java -Xmx8000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --generate-csv --csv-dir csv -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-old.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label20_false-unreach-call_false-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dd2f093 [2018-07-23 18:20:37,395 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-23 18:20:37,398 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-23 18:20:37,411 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-23 18:20:37,411 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-23 18:20:37,412 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-23 18:20:37,413 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-23 18:20:37,415 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-23 18:20:37,417 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-23 18:20:37,418 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-23 18:20:37,419 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-23 18:20:37,419 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-23 18:20:37,420 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-23 18:20:37,421 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-23 18:20:37,422 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-23 18:20:37,423 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-23 18:20:37,424 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-23 18:20:37,426 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-23 18:20:37,428 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-23 18:20:37,432 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-23 18:20:37,434 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-23 18:20:37,435 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-23 18:20:37,441 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-23 18:20:37,441 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-23 18:20:37,441 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-23 18:20:37,442 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-23 18:20:37,447 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-23 18:20:37,451 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-23 18:20:37,452 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-23 18:20:37,453 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-23 18:20:37,453 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-23 18:20:37,456 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-07-23 18:20:37,460 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-old.epf [2018-07-23 18:20:37,490 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-23 18:20:37,491 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-23 18:20:37,492 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-23 18:20:37,493 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-23 18:20:37,493 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-23 18:20:37,493 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-23 18:20:37,493 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-23 18:20:37,493 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-23 18:20:37,494 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-23 18:20:37,494 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-23 18:20:37,494 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-23 18:20:37,495 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-23 18:20:37,495 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-23 18:20:37,495 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-23 18:20:37,496 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-23 18:20:37,496 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-23 18:20:37,496 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-23 18:20:37,497 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-23 18:20:37,497 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-23 18:20:37,498 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-23 18:20:37,498 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-23 18:20:37,498 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-23 18:20:37,498 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-23 18:20:37,499 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-23 18:20:37,499 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-23 18:20:37,499 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-23 18:20:37,499 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-23 18:20:37,500 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-07-23 18:20:37,500 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-23 18:20:37,500 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-23 18:20:37,500 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-23 18:20:37,500 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-23 18:20:37,501 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-23 18:20:37,564 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-23 18:20:37,581 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-23 18:20:37,586 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-23 18:20:37,588 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-23 18:20:37,589 INFO L276 PluginConnector]: CDTParser initialized [2018-07-23 18:20:37,590 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label20_false-unreach-call_false-termination.c [2018-07-23 18:20:37,955 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cf53068a4/3d031d12e62048938259654d65dd6e2c/FLAG0cedfd0fb [2018-07-23 18:20:38,245 INFO L276 CDTParser]: Found 1 translation units. [2018-07-23 18:20:38,249 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label20_false-unreach-call_false-termination.c [2018-07-23 18:20:38,263 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cf53068a4/3d031d12e62048938259654d65dd6e2c/FLAG0cedfd0fb [2018-07-23 18:20:38,279 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cf53068a4/3d031d12e62048938259654d65dd6e2c [2018-07-23 18:20:38,290 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-23 18:20:38,292 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-23 18:20:38,293 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-23 18:20:38,293 