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-acceleration/simple_true-unreach-call4.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-3142e50-m [2018-09-10 10:13:19,415 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-10 10:13:19,421 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-10 10:13:19,446 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-10 10:13:19,446 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-10 10:13:19,450 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-10 10:13:19,452 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-10 10:13:19,456 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-10 10:13:19,459 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-10 10:13:19,459 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-10 10:13:19,469 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-10 10:13:19,469 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-10 10:13:19,470 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-10 10:13:19,475 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-10 10:13:19,476 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-10 10:13:19,477 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-10 10:13:19,481 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-10 10:13:19,485 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-10 10:13:19,487 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-10 10:13:19,492 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-10 10:13:19,495 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-10 10:13:19,497 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-10 10:13:19,500 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-10 10:13:19,500 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-10 10:13:19,500 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-10 10:13:19,503 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-10 10:13:19,504 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-10 10:13:19,505 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-10 10:13:19,506 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-10 10:13:19,507 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-10 10:13:19,508 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-10 10:13:19,508 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-10 10:13:19,510 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-10 10:13:19,511 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-10 10:13:19,512 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-10 10:13:19,513 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-10 10:13:19,513 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 10:13:19,542 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-10 10:13:19,542 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-10 10:13:19,544 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-10 10:13:19,544 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-10 10:13:19,547 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-10 10:13:19,547 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-10 10:13:19,548 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-10 10:13:19,548 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-10 10:13:19,548 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-10 10:13:19,548 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-10 10:13:19,548 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-10 10:13:19,550 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-10 10:13:19,550 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-10 10:13:19,551 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-10 10:13:19,551 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-10 10:13:19,551 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-10 10:13:19,551 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-10 10:13:19,551 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-10 10:13:19,552 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-10 10:13:19,552 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-10 10:13:19,552 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-10 10:13:19,552 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-10 10:13:19,554 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-10 10:13:19,554 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-10 10:13:19,554 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-10 10:13:19,554 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-10 10:13:19,554 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-10 10:13:19,555 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-09-10 10:13:19,555 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-10 10:13:19,555 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-10 10:13:19,555 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-10 10:13:19,555 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-10 10:13:19,556 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-10 10:13:19,622 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-10 10:13:19,640 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-10 10:13:19,646 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-10 10:13:19,648 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-10 10:13:19,649 INFO L276 PluginConnector]: CDTParser initialized [2018-09-10 10:13:19,650 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-acceleration/simple_true-unreach-call4.i [2018-09-10 10:13:20,017 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f855c518/803516066a624e5d9f23e075aca2bd0b/FLAG2a67c0706 [2018-09-10 10:13:20,167 INFO L276 CDTParser]: Found 1 translation units. [2018-09-10 10:13:20,168 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/simple_true-unreach-call4.i [2018-09-10 10:13:20,174 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f855c518/803516066a624e5d9f23e075aca2bd0b/FLAG2a67c0706 [2018-09-10 10:13:20,191 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f855c518/803516066a624e5d9f23e075aca2bd0b [2018-09-10 10:13:20,202 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-10 10:13:20,206 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-10 10:13:20,207 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-10 10:13:20,207 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-10 10:13:20,214 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-10 10:13:20,216 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 10:13:20" (1/1) ... [2018-09-10 10:13:20,219 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6db5c5cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 10:13:20, skipping insertion in model container [2018-09-10 10:13:20,219 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 10:13:20" (1/1) ... [2018-09-10 10:13:20,424 INFO L180 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-09-10 10:13:20,464 INFO L175 PostProcessor]: Settings: Checked method=main [2018-09-10 10:13:20,486 INFO L431 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-10 10:13:20,490 INFO L175 PostProcessor]: Settings: Checked method=main [2018-09-10 10:13:20,511 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 10:13:20 WrapperNode [2018-09-10 10:13:20,511 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-10 10:13:20,512 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-10 10:13:20,512 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-10 10:13:20,512 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-10 10:13:20,523 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 10:13:20" (1/1) ... [2018-09-10 10:13:20,529 