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/Problem14_label19_true-unreach-call_false-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dd2f093 [2018-07-23 22:30:10,668 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-23 22:30:10,670 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-23 22:30:10,687 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-23 22:30:10,688 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-23 22:30:10,689 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-23 22:30:10,690 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-23 22:30:10,692 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-23 22:30:10,695 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-23 22:30:10,702 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-23 22:30:10,703 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-23 22:30:10,705 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-23 22:30:10,706 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-23 22:30:10,707 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-23 22:30:10,708 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-23 22:30:10,710 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-23 22:30:10,713 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-23 22:30:10,714 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-23 22:30:10,716 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-23 22:30:10,721 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-23 22:30:10,723 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-23 22:30:10,726 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-23 22:30:10,729 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-07-23 22:30:10,741 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 22:30:10,765 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-23 22:30:10,766 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-23 22:30:10,767 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-23 22:30:10,767 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-23 22:30:10,768 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-23 22:30:10,768 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-23 22:30:10,768 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-23 22:30:10,768 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-23 22:30:10,768 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-23 22:30:10,769 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-23 22:30:10,769 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-23 22:30:10,770 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-23 22:30:10,770 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-23 22:30:10,770 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-23 22:30:10,770 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-23 22:30:10,771 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-23 22:30:10,771 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-23 22:30:10,771 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-23 22:30:10,771 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-23 22:30:10,771 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-23 22:30:10,772 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-23 22:30:10,772 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-23 22:30:10,772 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-23 22:30:10,772 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-23 22:30:10,774 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-23 22:30:10,774 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-23 22:30:10,774 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-23 22:30:10,775 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-07-23 22:30:10,775 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-23 22:30:10,775 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-23 22:30:10,775 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-23 22:30:10,775 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-23 22:30:10,776 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-23 22:30:10,829 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-23 22:30:10,845 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-23 22:30:10,851 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-23 22:30:10,852 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-23 22:30:10,853 INFO L276 PluginConnector]: CDTParser initialized [2018-07-23 22:30:10,853 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label19_true-unreach-call_false-termination.c [2018-07-23 22:30:11,185 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc6991e61/63ced9b44ead4828932f96b5392f8c99/FLAG610ad377b [2018-07-23 22:30:11,445 INFO L276 CDTParser]: Found 1 translation units. [2018-07-23 22:30:11,447 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem14_label19_true-unreach-call_false-termination.c [2018-07-23 22:30:11,474 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc6991e61/63ced9b44ead4828932f96b5392f8c99/FLAG610ad377b [2018-07-23 22:30:11,494 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc6991e61/63ced9b44ead4828932f96b5392f8c99 [2018-07-23 22:30:11,507 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-23 22:30:11,509 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-23 22:30:11,510 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-23 22:30:11,510 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-23 22:30:11,519 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-23 22:30:11,520 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 10:30:11" (1/1) ... [2018-07-23 22:30:11,524 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c0fc1a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 10:30:11, skipping insertion in model container [2018-07-23 22:30:11,524 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 10:30:11" (1/1) ... [2018-07-23 22:30:11,750 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-23 22:30:12,036 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-23 22:30:12,053 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-23 22:30:12,170 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-23 