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-23 18:20:38,300 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-23 18:20:38,301 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 06:20:38" (1/1) ... [2018-07-23 18:20:38,304 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@658546c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 06:20:38, skipping insertion in model container [2018-07-23 18:20:38,304 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 06:20:38" (1/1) ... [2018-07-23 18:20:38,568 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-23 18:20:38,883 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-23 18:20:38,911 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-23 18:20:39,035 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-23 18:20:39,081 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 06:20:39 WrapperNode [2018-07-23 18:20:39,081 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-23 18:20:39,082 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-23 18:20:39,082 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-23 18:20:39,082 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-23 18:20:39,094 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 06:20:39" (1/1) ... [2018-07-23 18:20:39,123 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 06:20:39" (1/1) ... [2018-07-23 18:20:39,198 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-23 18:20:39,198 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-23 18:20:39,199 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-23 18:20:39,199 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-23 18:20:39,209 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 06:20:39" (1/1) ... [2018-07-23 18:20:39,210 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 06:20:39" (1/1) ... [2018-07-23 18:20:39,216 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 06:20:39" (1/1) ... [2018-07-23 18:20:39,216 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 06:20:39" (1/1) ... [2018-07-23 18:20:39,381 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 06:20:39" (1/1) ... [2018-07-23 18:20:39,394 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 06:20:39" (1/1) ... [2018-07-23 18:20:39,399 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 06:20:39" (1/1) ... [2018-07-23 18:20:39,406 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-23 18:20:39,407 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-23 18:20:39,407 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-23 18:20:39,407 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-23 18:20:39,408 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 06:20:39" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-23 18:20:39,488 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-23 18:20:39,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-23 18:20:39,489 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-23 18:20:39,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-23 18:20:39,489 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-23 18:20:39,489 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-23 18:20:39,490 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_false_termination_c__calculate_output [2018-07-23 18:20:39,490 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_false_termination_c__calculate_output [2018-07-23 18:20:42,818 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-23 18:20:42,819 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 06:20:42 BoogieIcfgContainer [2018-07-23 18:20:42,819 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-23 18:20:42,820 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-23 18:20:42,820 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-23 18:20:42,823 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-23 18:20:42,824 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.07 06:20:38" (1/3) ... [2018-07-23 18:20:42,825 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@497b29fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 06:20:42, skipping insertion in model container [2018-07-23 18:20:42,825 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 06:20:39" (2/3) ... [2018-07-23 18:20:42,825 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@497b29fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 06:20:42, skipping insertion in model container [2018-07-23 18:20:42,826 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 06:20:42" (3/3) ... [2018-07-23 18:20:42,827 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem01_label20_false-unreach-call_false-termination.c [2018-07-23 18:20:42,838 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-23 18:20:42,846 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-23 18:20:42,896 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-23 18:20:42,897 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-23 18:20:42,897 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-23 18:20:42,898 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-23 18:20:42,898 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-23 18:20:42,898 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-23 18:20:42,898 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-23 18:20:42,898 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-23 18:20:42,899 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-23 18:20:42,924 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states. [2018-07-23 18:20:42,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2018-07-23 18:20:42,934 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 18:20:42,936 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 18:20:42,936 INFO L414 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_false_termination_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 18:20:42,942 INFO L82 PathProgramCache]: Analyzing trace with hash -514819515, now seen corresponding path program 1 times [2018-07-23 18:20:42,944 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 18:20:42,998 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 18:20:42,998 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 