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 10:13:20" (1/1) ... [2018-09-10 10:13:20,536 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-10 10:13:20,537 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-10 10:13:20,537 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-10 10:13:20,538 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-10 10:13:20,549 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 10:13:20" (1/1) ... [2018-09-10 10:13:20,549 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 10:13:20" (1/1) ... [2018-09-10 10:13:20,550 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 10:13:20" (1/1) ... [2018-09-10 10:13:20,550 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 10:13:20" (1/1) ... [2018-09-10 10:13:20,555 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 10:13:20" (1/1) ... [2018-09-10 10:13:20,561 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 10:13:20" (1/1) ... [2018-09-10 10:13:20,563 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 10:13:20" (1/1) ... [2018-09-10 10:13:20,564 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-10 10:13:20,565 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-10 10:13:20,565 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-10 10:13:20,565 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-10 10:13:20,566 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 10:13:20" (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 10:13:20,636 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-10 10:13:20,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-10 10:13:20,637 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_acceleration_simple_true_unreach_call__i____VERIFIER_assert [2018-09-10 10:13:20,637 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_acceleration_simple_true_unreach_call__i____VERIFIER_assert [2018-09-10 10:13:20,637 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-10 10:13:20,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-10 10:13:20,638 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-10 10:13:20,638 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-10 10:13:20,883 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-10 10:13:20,884 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 10:13:20 BoogieIcfgContainer [2018-09-10 10:13:20,884 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-10 10:13:20,885 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-10 10:13:20,885 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-10 10:13:20,888 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-10 10:13:20,889 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 10:13:20" (1/3) ... [2018-09-10 10:13:20,890 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@427ab25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 10:13:20, skipping insertion in model container [2018-09-10 10:13:20,890 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 10:13:20" (2/3) ... [2018-09-10 10:13:20,890 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@427ab25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 10:13:20, skipping insertion in model container [2018-09-10 10:13:20,890 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 10:13:20" (3/3) ... [2018-09-10 10:13:20,892 INFO L112 eAbstractionObserver]: Analyzing ICFG simple_true-unreach-call4.i [2018-09-10 10:13:20,902 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-10 10:13:20,910 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-10 10:13:20,959 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-10 10:13:20,960 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-10 10:13:20,960 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-10 10:13:20,960 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-10 10:13:20,960 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-10 10:13:20,960 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-10 10:13:20,960 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-10 10:13:20,961 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-10 10:13:20,961 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-10 10:13:20,977 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2018-09-10 10:13:20,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-09-10 10:13:20,984 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 10:13:20,985 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 10:13:20,986 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_acceleration_simple_true_unreach_call__i____VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 10:13:20,992 INFO L82 PathProgramCache]: Analyzing trace with hash 314686959, now seen corresponding path program 1 times [2018-09-10 10:13:20,995 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 10:13:21,051 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:13:21,051 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:13:21,051 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:13:21,051 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 10:13:21,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:13:21,109 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 10:13:21,112 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-10 10:13:21,112 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-10 10:13:21,112 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 10:13:21,117 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-10 10:13:21,133 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-10 10:13:21,134 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-10 10:13:21,136 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 2 states. [2018-09-10 10:13:21,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 10:13:21,159 INFO L93 Difference]: Finished difference Result 29 states and 32 transitions. [2018-09-10 10:13:21,159 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-10 10:13:21,161 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2018-09-10 10:13:21,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 10:13:21,170 INFO L225 Difference]: With dead ends: 29 [2018-09-10 10:13:21,171 INFO L226 Difference]: Without dead ends: 12 [2018-09-10 10:13:21,174 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 10:13:21,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2018-09-10 10:13:21,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2018-09-10 10:13:21,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-09-10 10:13:21,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2018-09-10 10:13:21,219 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 10 [2018-09-10 10:13:21,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 10:13:21,219 INFO L480 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2018-09-10 10:13:21,219 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-10 10:13:21,219 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2018-09-10 10:13:21,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-09-10 10:13:21,220 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 10:13:21,223 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 10:13:21,224 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_acceleration_simple_true_unreach_call__i____VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 10:13:21,224 INFO L82 PathProgramCache]: Analyzing trace with hash 926255632, now seen corresponding path program 1 times [2018-09-10 10:13:21,224 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 10:13:21,226 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:13:21,226 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:13:21,226 