974 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-24 10:52:46,984 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 10:52:46" (1/1) ... [2018-07-24 10:52:46,984 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 10:52:46" (1/1) ... [2018-07-24 10:52:46,985 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 10:52:46" (1/1) ... [2018-07-24 10:52:46,985 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 10:52:46" (1/1) ... [2018-07-24 10:52:46,987 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 10:52:46" (1/1) ... [2018-07-24 10:52:46,993 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 10:52:46" (1/1) ... [2018-07-24 10:52:46,994 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 10:52:46" (1/1) ... [2018-07-24 10:52:46,995 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-24 10:52:46,996 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-24 10:52:46,996 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-24 10:52:46,996 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-24 10:52:46,997 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 10:52:46" (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 [2018-07-24 10:52:47,066 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-24 10:52:47,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-24 10:52:47,067 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-24 10:52:47,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-24 10:52:47,067 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-24 10:52:47,067 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-24 10:52:47,068 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_acceleration_phases_true_unreach_call__false_termination_i____VERIFIER_assert [2018-07-24 10:52:47,068 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_acceleration_phases_true_unreach_call__false_termination_i____VERIFIER_assert [2018-07-24 10:52:47,442 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-24 10:52:47,443 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 10:52:47 BoogieIcfgContainer [2018-07-24 10:52:47,443 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-24 10:52:47,444 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-24 10:52:47,444 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-24 10:52:47,447 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-24 10:52:47,448 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.07 10:52:46" (1/3) ... [2018-07-24 10:52:47,448 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e901e48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 10:52:47, skipping insertion in model container [2018-07-24 10:52:47,449 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 10:52:46" (2/3) ... [2018-07-24 10:52:47,449 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e901e48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 10:52:47, skipping insertion in model container [2018-07-24 10:52:47,449 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 10:52:47" (3/3) ... [2018-07-24 10:52:47,451 INFO L112 eAbstractionObserver]: Analyzing ICFG phases_true-unreach-call2_false-termination.i [2018-07-24 10:52:47,461 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-24 10:52:47,469 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-24 10:52:47,555 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-24 10:52:47,556 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-24 10:52:47,556 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-24 10:52:47,556 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-24 10:52:47,556 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-24 10:52:47,556 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-24 10:52:47,556 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-24 10:52:47,557 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-24 10:52:47,557 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-24 10:52:47,574 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2018-07-24 10:52:47,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-07-24 10:52:47,581 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 10:52:47,581 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 10:52:47,582 INFO L414 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_acceleration_phases_true_unreach_call__false_termination_i____VERIFIER_assertErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 10:52:47,588 INFO L82 PathProgramCache]: Analyzing trace with hash -1994259344, now seen corresponding path program 1 times [2018-07-24 10:52:47,591 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 10:52:47,672 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 10:52:47,673 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 10:52:47,673 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 10:52:47,673 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 10:52:47,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 10:52:47,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 10:52:47,735 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 10:52:47,735 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-07-24 10:52:47,735 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 10:52:47,740 INFO L450 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-07-24 10:52:47,753 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-07-24 10:52:47,753 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-07-24 10:52:47,755 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 2 states. [2018-07-24 10:52:47,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 10:52:47,775 INFO L93 Difference]: Finished difference Result 31 states and 36 transitions. [2018-07-24 10:52:47,775 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-07-24 10:52:47,776 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2018-07-24 10:52:47,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 10:52:47,786 INFO L225 Difference]: With dead ends: 31 [2018-07-24 10:52:47,786 INFO L226 Difference]: Without dead ends: 14 [2018-07-24 10:52:47,790 INFO L573 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 [2018-07-24 10:52:47,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2018-07-24 10:52:47,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2018-07-24 10:52:47,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-07-24 10:52:47,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2018-07-24 10:52:47,829 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 11 [2018-07-24 10:52:47,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 10:52:47,830 INFO L471 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2018-07-24 10:52:47,830 INFO L472 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-07-24 10:52:47,830 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2018-07-24 