18:20:42,998 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 18:20:42,998 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 18:20:43,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 18:20:43,544 WARN L169 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-23 18:20:43,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 18:20:43,672 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 18:20:43,672 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-23 18:20:43,672 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 18:20:43,678 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-23 18:20:43,697 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-23 18:20:43,698 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-23 18:20:43,701 INFO L87 Difference]: Start difference. First operand 208 states. Second operand 3 states. [2018-07-23 18:20:45,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 18:20:45,366 INFO L93 Difference]: Finished difference Result 550 states and 941 transitions. [2018-07-23 18:20:45,367 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-23 18:20:45,368 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 79 [2018-07-23 18:20:45,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 18:20:45,390 INFO L225 Difference]: With dead ends: 550 [2018-07-23 18:20:45,390 INFO L226 Difference]: Without dead ends: 340 [2018-07-23 18:20:45,396 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-23 18:20:45,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2018-07-23 18:20:45,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 340. [2018-07-23 18:20:45,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 340 states. [2018-07-23 18:20:45,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 562 transitions. [2018-07-23 18:20:45,475 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 562 transitions. Word has length 79 [2018-07-23 18:20:45,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 18:20:45,476 INFO L471 AbstractCegarLoop]: Abstraction has 340 states and 562 transitions. [2018-07-23 18:20:45,476 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-23 18:20:45,476 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 562 transitions. [2018-07-23 18:20:45,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2018-07-23 18:20:45,481 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 18:20:45,481 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 18:20:45,482 INFO L414 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_false_termination_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 18:20:45,482 INFO L82 PathProgramCache]: Analyzing trace with hash -1511320978, now seen corresponding path program 1 times [2018-07-23 18:20:45,482 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 18:20:45,484 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 18:20:45,484 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 18:20:45,485 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 18:20:45,485 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 18:20:45,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 18:20:45,668 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 18:20:45,668 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 18:20:45,669 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-23 18:20:45,669 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 18:20:45,671 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-23 18:20:45,671 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-23 18:20:45,671 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-23 18:20:45,672 INFO L87 Difference]: Start difference. First operand 340 states and 562 transitions. Second operand 6 states. [2018-07-23 18:20:47,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 18:20:47,768 INFO L93 Difference]: Finished difference Result 888 states and 1491 transitions. [2018-07-23 18:20:47,769 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-23 18:20:47,769 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 90 [2018-07-23 18:20:47,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 18:20:47,778 INFO L225 Difference]: With dead ends: 888 [2018-07-23 18:20:47,779 INFO L226 Difference]: Without dead ends: 554 [2018-07-23 18:20:47,782 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-07-23 18:20:47,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2018-07-23 18:20:47,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 539. [2018-07-23 18:20:47,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 539 states. [2018-07-23 18:20:47,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 827 transitions. [2018-07-23 18:20:47,821 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 827 transitions. Word has length 90 [2018-07-23 18:20:47,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 18:20:47,822 INFO L471 AbstractCegarLoop]: Abstraction has 539 states and 827 transitions. [2018-07-23 18:20:47,822 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-23 18:20:47,822 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 827 transitions. [2018-07-23 18:20:47,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2018-07-23 18:20:47,825 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 18:20:47,825 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 18:20:47,825 INFO L414 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_false_termination_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 18:20:47,826 INFO L82 PathProgramCache]: Analyzing trace with hash -506213454, now seen corresponding path program 1 times [2018-07-23 18:20:47,826 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 18:20:47,827 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 18:20:47,827 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 18:20:47,827 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 18:20:47,827 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 18:20:47,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 18:20:48,076 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 18:20:48,076 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 18:20:48,077 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-23 