22:30:12,235 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 10:30:12 WrapperNode [2018-07-23 22:30:12,235 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-23 22:30:12,236 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-23 22:30:12,236 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-23 22:30:12,237 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-23 22:30:12,246 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 10:30:12" (1/1) ... [2018-07-23 22:30:12,286 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 10:30:12" (1/1) ... [2018-07-23 22:30:12,377 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-23 22:30:12,378 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-23 22:30:12,378 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-23 22:30:12,378 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-23 22:30:12,389 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 10:30:12" (1/1) ... [2018-07-23 22:30:12,389 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 10:30:12" (1/1) ... [2018-07-23 22:30:12,394 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 10:30:12" (1/1) ... [2018-07-23 22:30:12,394 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 10:30:12" (1/1) ... [2018-07-23 22:30:12,423 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 10:30:12" (1/1) ... [2018-07-23 22:30:12,627 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 10:30:12" (1/1) ... [2018-07-23 22:30:12,639 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 10:30:12" (1/1) ... [2018-07-23 22:30:12,655 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-23 22:30:12,656 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-23 22:30:12,656 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-23 22:30:12,656 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-23 22:30:12,657 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 10:30:12" (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 22:30:12,733 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_output [2018-07-23 22:30:12,733 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_output [2018-07-23 22:30:12,733 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-23 22:30:12,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-23 22:30:12,734 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-23 22:30:12,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-23 22:30:12,734 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-23 22:30:12,735 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-23 22:30:16,443 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-23 22:30:16,444 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 10:30:16 BoogieIcfgContainer [2018-07-23 22:30:16,445 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-23 22:30:16,446 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-23 22:30:16,446 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-23 22:30:16,454 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-23 22:30:16,455 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.07 10:30:11" (1/3) ... [2018-07-23 22:30:16,456 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@519f347e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 10:30:16, skipping insertion in model container [2018-07-23 22:30:16,456 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 10:30:12" (2/3) ... [2018-07-23 22:30:16,456 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@519f347e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 10:30:16, skipping insertion in model container [2018-07-23 22:30:16,457 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 10:30:16" (3/3) ... [2018-07-23 22:30:16,459 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem14_label19_true-unreach-call_false-termination.c [2018-07-23 22:30:16,472 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-23 22:30:16,481 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-23 22:30:16,535 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-23 22:30:16,536 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-23 22:30:16,536 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-23 22:30:16,537 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-23 22:30:16,537 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-23 22:30:16,537 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-23 22:30:16,537 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-23 22:30:16,537 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-23 22:30:16,538 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-23 22:30:16,564 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states. [2018-07-23 22:30:16,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2018-07-23 22:30:16,579 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 22:30:16,580 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] [2018-07-23 22:30:16,581 INFO L414 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 22:30:16,585 INFO L82 PathProgramCache]: Analyzing trace with hash -989516953, now seen corresponding path program 1 times [2018-07-23 22:30:16,587 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 22:30:16,636 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 22:30:16,636 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 22:30:16,636 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 22:30:16,636 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 22:30:16,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 22:30:17,038 WARN L169 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-23 22:30:17,150 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 22:30:17,153 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 22:30:17,153 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-23 22:30:17,153 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 22:30:17,159 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-23 22:30:17,176 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-23 22:30:17,177 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-23 22:30:17,179 INFO L87 Difference]: Start difference. First operand 255 states. Second operand 3 