10:52:47,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-07-24 10:52:47,831 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 10:52:47,831 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 10:52:47,832 INFO L414 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_acceleration_phases_true_unreach_call__false_termination_i____VERIFIER_assertErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 10:52:47,832 INFO L82 PathProgramCache]: Analyzing trace with hash -2119643788, now seen corresponding path program 1 times [2018-07-24 10:52:47,832 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 10:52:47,834 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 10:52:47,834 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 10:52:47,834 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 10:52:47,834 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 10:52:47,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 10:52:48,122 WARN L169 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 17 [2018-07-24 10:52:48,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 10:52:48,204 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 10:52:48,204 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-07-24 10:52:48,204 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 10:52:48,206 INFO L450 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-24 10:52:48,206 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-24 10:52:48,207 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-07-24 10:52:48,207 INFO L87 Difference]: Start difference. First operand 14 states and 15 transitions. Second operand 7 states. [2018-07-24 10:52:48,475 WARN L169 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 15 [2018-07-24 10:52:48,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 10:52:48,698 INFO L93 Difference]: Finished difference Result 22 states and 24 transitions. [2018-07-24 10:52:48,699 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-24 10:52:48,699 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 12 [2018-07-24 10:52:48,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 10:52:48,700 INFO L225 Difference]: With dead ends: 22 [2018-07-24 10:52:48,700 INFO L226 Difference]: Without dead ends: 17 [2018-07-24 10:52:48,702 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-07-24 10:52:48,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2018-07-24 10:52:48,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2018-07-24 10:52:48,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2018-07-24 10:52:48,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2018-07-24 10:52:48,707 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 12 [2018-07-24 10:52:48,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 10:52:48,708 INFO L471 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2018-07-24 10:52:48,708 INFO L472 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-24 10:52:48,708 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2018-07-24 10:52:48,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-07-24 10:52:48,709 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 10:52:48,709 INFO L353 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 10:52:48,709 INFO L414 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_acceleration_phases_true_unreach_call__false_termination_i____VERIFIER_assertErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 10:52:48,709 INFO L82 PathProgramCache]: Analyzing trace with hash -1089190421, now seen corresponding path program 1 times [2018-07-24 10:52:48,710 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 10:52:48,711 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 10:52:48,711 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 10:52:48,711 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 10:52:48,711 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 10:52:48,717 ERROR L232 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-07-24 10:52:48,717 INFO L255 seRefinementStrategy]: Advancing trace checker [2018-07-24 10:52:48,718 INFO L168 anRefinementStrategy]: Switched to traceCheck mode Z3_NO_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 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-07-24 10:52:48,729 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 10:52:48,730 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_NO_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: null) [2018-07-24 10:52:48,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 10:52:48,760 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 16 with the following transitions: [2018-07-24 10:52:48,764 INFO L201 CegarAbsIntRunner]: [0], [4], [8], [12], [16], [18], [23], [30], [33], [35], [41], [42], [43], [45] [2018-07-24 10:52:48,819 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-24 10:52:48,819 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-24 10:52:48,907 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-07-24 10:52:49,217 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-07-24 10:52:49,218 INFO L272 AbstractInterpreter]: Visited 14 different actions 70 times. Merged at 4 different actions 28 times. Widened at 1 different actions 3 times. Found 1 fixpoints after 1 different actions. Largest state had 4 variables. [2018-07-24 10:52:49,262 INFO L419 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-07-24 10:52:49,262 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 10:52:49,263 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 10:52:49,278 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 10:52:49,278 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 10:52:49,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 10:52:49,320 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 10:52:49,703 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 10:52:49,703 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 10:52:50,112 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 10:52:50,132 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-24 10:52:50,132 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [8] total 13 [2018-07-24 10:52:50,132 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 10:52:50,133 INFO L450 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-24 10:52:50,133 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-24 10:52:50,134 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-07-24 10:52:50,134 INFO L87 Difference]: Start difference. First operand 17 states and 19 transitions. Second operand 7 states. [2018-07-24 10:52:54,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 10:52:54,293 INFO L93 Difference]: Finished difference Result 24 states and 26 transitions. [2018-07-24 10:52:54,295 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-24 