18:20:48,077 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 18:20:48,077 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-23 18:20:48,078 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-23 18:20:48,078 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-23 18:20:48,078 INFO L87 Difference]: Start difference. First operand 539 states and 827 transitions. Second operand 3 states. [2018-07-23 18:20:49,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 18:20:49,302 INFO L93 Difference]: Finished difference Result 1529 states and 2431 transitions. [2018-07-23 18:20:49,306 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-23 18:20:49,306 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 91 [2018-07-23 18:20:49,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 18:20:49,314 INFO L225 Difference]: With dead ends: 1529 [2018-07-23 18:20:49,314 INFO L226 Difference]: Without dead ends: 996 [2018-07-23 18:20:49,317 INFO L573 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 [2018-07-23 18:20:49,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 996 states. [2018-07-23 18:20:49,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 996 to 989. [2018-07-23 18:20:49,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 989 states. [2018-07-23 18:20:49,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 989 states to 989 states and 1498 transitions. [2018-07-23 18:20:49,364 INFO L78 Accepts]: Start accepts. Automaton has 989 states and 1498 transitions. Word has length 91 [2018-07-23 18:20:49,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 18:20:49,364 INFO L471 AbstractCegarLoop]: Abstraction has 989 states and 1498 transitions. [2018-07-23 18:20:49,365 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-23 18:20:49,365 INFO L276 IsEmpty]: Start isEmpty. Operand 989 states and 1498 transitions. [2018-07-23 18:20:49,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2018-07-23 18:20:49,370 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 18:20:49,370 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 18:20:49,371 INFO L414 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_false_termination_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 18:20:49,371 INFO L82 PathProgramCache]: Analyzing trace with hash -954244674, now seen corresponding path program 1 times [2018-07-23 18:20:49,371 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 18:20:49,372 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 18:20:49,374 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 18:20:49,374 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 18:20:49,375 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 18:20:49,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 18:20:49,638 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 18:20:49,639 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 18:20:49,639 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-23 18:20:49,639 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 18:20:49,639 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-23 18:20:49,640 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-23 18:20:49,640 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-23 18:20:49,640 INFO L87 Difference]: Start difference. First operand 989 states and 1498 transitions. Second operand 3 states. [2018-07-23 18:20:52,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 18:20:52,577 INFO L93 Difference]: Finished difference Result 2868 states and 4525 transitions. [2018-07-23 18:20:52,577 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-23 18:20:52,577 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 97 [2018-07-23 18:20:52,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 18:20:52,593 INFO L225 Difference]: With dead ends: 2868 [2018-07-23 18:20:52,594 INFO L226 Difference]: Without dead ends: 1885 [2018-07-23 18:20:52,600 INFO L573 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 [2018-07-23 18:20:52,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1885 states. [2018-07-23 18:20:52,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1885 to 1881. [2018-07-23 18:20:52,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1881 states. [2018-07-23 18:20:52,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1881 states to 1881 states and 2822 transitions. [2018-07-23 18:20:52,688 INFO L78 Accepts]: Start accepts. Automaton has 1881 states and 2822 transitions. Word has length 97 [2018-07-23 18:20:52,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 18:20:52,689 INFO L471 AbstractCegarLoop]: Abstraction has 1881 states and 2822 transitions. [2018-07-23 18:20:52,689 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-23 18:20:52,690 INFO L276 IsEmpty]: Start isEmpty. Operand 1881 states and 2822 transitions. [2018-07-23 18:20:52,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2018-07-23 18:20:52,699 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 18:20:52,699 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 18:20:52,699 INFO L414 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_false_termination_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 18:20:52,700 INFO L82 PathProgramCache]: Analyzing trace with hash -628028978, now seen corresponding path program 1 times [2018-07-23 18:20:52,700 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 18:20:52,702 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 18:20:52,702 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 18:20:52,702 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 18:20:52,703 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 18:20:52,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 18:20:52,986 WARN L169 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-23 18:20:53,380 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 18:20:53,380 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 18:20:53,381 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-23 18:20:53,381 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 18:20:53,381 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-23 18:20:53,382 