states. [2018-07-23 22:30:19,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 22:30:19,122 INFO L93 Difference]: Finished difference Result 691 states and 1226 transitions. [2018-07-23 22:30:19,124 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-23 22:30:19,125 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 69 [2018-07-23 22:30:19,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 22:30:19,146 INFO L225 Difference]: With dead ends: 691 [2018-07-23 22:30:19,146 INFO L226 Difference]: Without dead ends: 434 [2018-07-23 22:30:19,155 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 22:30:19,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2018-07-23 22:30:19,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 434. [2018-07-23 22:30:19,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 434 states. [2018-07-23 22:30:19,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 765 transitions. [2018-07-23 22:30:19,254 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 765 transitions. Word has length 69 [2018-07-23 22:30:19,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 22:30:19,255 INFO L471 AbstractCegarLoop]: Abstraction has 434 states and 765 transitions. [2018-07-23 22:30:19,255 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-23 22:30:19,255 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 765 transitions. [2018-07-23 22:30:19,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2018-07-23 22:30:19,264 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 22:30:19,264 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, 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, 2, 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 22:30:19,265 INFO L414 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 22:30:19,265 INFO L82 PathProgramCache]: Analyzing trace with hash -1933903417, now seen corresponding path program 1 times [2018-07-23 22:30:19,265 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 22:30:19,266 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 22:30:19,267 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 22:30:19,267 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 22:30:19,267 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 22:30:19,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 22:30:19,654 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 22:30:19,655 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 22:30:19,655 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-23 22:30:19,655 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 22:30:19,657 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-23 22:30:19,658 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-23 22:30:19,658 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-23 22:30:19,658 INFO L87 Difference]: Start difference. First operand 434 states and 765 transitions. Second operand 6 states. [2018-07-23 22:30:21,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 22:30:21,834 INFO L93 Difference]: Finished difference Result 1062 states and 1897 transitions. [2018-07-23 22:30:21,834 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-23 22:30:21,835 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 144 [2018-07-23 22:30:21,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 22:30:21,841 INFO L225 Difference]: With dead ends: 1062 [2018-07-23 22:30:21,841 INFO L226 Difference]: Without dead ends: 634 [2018-07-23 22:30:21,844 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 22:30:21,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 634 states. [2018-07-23 22:30:21,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 634 to 625. [2018-07-23 22:30:21,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 625 states. [2018-07-23 22:30:21,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 625 states to 625 states and 1019 transitions. [2018-07-23 22:30:21,888 INFO L78 Accepts]: Start accepts. Automaton has 625 states and 1019 transitions. Word has length 144 [2018-07-23 22:30:21,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 22:30:21,889 INFO L471 AbstractCegarLoop]: Abstraction has 625 states and 1019 transitions. [2018-07-23 22:30:21,889 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-23 22:30:21,890 INFO L276 IsEmpty]: Start isEmpty. Operand 625 states and 1019 transitions. [2018-07-23 22:30:21,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2018-07-23 22:30:21,895 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 22:30:21,898 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, 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, 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] [2018-07-23 22:30:21,898 INFO L414 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 22:30:21,898 INFO L82 PathProgramCache]: Analyzing trace with hash 622486974, now seen corresponding path program 1 times [2018-07-23 22:30:21,899 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 22:30:21,904 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 22:30:21,904 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 22:30:21,904 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 22:30:21,905 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 22:30:21,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 22:30:22,152 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 22:30:22,153 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 22:30:22,153 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-23 22:30:22,153 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 22:30:22,154 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-23 22:30:22,154 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-23 22:30:22,155 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-23 22:30:22,155 INFO L87 Difference]: Start difference. First operand 625 states and 1019 transitions. Second operand 4 states. [2018-07-23 22:30:25,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 22:30:25,785 INFO L93 Difference]: Finished difference Result 2348 states and 3999 transitions. [2018-07-23 22:30:25,794 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-23 