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:13:21,227 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 10:13:21,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:13:21,325 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 10:13:21,326 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-10 10:13:21,326 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-10 10:13:21,326 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 10:13:21,328 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-10 10:13:21,328 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-10 10:13:21,329 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-10 10:13:21,329 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand 3 states. [2018-09-10 10:13:21,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 10:13:21,377 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2018-09-10 10:13:21,378 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-10 10:13:21,378 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2018-09-10 10:13:21,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 10:13:21,379 INFO L225 Difference]: With dead ends: 19 [2018-09-10 10:13:21,380 INFO L226 Difference]: Without dead ends: 14 [2018-09-10 10:13:21,381 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 1 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 10:13:21,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2018-09-10 10:13:21,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2018-09-10 10:13:21,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-09-10 10:13:21,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2018-09-10 10:13:21,386 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 11 [2018-09-10 10:13:21,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 10:13:21,386 INFO L480 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2018-09-10 10:13:21,386 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-10 10:13:21,386 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2018-09-10 10:13:21,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-09-10 10:13:21,387 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 10:13:21,387 INFO L376 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 10:13:21,391 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_acceleration_simple_true_unreach_call__i____VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 10:13:21,391 INFO L82 PathProgramCache]: Analyzing trace with hash -1883357962, now seen corresponding path program 1 times [2018-09-10 10:13:21,391 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 10:13:21,392 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:13:21,393 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:13:21,393 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:13:21,393 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 10:13:21,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:13:21,619 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 10:13:21,620 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 10:13:21,620 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 10:13:21,631 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:13:21,631 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 10:13:21,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:13:21,662 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 10:13:21,720 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 10:13:21,721 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 10:13:21,827 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 10:13:21,849 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 10:13:21,849 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 10:13:21,867 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:13:21,867 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 10:13:21,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:13:21,889 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 10:13:21,914 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 10:13:21,915 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 10:13:21,930 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 10:13:21,935 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-10 10:13:21,936 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4, 4, 4] total 6 [2018-09-10 10:13:21,936 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-10 10:13:21,936 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-10 10:13:21,937 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-10 10:13:21,937 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-10 10:13:21,938 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand 4 states. [2018-09-10 10:13:22,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 10:13:22,030 INFO L93 Difference]: Finished difference Result 21 states and 21 transitions. [2018-09-10 10:13:22,032 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-10 10:13:22,032 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2018-09-10 10:13:22,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 10:13:22,033 INFO L225 Difference]: With dead ends: 21 [2018-09-10 10:13:22,033 INFO L226 Difference]: Without dead ends: 16 [2018-09-10 10:13:22,034 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 48 SyntacticMatches, 3 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-10 10:13:22,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2018-09-10 10:13:22,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2018-09-10 10:13:22,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2018-09-10 10:13:22,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2018-09-10 10:13:22,039 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 13 [2018-09-10 10:13:22,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 10:13:22,041 INFO L480 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2018-09-10 10:13:22,041 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-10 10:13:22,041 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2018-09-10 10:13:22,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-09-10 10:13:22,041 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 10:13:22,042 INFO L376 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 10:13:22,042 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_acceleration_simple_true_unreach_call__i____VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 10:13:22,042 INFO L82 PathProgramCache]: Analyzing trace with hash -387592612, now seen corresponding path program 2 times [2018-09-10 10:13:22,042 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 10:13:22,043 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:13:22,043 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:13:22,044 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:13:22,044 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 10:13:22,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:13:22,271 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 10:13:22,272 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 10:13:22,272 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 10:13:22,286 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-09-10 10:13:22,286 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST1 (IT: FPandBP) [2018-09-10 10:13:22,306 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2018-09-10 10:13:22,306 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-10 10:13:22,308 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 10:13:22,569 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-09-10 