10:52:54,295 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2018-07-24 10:52:54,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 10:52:54,296 INFO L225 Difference]: With dead ends: 24 [2018-07-24 10:52:54,296 INFO L226 Difference]: Without dead ends: 19 [2018-07-24 10:52:54,297 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2018-07-24 10:52:54,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2018-07-24 10:52:54,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2018-07-24 10:52:54,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-07-24 10:52:54,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2018-07-24 10:52:54,301 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 15 [2018-07-24 10:52:54,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 10:52:54,302 INFO L471 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2018-07-24 10:52:54,302 INFO L472 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-24 10:52:54,302 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2018-07-24 10:52:54,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-07-24 10:52:54,303 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 10:52:54,303 INFO L353 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 10:52:54,303 INFO L414 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_acceleration_phases_true_unreach_call__false_termination_i____VERIFIER_assertErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 10:52:54,304 INFO L82 PathProgramCache]: Analyzing trace with hash -759205998, now seen corresponding path program 1 times [2018-07-24 10:52:54,304 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 10:52:54,305 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 10:52:54,305 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 10:52:54,305 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 10:52:54,305 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 10:52:54,309 ERROR L232 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-07-24 10:52:54,309 INFO L255 seRefinementStrategy]: Advancing trace checker [2018-07-24 10:52:54,309 INFO L168 anRefinementStrategy]: Switched to traceCheck mode Z3_NO_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 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-07-24 10:52:54,319 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 10:52:54,320 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_NO_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: null) [2018-07-24 10:52:54,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 10:52:54,375 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 19 with the following transitions: [2018-07-24 10:52:54,375 INFO L201 CegarAbsIntRunner]: [0], [4], [8], [12], [16], [18], [21], [23], [30], [33], [35], [41], [42], [43], [45] [2018-07-24 10:52:54,377 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-24 10:52:54,380 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-24 10:52:54,385 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-07-24 10:52:54,685 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-07-24 10:52:54,685 INFO L272 AbstractInterpreter]: Visited 15 different actions 78 times. Merged at 5 different actions 28 times. Widened at 1 different actions 2 times. Found 9 fixpoints after 2 different actions. Largest state had 4 variables. [2018-07-24 10:52:54,726 INFO L419 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-07-24 10:52:54,727 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 10:52:54,727 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 10:52:54,738 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 10:52:54,738 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 10:52:54,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 10:52:54,768 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 10:52:54,804 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-07-24 10:52:54,805 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 10:52:56,895 WARN L1032 $PredicateComparison]: unable to prove that (let ((.cse0 (mod (* c_main_~x~0 c_main_~x~0) 4294967296)) (.cse1 (mod c_main_~y~0 4294967296))) (or (< .cse0 .cse1) (= .cse1 .cse0) (let ((.cse9 (mod c_main_~x~0 4294967296))) (let ((.cse8 (div .cse1 .cse9))) (let ((.cse6 (= (mod .cse1 .cse9) 0)) (.cse12 (<= (mod .cse8 4294967296) .cse9)) (.cse13 (<= 0 .cse9))) (let ((.cse5 (<= 0 .cse1)) (.cse7 (or (<= (mod (+ .cse8 4294967295) 4294967296) .cse9) .cse13)) (.cse3 (or .cse12 .cse13)) (.cse10 (< .cse9 0)) (.cse2 (and (not .cse6) (< .cse1 0)))) (and (or (let ((.cse4 (or (<= (mod (+ .cse8 1) 4294967296) .cse9) .cse10))) (and (or .cse2 (and .cse3 .cse4)) (or .cse5 .cse6 (and .cse7 .cse4)))) .cse5 .cse6) (or (let ((.cse11 (or .cse12 .cse10))) (and (or .cse5 .cse6 (and .cse7 .cse11)) (or .cse2 (and .cse3 .cse11)))) .cse2)))))))) is different from true [2018-07-24 10:52:56,956 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-07-24 10:52:56,977 INFO L309 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-07-24 10:52:56,977 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4, 7] imperfect sequences [] total 9 [2018-07-24 10:52:56,977 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 10:52:56,977 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 10:52:56,978 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 10:52:56,978 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=41, Unknown=1, NotChecked=12, Total=72 [2018-07-24 10:52:56,978 INFO L87 Difference]: Start difference. First operand 19 states and 21 transitions. Second operand 4 states. [2018-07-24 10:52:57,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 10:52:57,021 INFO L93 Difference]: Finished difference Result 21 states and 23 transitions. [2018-07-24 10:52:57,023 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 10:52:57,023 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2018-07-24 10:52:57,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 10:52:57,024 INFO L225 Difference]: With dead ends: 21 [2018-07-24 10:52:57,024 INFO L226 Difference]: Without dead ends: 0 [2018-07-24 10:52:57,024 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 26 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=18, Invalid=41, Unknown=1, NotChecked=12, Total=72 [2018-07-24 10:52:57,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-07-24 10:52:57,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-07-24 10:52:57,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-07-24 10:52:57,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-07-24 10:52:57,025 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2018-07-24 10:52:57,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 10:52:57,026 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-07-24 10:52:57,026 