22:30:25,795 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 153 [2018-07-23 22:30:25,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 22:30:25,808 INFO L225 Difference]: With dead ends: 2348 [2018-07-23 22:30:25,808 INFO L226 Difference]: Without dead ends: 1729 [2018-07-23 22:30:25,815 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-23 22:30:25,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1729 states. [2018-07-23 22:30:25,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1729 to 1729. [2018-07-23 22:30:25,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1729 states. [2018-07-23 22:30:25,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1729 states to 1729 states and 2669 transitions. [2018-07-23 22:30:25,888 INFO L78 Accepts]: Start accepts. Automaton has 1729 states and 2669 transitions. Word has length 153 [2018-07-23 22:30:25,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 22:30:25,889 INFO L471 AbstractCegarLoop]: Abstraction has 1729 states and 2669 transitions. [2018-07-23 22:30:25,889 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-23 22:30:25,891 INFO L276 IsEmpty]: Start isEmpty. Operand 1729 states and 2669 transitions. [2018-07-23 22:30:25,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2018-07-23 22:30:25,904 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 22:30:25,904 INFO L353 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-07-23 22:30:25,904 INFO L414 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 22:30:25,905 INFO L82 PathProgramCache]: Analyzing trace with hash -1813460485, now seen corresponding path program 1 times [2018-07-23 22:30:25,905 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 22:30:25,906 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 22:30:25,906 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 22:30:25,906 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 22:30:25,906 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 22:30:25,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 22:30:26,460 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 124 proven. 70 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-23 22:30:26,460 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 22:30:26,460 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-23 22:30:26,461 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 258 with the following transitions: [2018-07-23 22:30:26,463 INFO L201 CegarAbsIntRunner]: [0], [7], [15], [23], [31], [39], [47], [55], [63], [71], [79], [87], [95], [103], [111], [119], [127], [135], [143], [151], [159], [167], [175], [183], [191], [199], [207], [215], [223], [231], [239], [247], [255], [263], [271], [279], [287], [295], [303], [311], [319], [327], [335], [343], [351], [359], [367], [375], [383], [391], [399], [407], [415], [423], [431], [439], [447], [451], [453], [456], [464], [472], [480], [488], [493], [497], [501], [505], [509], [512], [513], [517], [521], [525], [529], [533], [537], [541], [545], [549], [553], [557], [561], [565], [569], [573], [577], [581], [585], [589], [593], [597], [601], [605], [609], [613], [617], [621], [625], [629], [633], [637], [641], [645], [649], [653], [657], [661], [664], [946], [947], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-07-23 22:30:26,531 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-23 22:30:26,532 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-23 22:30:31,988 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-07-23 22:30:31,989 INFO L272 AbstractInterpreter]: Visited 118 different actions 118 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-07-23 22:30:31,999 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-07-23 22:30:35,739 INFO L232 lantSequenceWeakener]: Weakened 249 states. On average, predicates are now at 78.28% of their original sizes. [2018-07-23 22:30:35,739 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-07-23 22:30:36,245 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-07-23 22:30:36,246 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-23 22:30:36,247 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2018-07-23 22:30:36,247 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 22:30:36,248 INFO L450 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-23 22:30:36,248 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-23 22:30:36,249 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-07-23 22:30:36,252 INFO L87 Difference]: Start difference. First operand 1729 states and 2669 transitions. Second operand 7 states. [2018-07-23 22:30:49,198 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-07-23 22:31:08,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 22:31:08,090 INFO L93 Difference]: Finished difference Result 3637 states and 5622 transitions. [2018-07-23 22:31:08,090 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-23 22:31:08,090 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 257 [2018-07-23 22:31:08,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 22:31:08,103 INFO L225 Difference]: With dead ends: 3637 [2018-07-23 22:31:08,103 INFO L226 Difference]: Without dead ends: 1914 [2018-07-23 22:31:08,111 INFO L573 BasicCegarLoop]: 2 DeclaredPredicates, 257 GetRequests, 251 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-07-23 22:31:08,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1914 states. [2018-07-23 22:31:08,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1914 to 1912. [2018-07-23 22:31:08,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1912 states. [2018-07-23 22:31:08,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1912 states to 1912 states and 2860 transitions. [2018-07-23 22:31:08,167 INFO L78 Accepts]: Start accepts. Automaton has 1912 states and 2860 transitions. Word has length 257 [2018-07-23 22:31:08,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 22:31:08,167 INFO L471 AbstractCegarLoop]: Abstraction has 1912 states and 2860 transitions. [2018-07-23 22:31:08,167 INFO L472 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-23 22:31:08,167 INFO L276 IsEmpty]: Start isEmpty. Operand 1912 states and 2860 