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-23 18:20:53,382 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-23 18:20:53,382 INFO L87 Difference]: Start difference. First operand 1881 states and 2822 transitions. Second operand 6 states. [2018-07-23 18:20:55,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 18:20:55,541 INFO L93 Difference]: Finished difference Result 5564 states and 8970 transitions. [2018-07-23 18:20:55,543 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-23 18:20:55,544 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 105 [2018-07-23 18:20:55,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 18:20:55,574 INFO L225 Difference]: With dead ends: 5564 [2018-07-23 18:20:55,575 INFO L226 Difference]: Without dead ends: 3689 [2018-07-23 18:20:55,592 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-07-23 18:20:55,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3689 states. [2018-07-23 18:20:55,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3689 to 3602. [2018-07-23 18:20:55,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3602 states. [2018-07-23 18:20:55,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3602 states to 3602 states and 5100 transitions. [2018-07-23 18:20:55,750 INFO L78 Accepts]: Start accepts. Automaton has 3602 states and 5100 transitions. Word has length 105 [2018-07-23 18:20:55,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 18:20:55,751 INFO L471 AbstractCegarLoop]: Abstraction has 3602 states and 5100 transitions. [2018-07-23 18:20:55,751 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-23 18:20:55,751 INFO L276 IsEmpty]: Start isEmpty. Operand 3602 states and 5100 transitions. [2018-07-23 18:20:55,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2018-07-23 18:20:55,759 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 18:20:55,759 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 18:20:55,759 INFO L414 AbstractCegarLoop]: === Iteration 6 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_false_termination_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 18:20:55,760 INFO L82 PathProgramCache]: Analyzing trace with hash -865881634, now seen corresponding path program 1 times [2018-07-23 18:20:55,760 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 18:20:55,761 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 18:20:55,761 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 18:20:55,761 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 18:20:55,761 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 18:20:55,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 18:20:55,962 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-07-23 18:20:55,963 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 18:20:55,963 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-23 18:20:55,964 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 114 with the following transitions: [2018-07-23 18:20:55,966 INFO L201 CegarAbsIntRunner]: [0], [1], [5], [9], [15], [19], [21], [26], [30], [34], [38], [42], [46], [50], [54], [58], [62], [66], [70], [74], [78], [82], [86], [90], [94], [98], [102], [106], [110], [114], [118], [122], [126], [129], [130], [134], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [270], [274], [278], [282], [286], [290], [293], [295], [781], [782], [783], [784], [786], [787] [2018-07-23 18:20:56,040 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-23 18:20:56,040 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-23 18:21:16,687 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-07-23 18:21:16,689 INFO L272 AbstractInterpreter]: Visited 68 different actions 68 times. Never merged. Never widened. Never found a fixpoint. Largest state had 42 variables. [2018-07-23 18:21:16,699 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-07-23 18:21:20,482 INFO L232 lantSequenceWeakener]: Weakened 97 states. On average, predicates are now at 79.78% of their original sizes. [2018-07-23 18:21:20,482 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-07-23 18:21:21,989 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-07-23 18:21:21,990 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-23 18:21:21,991 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [4] total 14 [2018-07-23 18:21:21,991 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 18:21:21,991 INFO L450 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-07-23 18:21:21,992 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-07-23 18:21:21,992 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2018-07-23 18:21:21,992 INFO L87 Difference]: Start difference. First operand 3602 states and 5100 transitions. Second operand 12 states. [2018-07-23 18:21:34,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 18:21:34,142 INFO L93 Difference]: Finished difference Result 7259 states and 10287 transitions. [2018-07-23 18:21:34,142 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-07-23 18:21:34,142 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 113 [2018-07-23 18:21:34,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 18:21:34,164 INFO L225 Difference]: With dead ends: 7259 [2018-07-23 18:21:34,165 INFO L226 Difference]: Without dead ends: 3663 [2018-07-23 18:21:34,182 INFO L573 BasicCegarLoop]: 2 DeclaredPredicates, 118 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=106, Invalid=200, Unknown=0, NotChecked=0, Total=306 [2018-07-23 18:21:34,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3663 states. [2018-07-23 18:21:34,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3663 to 3663. [2018-07-23 18:21:34,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3663 states. [2018-07-23 18:21:34,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3663 states to 3663 states and 5170 transitions. [2018-07-23 18:21:34,315 INFO L78 Accepts]: Start accepts. Automaton has 3663 states and 5170 transitions. Word has length 113 [2018-07-23 18:21:34,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 18:21:34,316 INFO L471 AbstractCegarLoop]: Abstraction has 3663 states and 5170 transitions. [2018-07-23 18:21:34,316 INFO L472 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-07-23 