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 10:52:57,026 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-07-24 10:52:57,026 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-07-24 10:52:57,031 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-07-24 10:52:57,122 INFO L421 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-07-24 10:52:57,122 INFO L424 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-07-24 10:52:57,123 INFO L424 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-07-24 10:52:57,123 INFO L424 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-07-24 10:52:57,123 INFO L421 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-07-24 10:52:57,123 INFO L421 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-07-24 10:52:57,123 INFO L421 ceAbstractionStarter]: For program point mainFINAL(lines 10 22) no Hoare annotation was computed. [2018-07-24 10:52:57,123 INFO L417 ceAbstractionStarter]: At program point L14''(lines 14 20) the Hoare annotation is: (= (mod main_~y~0 4294967296) (mod main_~x~0 4294967296)) [2018-07-24 10:52:57,123 INFO L421 ceAbstractionStarter]: For program point L14(lines 14 20) no Hoare annotation was computed. [2018-07-24 10:52:57,124 INFO L421 ceAbstractionStarter]: For program point L13(line 13) no Hoare annotation was computed. [2018-07-24 10:52:57,124 INFO L421 ceAbstractionStarter]: For program point mainEXIT(lines 10 22) no Hoare annotation was computed. [2018-07-24 10:52:57,124 INFO L424 ceAbstractionStarter]: At program point mainENTRY(lines 10 22) the Hoare annotation is: true [2018-07-24 10:52:57,124 INFO L421 ceAbstractionStarter]: For program point L15(lines 15 19) no Hoare annotation was computed. [2018-07-24 10:52:57,124 INFO L417 ceAbstractionStarter]: At program point L15''(lines 14 20) the Hoare annotation is: (and (<= main_~x~0 1) (<= 1 main_~x~0) (<= (+ (* 4294967296 (div main_~y~0 4294967296)) main_~x~0) main_~y~0)) [2018-07-24 10:52:57,124 INFO L424 ceAbstractionStarter]: At program point __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_acceleration_phases_true_unreach_call__false_termination_i____VERIFIER_assertENTRY(lines 4 9) the Hoare annotation is: true [2018-07-24 10:52:57,125 INFO L421 ceAbstractionStarter]: For program point __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_acceleration_phases_true_unreach_call__false_termination_i____VERIFIER_assertErr0AssertViolationERROR_FUNCTION(line 6) no Hoare annotation was computed. [2018-07-24 10:52:57,125 INFO L421 ceAbstractionStarter]: For program point __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_acceleration_phases_true_unreach_call__false_termination_i____VERIFIER_assertEXIT(lines 4 9) no Hoare annotation was computed. [2018-07-24 10:52:57,125 INFO L421 ceAbstractionStarter]: For program point L5(lines 5 7) no Hoare annotation was computed. [2018-07-24 10:52:57,125 INFO L421 ceAbstractionStarter]: For program point L6(line 6) no Hoare annotation was computed. [2018-07-24 10:52:57,125 INFO L421 ceAbstractionStarter]: For program point L5''(lines 4 9) no Hoare annotation was computed. [2018-07-24 10:52:57,134 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.07 10:52:57 BoogieIcfgContainer [2018-07-24 10:52:57,134 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-24 10:52:57,135 INFO L168 Benchmark]: Toolchain (without parser) took 10421.10 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 767.6 MB). Free memory was 1.4 GB in the beginning and 2.0 GB in the end (delta: -593.6 MB). Peak memory consumption was 173.9 MB. Max. memory is 7.1 GB. [2018-07-24 10:52:57,137 INFO L168 Benchmark]: CDTParser took 0.23 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. [2018-07-24 10:52:57,137 INFO L168 Benchmark]: CACSL2BoogieTranslator took 233.77 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-07-24 10:52:57,138 INFO L168 Benchmark]: Boogie Procedure Inliner took 22.68 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. [2018-07-24 10:52:57,139 INFO L168 Benchmark]: Boogie Preprocessor took 21.86 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. [2018-07-24 10:52:57,139 INFO L168 Benchmark]: RCFGBuilder took 447.54 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 767.6 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -806.7 MB). Peak memory consumption was 27.1 MB. Max. memory is 7.1 GB. [2018-07-24 10:52:57,140 INFO L168 Benchmark]: TraceAbstraction took 9690.48 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: 202.5 MB). Peak memory consumption was 202.5 MB. Max. memory is 7.1 GB. [2018-07-24 10:52:57,145 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 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 233.77 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 22.68 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 21.86 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 447.54 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 767.6 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -806.7 MB). Peak memory consumption was 27.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 9690.48 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: 202.5 MB). Peak memory consumption was 202.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 6]: 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: (x <= 1 && 1 <= x) && 4294967296 * (y / 4294967296) + x <= y - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 20 locations, 1 error locations. SAFE Result, 9.5s OverallTime, 4 OverallIterations, 3 TraceHistogramMax, 4.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 52 SDtfs, 11 SDslu, 87 SDs, 0 SdLazy, 69 SolverSat, 5 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 4.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 78 GetRequests, 47 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 3.5s 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, 0.8s AbstIntTime, 2 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, 10 PreInvPairs, 14 NumberOfFragments, 28 HoareAnnotationTreeSize, 10 FomulaSimplifications, 27 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 35 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 3.3s InterpolantComputationTime, 89 NumberOfCodeBlocks, 89 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 83 ConstructedInterpolants, 0 QuantifiedInterpolants, 9227 SizeOfPredicates, 3 NumberOfNonLiveVariables, 67 ConjunctsInSsa, 29 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 16/18 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/phases_true-unreach-call2_false-termination.i_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-24_10-52-57-159.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/phases_true-unreach-call2_false-termination.i_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-24_10-52-57-159.csv Received shutdown request...