transitions. [2018-07-23 22:31:08,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 343 [2018-07-23 22:31:08,177 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 22:31:08,177 INFO L353 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-07-23 22:31:08,178 INFO L414 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 22:31:08,178 INFO L82 PathProgramCache]: Analyzing trace with hash 125353423, now seen corresponding path program 1 times [2018-07-23 22:31:08,178 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 22:31:08,179 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 22:31:08,179 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 22:31:08,180 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 22:31:08,180 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 22:31:08,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 22:31:08,684 WARN L169 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-07-23 22:31:08,887 WARN L169 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-07-23 22:31:09,594 INFO L134 CoverageAnalysis]: Checked inductivity of 421 backedges. 274 proven. 142 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-23 22:31:09,595 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 22:31:09,595 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-23 22:31:09,595 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 343 with the following transitions: [2018-07-23 22:31:09,596 INFO L201 CegarAbsIntRunner]: [0], [7], [15], [23], [31], [39], [47], [55], [63], [71], [79], [87], [95], [103], [111], [119], [127], [135], [143], [151], [159], [167], [175], [183], [191], [199], [207], [215], [223], [231], [239], [247], [255], [263], [271], [279], [287], [295], [303], [311], [319], [327], [335], [343], [351], [359], [367], [375], [383], [391], [399], [407], [415], [423], [431], [439], [447], [451], [453], [456], [464], [472], [480], [488], [493], [497], [501], [505], [509], [512], [513], [517], [521], [525], [529], [533], [537], [541], [545], [549], [552], [553], [557], [561], [565], [569], [573], [577], [581], [585], [589], [593], [597], [601], [605], [609], [613], [617], [621], [625], [629], [633], [637], [641], [645], [649], [653], [657], [661], [664], [946], [947], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-07-23 22:31:09,601 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-23 22:31:09,601 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-23 22:31:22,294 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-07-23 22:31:22,295 INFO L272 AbstractInterpreter]: Visited 122 different actions 237 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-07-23 22:31:22,302 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-07-23 22:31:30,017 INFO L232 lantSequenceWeakener]: Weakened 340 states. On average, predicates are now at 78.08% of their original sizes. [2018-07-23 22:31:30,018 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-07-23 22:31:31,868 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-07-23 22:31:31,868 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-23 22:31:31,869 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [12] total 21 [2018-07-23 22:31:31,869 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 22:31:31,869 INFO L450 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-07-23 22:31:31,870 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-07-23 22:31:31,870 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2018-07-23 22:31:31,870 INFO L87 Difference]: Start difference. First operand 1912 states and 2860 transitions. Second operand 11 states. [2018-07-23 22:32:10,038 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-07-23 22:32:44,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 22:32:44,723 INFO L93 Difference]: Finished difference Result 4007 states and 6123 transitions. [2018-07-23 22:32:44,723 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-07-23 22:32:44,723 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 342 [2018-07-23 22:32:44,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 22:32:44,736 INFO L225 Difference]: With dead ends: 4007 [2018-07-23 22:32:44,736 INFO L226 Difference]: Without dead ends: 2284 [2018-07-23 22:32:44,745 INFO L573 BasicCegarLoop]: 2 DeclaredPredicates, 348 GetRequests, 275 SyntacticMatches, 57 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 314 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-07-23 22:32:44,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2284 states. [2018-07-23 22:32:44,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2284 to 2281. [2018-07-23 22:32:44,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2281 states. [2018-07-23 22:32:44,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2281 states to 2281 states and 3246 transitions. [2018-07-23 22:32:44,811 INFO L78 Accepts]: Start accepts. Automaton has 2281 states and 3246 transitions. Word has length 342 [2018-07-23 22:32:44,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 22:32:44,811 INFO L471 AbstractCegarLoop]: Abstraction has 2281 states and 3246 transitions. [2018-07-23 22:32:44,812 INFO L472 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-07-23 22:32:44,812 INFO L276 IsEmpty]: Start isEmpty. Operand 2281 states and 3246 transitions. [2018-07-23 22:32:44,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 369 [2018-07-23 22:32:44,822 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 22:32:44,823 INFO L353 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 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, 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] [2018-07-23 22:32:44,823 INFO L414 AbstractCegarLoop]: === Iteration 6 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 22:32:44,823 INFO L82 PathProgramCache]: Analyzing trace with hash 126736995, now seen corresponding path program 1 times [2018-07-23 22:32:44,824 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 22:32:44,824 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 22:32:44,825 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 22:32:44,825 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 22:32:44,825 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 22:32:44,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 22:32:45,842 INFO L134 CoverageAnalysis]: Checked inductivity of 447 backedges. 