18:21:34,316 INFO L276 IsEmpty]: Start isEmpty. Operand 3663 states and 5170 transitions. [2018-07-23 18:21:34,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2018-07-23 18:21:34,324 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 18:21:34,324 INFO L353 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 18:21:34,324 INFO L414 AbstractCegarLoop]: === Iteration 7 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_false_termination_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 18:21:34,325 INFO L82 PathProgramCache]: Analyzing trace with hash 2066038011, now seen corresponding path program 1 times [2018-07-23 18:21:34,325 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 18:21:34,330 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 18:21:34,330 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 18:21:34,330 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 18:21:34,330 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 18:21:34,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 18:21:34,606 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 42 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 18:21:34,607 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 18:21:34,607 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-23 18:21:34,607 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 118 with the following transitions: [2018-07-23 18:21:34,608 INFO L201 CegarAbsIntRunner]: [0], [1], [5], [9], [15], [19], [21], [26], [30], [34], [38], [41], [42], [46], [50], [54], [58], [62], [66], [70], [74], [78], [82], [86], [90], [94], [97], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [270], [274], [278], [282], [286], [290], [293], [295], [781], [782], [783], [784], [786], [787] [2018-07-23 18:21:34,614 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-23 18:21:34,615 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-23 18:23:04,439 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-07-23 18:23:04,440 INFO L272 AbstractInterpreter]: Visited 83 different actions 148 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 42 variables. [2018-07-23 18:23:04,450 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-07-23 18:23:12,809 INFO L232 lantSequenceWeakener]: Weakened 115 states. On average, predicates are now at 79.91% of their original sizes. [2018-07-23 18:23:12,809 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-07-23 18:23:15,285 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-07-23 18:23:15,286 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-23 18:23:15,286 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [17] imperfect sequences [6] total 21 [2018-07-23 18:23:15,286 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 18:23:15,286 INFO L450 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-07-23 18:23:15,286 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-07-23 18:23:15,287 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=202, Unknown=0, NotChecked=0, Total=272 [2018-07-23 18:23:15,287 INFO L87 Difference]: Start difference. First operand 3663 states and 5170 transitions. Second operand 17 states. [2018-07-23 18:23:53,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 18:23:53,183 INFO L93 Difference]: Finished difference Result 7445 states and 10537 transitions. [2018-07-23 18:23:53,183 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-07-23 18:23:53,183 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 117 [2018-07-23 18:23:53,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 18:23:53,203 INFO L225 Difference]: With dead ends: 7445 [2018-07-23 18:23:53,203 INFO L226 Difference]: Without dead ends: 3660 [2018-07-23 18:23:53,219 INFO L573 BasicCegarLoop]: 2 DeclaredPredicates, 132 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=226, Invalid=830, Unknown=0, NotChecked=0, Total=1056 [2018-07-23 18:23:53,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3660 states. [2018-07-23 18:23:53,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3660 to 3660. [2018-07-23 18:23:53,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3660 states. [2018-07-23 18:23:53,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3660 states to 3660 states and 4969 transitions. [2018-07-23 18:23:53,335 INFO L78 Accepts]: Start accepts. Automaton has 3660 states and 4969 transitions. Word has length 117 [2018-07-23 18:23:53,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 18:23:53,335 INFO L471 AbstractCegarLoop]: Abstraction has 3660 states and 4969 transitions. [2018-07-23 18:23:53,335 INFO L472 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-07-23 18:23:53,336 INFO L276 IsEmpty]: Start isEmpty. Operand 3660 states and 4969 transitions. [2018-07-23 18:23:53,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2018-07-23 18:23:53,342 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 18:23:53,342 INFO L353 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 18:23:53,343 INFO L414 AbstractCegarLoop]: === Iteration 8 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_false_termination_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 18:23:53,343 INFO L82 PathProgramCache]: Analyzing trace with hash -1698468285, now seen corresponding path program 1 times [2018-07-23 18:23:53,343 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 18:23:53,344 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 18:23:53,344 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 18:23:53,344 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 18:23:53,345 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 18:23:53,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 18:23:53,896 WARN L169 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2018-07-23 18:23:54,063 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 44 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 18:23:54,064 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 18:23:54,064 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-23 18:23:54,064 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 123 with the following transitions: [2018-07-23 18:23:54,064 INFO