10:13:22,569 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 10:13:22,690 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-09-10 10:13:22,712 INFO L313 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-09-10 10:13:22,713 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [5] total 11 [2018-09-10 10:13:22,713 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 10:13:22,713 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-10 10:13:22,713 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-10 10:13:22,714 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2018-09-10 10:13:22,714 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand 5 states. [2018-09-10 10:13:22,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 10:13:22,780 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2018-09-10 10:13:22,780 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-09-10 10:13:22,780 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2018-09-10 10:13:22,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 10:13:22,781 INFO L225 Difference]: With dead ends: 16 [2018-09-10 10:13:22,781 INFO L226 Difference]: Without dead ends: 0 [2018-09-10 10:13:22,782 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 25 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2018-09-10 10:13:22,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-10 10:13:22,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-10 10:13:22,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-10 10:13:22,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-10 10:13:22,783 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2018-09-10 10:13:22,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 10:13:22,784 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-10 10:13:22,784 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-10 10:13:22,784 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-10 10:13:22,784 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-10 10:13:22,789 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-10 10:13:22,835 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-09-10 10:13:22,836 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-09-10 10:13:22,836 INFO L426 ceAbstractionStarter]: For program point L3-2(lines 2 7) no Hoare annotation was computed. [2018-09-10 10:13:22,836 INFO L426 ceAbstractionStarter]: For program point __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_acceleration_simple_true_unreach_call__i____VERIFIER_assertEXIT(lines 2 7) no Hoare annotation was computed. [2018-09-10 10:13:22,836 INFO L429 ceAbstractionStarter]: At program point __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_acceleration_simple_true_unreach_call__i____VERIFIER_assertENTRY(lines 2 7) the Hoare annotation is: true [2018-09-10 10:13:22,836 INFO L426 ceAbstractionStarter]: For program point __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_acceleration_simple_true_unreach_call__i____VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2018-09-10 10:13:22,837 INFO L426 ceAbstractionStarter]: For program point L4(line 4) no Hoare annotation was computed. [2018-09-10 10:13:22,837 INFO L426 ceAbstractionStarter]: For program point L3(lines 3 5) no Hoare annotation was computed. [2018-09-10 10:13:22,837 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-09-10 10:13:22,837 INFO L429 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-09-10 10:13:22,837 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-09-10 10:13:22,837 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-09-10 10:13:22,837 INFO L429 ceAbstractionStarter]: At program point mainENTRY(lines 8 14) the Hoare annotation is: true [2018-09-10 10:13:22,838 INFO L426 ceAbstractionStarter]: For program point mainEXIT(lines 8 14) no Hoare annotation was computed. [2018-09-10 10:13:22,838 INFO L426 ceAbstractionStarter]: For program point mainFINAL(lines 8 14) no Hoare annotation was computed. [2018-09-10 10:13:22,838 INFO L426 ceAbstractionStarter]: For program point L10-1(lines 10 12) no Hoare annotation was computed. [2018-09-10 10:13:22,838 INFO L429 ceAbstractionStarter]: At program point L10-3(lines 10 12) the Hoare annotation is: true [2018-09-10 10:13:22,838 INFO L422 ceAbstractionStarter]: At program point L10-4(lines 10 12) the Hoare annotation is: (<= (mod main_~x~0 4294967296) 0) [2018-09-10 10:13:22,843 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 10:13:22 BoogieIcfgContainer [2018-09-10 10:13:22,843 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-10 10:13:22,844 INFO L168 Benchmark]: Toolchain (without parser) took 2641.34 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 742.9 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -683.5 MB). Peak memory consumption was 59.4 MB. Max. memory is 7.1 GB. [2018-09-10 10:13:22,846 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. [2018-09-10 10:13:22,847 INFO L168 Benchmark]: CACSL2BoogieTranslator took 304.37 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-09-10 10:13:22,848 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.76 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-10 10:13:22,849 INFO L168 Benchmark]: Boogie Preprocessor took 27.41 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-10 10:13:22,849 INFO L168 Benchmark]: RCFGBuilder took 319.46 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 742.9 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -793.2 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. [2018-09-10 10:13:22,850 INFO L168 Benchmark]: TraceAbstraction took 1958.59 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 99.1 MB). Peak memory consumption was 99.1 MB. Max. memory is 7.1 GB. [2018-09-10 10:13:22,855 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 304.37 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 24.76 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 27.41 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 319.46 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 742.9 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -793.2 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1958.59 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 99.1 MB). Peak memory consumption was 99.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: 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: 10]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 18 locations, 1 error locations. SAFE Result, 1.8s OverallTime, 4 OverallIterations, 3 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 50 SDtfs, 1 SDslu, 50 SDs, 0 SdLazy, 15 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 97 GetRequests, 77 SyntacticMatches, 5 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred 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, 10 PreInvPairs, 13 NumberOfFragments, 11 HoareAnnotationTreeSize, 10 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 90 NumberOfCodeBlocks, 86 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 121 ConstructedInterpolants, 0 QuantifiedInterpolants, 3709 SizeOfPredicates, 5 NumberOfNonLiveVariables, 77 ConjunctsInSsa, 17 ConjunctsInUnsatCore, 10 InterpolantComputations, 4 PerfectInterpolantSequences, 12/28 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/simple_true-unreach-call4.i_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-10_10-13-22-869.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/simple_true-unreach-call4.i_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-10_10-13-22-869.csv Received shutdown request...