199 proven. 243 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-23 22:32:45,842 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 22:32:45,842 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-23 22:32:45,843 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 369 with the following transitions: [2018-07-23 22:32:45,843 INFO L201 CegarAbsIntRunner]: [0], [7], [15], [23], [31], [39], [47], [55], [63], [71], [79], [87], [95], [103], [111], [119], [127], [135], [143], [151], [159], [167], [175], [183], [191], [199], [207], [215], [223], [231], [239], [247], [255], [263], [271], [279], [287], [295], [303], [311], [319], [327], [335], [343], [351], [359], [367], [375], [383], [391], [399], [407], [415], [423], [431], [439], [447], [451], [453], [456], [464], [472], [480], [488], [493], [497], [501], [505], [509], [512], [513], [517], [521], [525], [529], [533], [537], [541], [545], [549], [553], [557], [561], [565], [569], [573], [577], [581], [585], [589], [593], [597], [601], [605], [609], [613], [617], [621], [625], [629], [633], [637], [641], [645], [649], [653], [656], [657], [661], [664], [946], [947], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-07-23 22:32:45,847 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-23 22:32:45,847 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-23 22:33:05,229 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-07-23 22:33:05,229 INFO L272 AbstractInterpreter]: Visited 122 different actions 238 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-07-23 22:33:05,235 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-07-23 22:33:19,478 INFO L232 lantSequenceWeakener]: Weakened 366 states. On average, predicates are now at 78.02% of their original sizes. [2018-07-23 22:33:19,478 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-07-23 22:33:21,199 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-07-23 22:33:21,199 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-23 22:33:21,200 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [15] total 24 [2018-07-23 22:33:21,200 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 22:33:21,201 INFO L450 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-07-23 22:33:21,202 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-07-23 22:33:21,202 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-07-23 22:33:21,202 INFO L87 Difference]: Start difference. First operand 2281 states and 3246 transitions. Second operand 11 states. [2018-07-23 22:33:50,628 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-07-23 22:34:01,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 22:34:01,684 INFO L93 Difference]: Finished difference Result 4192 states and 6141 transitions. [2018-07-23 22:34:01,684 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-07-23 22:34:01,685 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 368 [2018-07-23 22:34:01,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 22:34:01,696 INFO L225 Difference]: With dead ends: 4192 [2018-07-23 22:34:01,696 INFO L226 Difference]: Without dead ends: 2469 [2018-07-23 22:34:01,705 INFO L573 BasicCegarLoop]: 2 DeclaredPredicates, 375 GetRequests, 301 SyntacticMatches, 57 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 447 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=83, Invalid=259, Unknown=0, NotChecked=0, Total=342 [2018-07-23 22:34:01,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2469 states. [2018-07-23 22:34:01,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2469 to 2466. [2018-07-23 22:34:01,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2466 states. [2018-07-23 22:34:01,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2466 states to 2466 states and 3438 transitions. [2018-07-23 22:34:01,768 INFO L78 Accepts]: Start accepts. Automaton has 2466 states and 3438 transitions. Word has length 368 [2018-07-23 22:34:01,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 22:34:01,769 INFO L471 AbstractCegarLoop]: Abstraction has 2466 states and 3438 transitions. [2018-07-23 22:34:01,769 INFO L472 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-07-23 22:34:01,769 INFO L276 IsEmpty]: Start isEmpty. Operand 2466 states and 3438 transitions. [2018-07-23 22:34:01,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 454 [2018-07-23 22:34:01,784 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 22:34:01,784 INFO L353 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 22:34:01,784 INFO L414 AbstractCegarLoop]: === Iteration 7 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 22:34:01,785 INFO L82 PathProgramCache]: Analyzing trace with hash -974113777, now seen corresponding path program 1 times [2018-07-23 22:34:01,785 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 22:34:01,786 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 22:34:01,786 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 22:34:01,786 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 22:34:01,786 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 22:34:01,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 22:34:02,122 INFO L134 CoverageAnalysis]: Checked inductivity of 754 backedges. 341 proven. 