L201 CegarAbsIntRunner]: [0], [1], [5], [9], [15], [19], [21], [26], [29], [30], [34], [38], [42], [46], [50], [54], [58], [62], [66], [70], [74], [78], [82], [86], [90], [94], [98], [102], [106], [110], [114], [118], [122], [126], [129], [130], [134], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [270], [274], [278], [282], [286], [290], [293], [295], [781], [782], [783], [784], [786], [787] [2018-07-23 18:23:54,069 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-23 18:23:54,069 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) Received shutdown request... [2018-07-23 18:24:54,770 WARN L571 FixpointEngine]: Received timeout, aborting fixpoint engine [2018-07-23 18:24:54,771 WARN L158 AbstractInterpreter]: Abstract interpretation run out of time [2018-07-23 18:24:54,772 INFO L419 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-07-23 18:24:54,772 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 18:24:54,772 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 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 [2018-07-23 18:24:54,783 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 18:24:54,783 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-23 18:24:54,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 18:24:54,903 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-23 18:24:54,939 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2018-07-23 18:24:55,140 WARN L512 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-23 18:24:55,141 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-23 18:24:55,146 WARN L202 ceAbstractionStarter]: Timeout [2018-07-23 18:24:55,147 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.07 06:24:55 BoogieIcfgContainer [2018-07-23 18:24:55,147 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-23 18:24:55,148 INFO L168 Benchmark]: Toolchain (without parser) took 256856.82 ms. Allocated memory was 1.5 GB in the beginning and 3.2 GB in the end (delta: 1.6 GB). Free memory was 1.4 GB in the beginning and 3.0 GB in the end (delta: -1.6 GB). Peak memory consumption was 78.3 MB. Max. memory is 7.1 GB. [2018-07-23 18:24:55,149 INFO L168 Benchmark]: CDTParser took 0.24 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. [2018-07-23 18:24:55,150 INFO L168 Benchmark]: CACSL2BoogieTranslator took 788.14 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: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-07-23 18:24:55,150 INFO L168 Benchmark]: Boogie Procedure Inliner took 116.30 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-07-23 18:24:55,151 INFO L168 Benchmark]: Boogie Preprocessor took 208.23 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 760.2 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -845.7 MB). Peak memory consumption was 26.0 MB. Max. memory is 7.1 GB. [2018-07-23 18:24:55,152 INFO L168 Benchmark]: RCFGBuilder took 3411.99 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: 120.0 MB). Peak memory consumption was 120.0 MB. Max. memory is 7.1 GB. [2018-07-23 18:24:55,153 INFO L168 Benchmark]: TraceAbstraction took 252327.17 ms. Allocated memory was 2.3 GB in the beginning and 3.2 GB in the end (delta: 888.1 MB). Free memory was 2.1 GB in the beginning and 3.0 GB in the end (delta: -886.6 MB). Peak memory consumption was 1.5 MB. Max. memory is 7.1 GB. [2018-07-23 18:24:55,157 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 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 788.14 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: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 116.30 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 Preprocessor took 208.23 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 760.2 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -845.7 MB). Peak memory consumption was 26.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 3411.99 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: 120.0 MB). Peak memory consumption was 120.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 252327.17 ms. Allocated memory was 2.3 GB in the beginning and 3.2 GB in the end (delta: 888.1 MB). Free memory was 2.1 GB in the beginning and 3.0 GB in the end (delta: -886.6 MB). Peak memory consumption was 1.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 392]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 392). Cancelled while BasicCegarLoop was analyzing trace of length 123 with TraceHistMax 3, while TraceCheckSpWp was constructing forward predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 7 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 208 locations, 1 error locations. TIMEOUT Result, 252.2s OverallTime, 8 OverallIterations, 3 TraceHistogramMax, 60.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1088 SDtfs, 3138 SDslu, 948 SDs, 0 SdLazy, 4568 SolverSat, 930 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 20.1s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 284 GetRequests, 214 SyntacticMatches, 6 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 228 ImplicationChecksByTransitivity, 7.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3663occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 171.2s AbstIntTime, 3 AbstIntIterations, 2 AbstIntStrong, 0.9930822992440451 AbsIntWeakeningRatio, 0.2807017543859649 AbsIntAvgWeakeningVarsNumRemoved, 1376.6315789473683 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 7 MinimizatonAttempts, 113 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 692 NumberOfCodeBlocks, 692 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 685 ConstructedInterpolants, 0 QuantifiedInterpolants, 181427 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 5 PerfectInterpolantSequences, 101/130 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem01_label20_false-unreach-call_false-termination.c_svcomp-Reach-64bit-Taipan_Default-old.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-23_18-24-55-171.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem01_label20_false-unreach-call_false-termination.c_svcomp-Reach-64bit-Taipan_Default-old.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-23_18-24-55-171.csv Completed graceful shutdown