182 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2018-07-23 22:34:02,122 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 22:34:02,122 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-23 22:34:02,123 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 454 with the following transitions: [2018-07-23 22:34:02,123 INFO L201 CegarAbsIntRunner]: [0], [7], [15], [23], [31], [39], [47], [55], [63], [71], [79], [87], [95], [103], [111], [119], [127], [135], [143], [151], [159], [167], [175], [183], [191], [199], [207], [215], [223], [231], [239], [247], [255], [263], [271], [279], [287], [295], [303], [311], [319], [327], [335], [343], [351], [359], [367], [375], [383], [391], [399], [407], [415], [423], [431], [439], [447], [451], [453], [456], [464], [472], [480], [488], [493], [497], [501], [505], [509], [512], [513], [517], [521], [525], [529], [533], [537], [541], [545], [549], [552], [553], [557], [561], [565], [569], [573], [577], [581], [585], [589], [593], [597], [601], [605], [609], [613], [617], [621], [625], [629], [633], [637], [641], [645], [649], [653], [656], [657], [661], [664], [946], [947], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-07-23 22:34:02,126 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-23 22:34:02,127 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) Received shutdown request... [2018-07-23 22:34:11,545 WARN L571 FixpointEngine]: Received timeout, aborting fixpoint engine [2018-07-23 22:34:11,546 WARN L158 AbstractInterpreter]: Abstract interpretation run out of time [2018-07-23 22:34:11,547 INFO L419 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-07-23 22:34:11,547 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 22:34:11,547 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 22:34:11,559 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 22:34:11,559 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-23 22:34:11,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 22:34:11,738 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-23 22:34:11,761 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2018-07-23 22:34:11,962 WARN L512 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-23 22:34:11,962 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-23 22:34:11,967 WARN L202 ceAbstractionStarter]: Timeout [2018-07-23 22:34:11,968 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.07 10:34:11 BoogieIcfgContainer [2018-07-23 22:34:11,968 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-23 22:34:11,969 INFO L168 Benchmark]: Toolchain (without parser) took 240461.49 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 2.7 GB in the end (delta: -1.2 GB). Peak memory consumption was 1.4 GB. Max. memory is 7.1 GB. [2018-07-23 22:34:11,970 INFO L168 Benchmark]: CDTParser took 0.21 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 22:34:11,970 INFO L168 Benchmark]: CACSL2BoogieTranslator took 725.91 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: 52.8 MB). Peak memory consumption was 52.8 MB. Max. memory is 7.1 GB. [2018-07-23 22:34:11,971 INFO L168 Benchmark]: Boogie Procedure Inliner took 141.49 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 22:34:11,972 INFO L168 Benchmark]: Boogie Preprocessor took 277.25 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 804.8 MB). Free memory was 1.4 GB in the beginning and 2.3 GB in the end (delta: -903.5 MB). Peak memory consumption was 37.7 MB. Max. memory is 7.1 GB. [2018-07-23 22:34:11,973 INFO L168 Benchmark]: RCFGBuilder took 3789.18 ms. Allocated memory is still 2.3 GB. Free memory was 2.3 GB in the beginning and 2.1 GB in the end (delta: 138.7 MB). Peak memory consumption was 138.7 MB. Max. memory is 7.1 GB. [2018-07-23 22:34:11,973 INFO L168 Benchmark]: TraceAbstraction took 235522.41 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.1 GB in the beginning and 2.7 GB in the end (delta: -527.4 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. [2018-07-23 22:34:11,978 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 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 725.91 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: 52.8 MB). Peak memory consumption was 52.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 141.49 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 277.25 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 804.8 MB). Free memory was 1.4 GB in the beginning and 2.3 GB in the end (delta: -903.5 MB). Peak memory consumption was 37.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 3789.18 ms. Allocated memory is still 2.3 GB. Free memory was 2.3 GB in the beginning and 2.1 GB in the end (delta: 138.7 MB). Peak memory consumption was 138.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 235522.41 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.1 GB in the beginning and 2.7 GB in the end (delta: -527.4 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 190]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 190). Cancelled while BasicCegarLoop was analyzing trace of length 454 with TraceHistMax 5, while TraceCheckSpWp was constructing forward predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 6 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 255 locations, 1 error locations. TIMEOUT Result, 235.4s OverallTime, 7 OverallIterations, 5 TraceHistogramMax, 153.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1035 SDtfs, 3473 SDslu, 1207 SDs, 0 SdLazy, 6115 SolverSat, 1175 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 103.2s Time, PredicateUnifierStatistics: 6 DeclaredPredicates, 1000 GetRequests, 834 SyntacticMatches, 117 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 768 ImplicationChecksByTransitivity, 5.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2466occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 47.0s AbstIntTime, 4 AbstIntIterations, 3 AbstIntStrong, 0.9959765319622346 AbsIntWeakeningRatio, 0.09336099585062241 AbsIntAvgWeakeningVarsNumRemoved, 257.0093360995851 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 6 MinimizatonAttempts, 17 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.9s InterpolantComputationTime, 1333 NumberOfCodeBlocks, 1333 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 1327 ConstructedInterpolants, 0 QuantifiedInterpolants, 4303785 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 3 PerfectInterpolantSequences, 736/1191 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/Problem14_label19_true-unreach-call_false-termination.c_svcomp-Reach-64bit-Taipan_Default-old.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-23_22-34-11-993.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem14_label19_true-unreach-call_false-termination.c_svcomp-Reach-64bit-Taipan_Default-old.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-23_22-34-11-993.csv Completed graceful shutdown